CN104483605B - High-voltage motor insulated detection device - Google Patents
High-voltage motor insulated detection device Download PDFInfo
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- CN104483605B CN104483605B CN201410783206.6A CN201410783206A CN104483605B CN 104483605 B CN104483605 B CN 104483605B CN 201410783206 A CN201410783206 A CN 201410783206A CN 104483605 B CN104483605 B CN 104483605B
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Abstract
The high-voltage motor insulated detection device of the present invention is related to high-voltage motor insulated detection technique field, previous high pressure standby electricity machine will carry out cumbersome artificial detected with megger and insulate before putting into operation, the present invention provides a kind of safe and reliable, detection is accurate, it is easy to operate, easily implement, detection instruction can be automatically performed detection process after sending out, it is made of more monopole vacuum contactors or high-voltage isolator etc. and insulation detecting circuit is carried out to more high-voltage motors and its main circuit, detection first discharges to switchgear before starting, so as to find the potential faults of switchgear, the cut-off measure loop of electric current relay J0 actions stops detection, it is transferred to automatically after electric discharge and Insulation monitoring is carried out to high-voltage motor and its main circuit, and pass through digital high-voltage megameter and show, print testing result.
Description
Technical field：
The present invention relates to high-voltage motor insulated detection technique field, particularly high-voltage motor insulated detection device.
Background technology：
High pressure standby electricity machine will carry out Insulation monitoring before putting into operation, it is previous it is traditional it is artificial shake survey it is troublesome, especially
It is that present high-tension switch cabinet all has five anti-functions, it is necessary to strictly observe operation order, once shake the drawing for surveying light earthing switch
It closes just up to 4 times, two skilled persons on duty at least also obtain half an hour or even equipment, therefore standby electricity are also damaged due to misoperation
It is badly in need of a kind of new ideal insulation detection device, but there are no similar so far in machine especially stand-by heat Insulation monitoring work
Design and product.
Invention content：
The purpose of the present invention is in view of the foregoing drawbacks, provide a kind of safe and reliable, accurate, easy to operate, easy reality of detection
Apply, detect instruction send out after can be automatically performed detection process, and can show by digital high-voltage megameter, print detection tie
The high pressure standby electricity machine insulation detection device of fruit.
The technical scheme is that high-voltage motor insulated detection device, including high-voltage motor insulated detection main circuit and height
Medium-voltage Motor Insulation monitoring AC control circuit and high-voltage motor insulated detection DC control circuit, it is characterized in that high-voltage motor insulated
It is true by n platform monopole vacuum contactors KM1~KMn, high-voltage isolator GLQ, high pressure vacuum relay ZK1, high pressure to detect main circuit
Empty relay ZK2, digital high-voltage megameter M Ω, zero sequence current mutual inductor CT01~CT0n, electric current relay J0 composition, n platforms
Refer to the number of units of corresponding tested motor M1~Mn, 6~10KV of high voltage power supply main circuits pass through vacuum circuit breaker QF1 and zero-sequence current
Mutual inductor CT01 to motor M1, high-voltage motor insulated resistance RjY1 refer to that motor three-phase windings and its connected cable and vacuum are broken
Switchgear including the device QF1 lower ends of road to total insulation resistance RjY1 of ground wire V0, what three-phase windings were connected to, detect a phase
Insulation against ground resistance is exactly total insulation resistance, and guide line A1 is connected to vacuum circuit breaker QF1 lower ends across lower section zero sequence electricity
The normally opened static contact of current transformer CT01 connection monopole vacuum contactors KM1, high voltage power supply 6~10KV main circuits another way are passed through
Vacuum circuit breaker QFn and zero sequence current mutual inductor CT0n to motor Mn, high-voltage motor insulated resistance RjYn refer to motor three-phase around
Switchgear including group and its connected cable and vacuum circuit breaker QFn lower ends to total insulation resistance RjYn of ground wire V0,
Guide line An is connected to vacuum circuit breaker QFn lower ends across lower section zero sequence current mutual inductor CT0n connection monopole vacuum contactors
The normally opened static contact of KMn, guide line A0 is by the normally opened moving contact of monopole vacuum contactor KM1 and monopole vacuum contactor KMn
Normally opened moving contact connects and connects high-voltage isolator GLQ static contacts, high-voltage isolator GLQ moving contacts connect high pressure vacuum after
On the line of the contact A of the normally opened static contacts of electric appliance ZK1 and the normally opened static contacts of high pressure vacuum relay ZK2,0 set of Current Transmit
In high-voltage isolator GLQ moving contacts and the normally opened static contacts of high pressure vacuum relay ZK1 and the normally opened stationary contacts of high pressure vacuum relay ZK2
On the line of head contact A, the normally opened moving contact connection digital high-voltage megameter M Ω of high pressure vacuum relay ZK2, digital height
Press the normally opened moving contact connection ground wire V0 of the connection of the megameter M Ω other ends ground wire V0, high pressure vacuum relay ZK1, current transformer
The secondary winding lead-out wire of CT0 connects the both ends of relay J0 respectively.
The high-voltage motor insulated detection device, including high-voltage motor insulated detection AC control circuit, it is characterized in that high
Medium-voltage Motor Insulation monitoring AC control circuit by miniature circuit breaker 1DK, emergent stopping detection button SBJ, detection start button SB,
Detection button SB1~SBn, branch detection change-over switch SK, intermediate relay KA, intermediate relay KA1~KAn, intermediate relay
Device J1, intermediate relay J2, time relay KT1, time relay KT2, time relay KT3, vacuum circuit breaker QF1~
The auxiliary normally closed interlock and corresponding indicator light of QFn is formed, and the firewire connection miniature circuit breaker 1DK firewires of power supply~220V are quiet
Contact, the zero curve connection miniature circuit breaker 1DK zero curve stationary contacts of power supply~220V, the connection of miniature circuit breaker 1DK firewires movable contact
The other end connection dropping resistor 1R1 of emergent stopping detection button SBJ and indicator light XDJ, indicator light XDJ, dropping resistor 1R1's
The other end connects miniature circuit breaker 1DK zero curve movable contacts, the other end Connection Time relay of emergent stopping detection button SBJ
KT2 normally-closed contacts, time relay KT2 normally-closed contacts other end connection relay J0 normally-closed contacts, relay J0 normally-closed contacts
Other end connecting detection start button SB normally opened contacts and intermediate relay KA normally opened contacts, detection start button SB is normally opened to be touched
Point connects indicator light XD, intermediate relay KA, branch detection change-over switch SK with the other end of intermediate relay KA normally opened contacts
Stationary contact (0), intermediate relay KA1 and intermediate relay KAn, the other end connection dropping resistor 1R2 of indicator light XD, decompression electricity
The other end of resistance 1R2 connects miniature circuit breaker 1DK zero curve movable contacts with the other end of intermediate relay KA, and branch detection conversion is opened
SK movable contacts (1) connecting detection button SB1 normally opened contacts and intermediate relay KA1 normally opened contacts are closed, detection button SB1 is normally opened to be touched
The other end of point connects vacuum circuit breaker QF1 with the other end of intermediate relay KA1 normally opened contacts, and vacuum circuit breaker QF1's is another
One end connects indicator light XD1 and intermediate relay KA1, the other end connection dropping resistor 1R3, dropping resistor 1R3 of indicator light XD1
The other end connect miniature circuit breaker 1DK zero curve movable contacts with the other end of intermediate relay KA1, branch detection change-over switch SK
Movable contact (n) connecting detection button SBn normally opened contacts and intermediate relay KAn normally opened contacts, detection button SBn normally opened contacts
The other end connects vacuum circuit breaker QFn, the other end of vacuum circuit breaker QFn with the other end of intermediate relay KAn normally opened contacts
Indicator light XDn and intermediate relay KAn is connected, the other end connection dropping resistor 1R4 of indicator light XDn, dropping resistor 1R4's is another
One end connects miniature circuit breaker 1DK zero curve movable contacts, intermediate relay KA1 normally opened contacts with the other end of intermediate relay KAn
The other end connection intermediate relay KAn normally opened contacts the other end, time relay KT3 normally-closed contacts, time relay KT1
Normally opened contact and intermediate relay J2 normally opened contacts, the other end connection indicator light XDF of time relay KT3 normally-closed contacts is in
Between relay J1 and time relay KT1 normally opened contacts, indicator light XDF the other end connection dropping resistor 1R5, dropping resistor
The other end of 1R5 connects miniature circuit breaker 1DK zero curves with the other end of time relay KT1 with the other end of intermediate relay J1
Movable contact, the other end of the other end connection intermediate relay J2 normally opened contacts of time relay KT1 normally opened contacts, intermediate relay
Device J2, time relay KT2 and time relay KT3, the other end of intermediate relay J2 and the other end of time relay KT2
Miniature circuit breaker 1DK zero curve movable contacts are connected with the other end of time relay KT3.
The high-voltage motor insulated detection device, including high-voltage motor insulated detection DC control circuit, it is characterized in that high
Medium-voltage Motor Insulation monitoring DC control circuit is by miniature circuit breaker 2DK, monopole vacuum contactor KM1~KMn, high-voltage isolator
GLQ, high pressure vacuum relay ZK1, high pressure vacuum relay ZK2, indicator light XD2 compositions, the anode connection of DC power supply DC are micro-
Type breaker 2DK anode stationary contacts, the cathode connection miniature circuit breaker 2DK cathode stationary contacts of DC power supply DC, miniature circuit breaker
2DK anodes movable contact connection indicator light XD2, intermediate relay KA normally opened contacts, intermediate relay KA1 normally opened contacts, it is intermediate after
Electric appliance KAn normally opened contacts, intermediate relay J1 normally opened contacts, intermediate relay J2 normally opened contacts, the other end of indicator light XD2 connect
Dropping resistor R5 is met, the other end connection miniature circuit breaker 2DK cathode movable contacts of dropping resistor R5, intermediate relay KA is normally opened to be touched
Point other end connection high-voltage isolator GLQ and diode D1 cathode, diode D1 anodes connection resistance 1R, the other end of resistance 1R
Intermediate relay KA normally opened contacts, the other end of intermediate relay KA normally opened contacts are connected with the other end of high-voltage isolator GLQ
Connect resistance R1 and intermediate relay KA normally-closed contacts, the other end of resistance R1 and the other end of intermediate relay KA normally-closed contacts
Connect miniature circuit breaker 2DK cathode movable contacts, intermediate relay KA1 normally opened contacts other end connection monopole vacuum contactor KM1
With diode D2 cathode, diode D2 anodes connection resistance 2R, the other end of resistance 2R and monopole vacuum contactor KM1's is another
End connection intermediate relay KA1 normally opened contacts, the other end connection resistance R2 of intermediate relay KA1 normally opened contacts and intermediate relay
Device KA1 normally-closed contacts, the other end of resistance R2 connect miniature circuit breaker 2DK with the other end of intermediate relay KA1 normally-closed contacts
Cathode movable contact, intermediate relay KAn normally opened contacts other end connection monopole vacuum contactor KMn and diode D3 cathode, two
Pole pipe D3 anodes connect resistance 3R, and the other end of resistance 3R connects intermediate relay with the other end of monopole vacuum contactor KMn
KAn normally opened contacts, the other end connection resistance R3 and intermediate relay KAn normally-closed contacts of intermediate relay KAn normally opened contacts, electricity
The other end of resistance R3 connect miniature circuit breaker 2DK cathode movable contacts with the other end of intermediate relay KAn normally-closed contacts, centre after
The electric appliance J1 normally opened contacts other end connects high pressure vacuum relay ZK1 and diode D4 cathode, diode D4 anodes connection resistance
The other end of 4R, resistance 4R connect intermediate relay J1 normally opened contacts, intermediate relay with the other end of high pressure vacuum relay ZK1
The device J2 normally opened contacts other end connects high pressure vacuum relay ZK2 and diode D5 cathode, and diode D5 anodes connect resistance 5R,
The other end of resistance 5R connects intermediate relay J2 normally opened contacts, intermediate relay with the other end of high pressure vacuum relay ZK2
The J1 normally opened contacts other end connects resistance R4 with the intermediate relay J2 normally opened contact other ends, and the other end connection of resistance R4 is miniature
Breaker 2DK cathode movable contacts.
The high-voltage motor insulated detection device, it is characterized in that high-voltage isolator GLQ moved ends head connection high pressure vacuum relay
On the line of the contact A of the normally opened static contacts of device ZK1 and the normally opened static contacts of high pressure vacuum relay ZK2, Current Transmit 0 is sleeved on
High-voltage isolator GLQ moving contacts and the normally opened static contacts of high pressure vacuum relay ZK1 and the normally opened static contacts of high pressure vacuum relay ZK2
On the line of contact A, the normally opened moving contact connection digital high-voltage megameter M Ω of high pressure vacuum relay ZK2, digital high-voltage
The megameter M Ω other ends connect ground wire V0, the normally opened moving contact connection ground wire V0 of high pressure vacuum relay ZK1, Current Transmit 0
Secondary winding lead-out wire connect the both ends of relay J0 respectively, when high pressure vacuum relay ZK1 normally open contacts and high pressure vacuum
Relay ZK2 normally open contacts form discharge loop when all connecting, and starting preceding switch cabinet to detection discharges, it is found that switchgear has
Measure loop stopping detection or low-vacuum load-tripping device ZK1 normally open contacts can be cut off in electric current relay J0 normally closed interlocks during potential faults
The measure loop of high-voltage motor insulated resistance RjY1 is formed after disconnection, carries out the detection of high-voltage motor insulated resistance RjY1.
The high-voltage motor insulated detection device, the Insulation monitoring main circuit for being high-voltage isolator control is by high-voltage electricity
In machine insulation detection device high-voltage isolator GLQ1~GLQn controls are used instead with monopole vacuum contactor KM1~KMn controls, it is special
Sign be high-voltage isolator control main circuit by n platform high-voltage isolators GLQ1~GLQn, high-voltage isolator GLQ, high pressure vacuum after
Electric appliance ZK1, high pressure vacuum relay ZK2, digital high-voltage megameter M Ω, zero sequence current mutual inductor CT01~CT0n, electric current after
Electric appliance J0 is formed, and n platforms refer to the number of units of corresponding tested motor M1~Mn, and 6~10KV of high voltage power supply main circuits pass through vacuum circuit breaker
Device QF1 and zero sequence current mutual inductor CT01 to motor M1, high-voltage motor insulated resistance RjY1 refer to motor three-phase windings and its phase
Switchgear including cable even and vacuum circuit breaker QF1 lower ends is to total insulation resistance RjY1 of ground wire V0, three-phase windings
It is connected to, relatively insulation resistance is exactly total insulation resistance for detection one, and guide line A1 is connected to vacuum circuit breaker QF1 lower ends
Head passes through the normally opened static contact of lower section zero sequence current mutual inductor CT01 connection high-voltage isolators GLQ1, high voltage power supply 6~10KV masters
Circuit another way passes through vacuum circuit breaker QFn and zero sequence current mutual inductor CT0n to motor Mn, high-voltage motor insulated resistance RjYn
Refer to the switchgear including motor three-phase windings and its connected cable and vacuum circuit breaker QFn lower ends to the total of ground wire V0
Insulation resistance RjYn, guide line An are connected to vacuum circuit breaker QFn lower ends across lower section zero sequence current mutual inductor CT0n connections
The normally opened static contact of high-voltage isolator GLQn, guide line A0 is by the normally opened moving contact and high-voltage isolator of high-voltage isolator GLQ1
The normally opened moving contact of GLQn connects and connects high-voltage isolator GLQ static contacts, high-voltage isolator GLQ moving contacts connection high pressure
On the line of the contact A of the normally opened static contacts of low-vacuum load-tripping device ZK1 and the normally opened static contacts of high pressure vacuum relay ZK2, Current Mutual Inductance
Device CT0 is sleeved on high-voltage isolator GLQ moving contacts and the normally opened static contacts of high pressure vacuum relay ZK1 and high pressure vacuum relay ZK2
On the line of normally opened static contact contact A, the normally opened moving contact connection digital high-voltage megameter M Ω of high pressure vacuum relay ZK2,
The digital high-voltage megameter M Ω other ends connect ground wire V0, the normally opened moving contact connection ground wire V0 of high pressure vacuum relay ZK1, electricity
The secondary winding lead-out wire of current transformer CT0 connects the both ends of relay J0, the DC control electricity of high-voltage isolator control respectively
It is true to route miniature circuit breaker 2DK, high-voltage isolator GLQ1~GLQn, high-voltage isolator GLQ, high pressure vacuum relay ZK1, high pressure
Empty relay ZK2, indicator light XD2 are formed, the anode connection miniature circuit breaker 2DK anode stationary contacts of DC power supply DC, direct current
The cathode connection miniature circuit breaker 2DK cathode stationary contacts of source DC, miniature circuit breaker 2DK anodes movable contact connection indicator light XD2, in
Between relay KA normally opened contacts, intermediate relay KA1 normally opened contacts, intermediate relay KAn normally opened contacts, intermediate relay J1 it is normal
Contact, intermediate relay J2 normally opened contacts are opened, the other end connection dropping resistor R5 of indicator light XD2, dropping resistor R5's is another
End connection miniature circuit breaker 2DK cathode movable contacts, intermediate relay KA normally opened contacts other end connection high-voltage isolator GLQ and two
Pole pipe D1 cathode, diode D1 anodes connection resistance 1R, during the other end of resistance 1R is connected with the other end of high-voltage isolator GLQ
Between relay KA normally opened contacts, intermediate relay KA normally opened contacts the other end connection resistance R1 and intermediate relay KA it is normally closed touch
Point, the other end of resistance R1 connect miniature circuit breaker 2DK cathode movable contacts with the other end of intermediate relay KA normally-closed contacts, in
Between relay KA1 normally opened contacts other end connection high-voltage isolator GLQ1 and diode D2 cathode, diode D2 anodes connection electricity
2R is hindered, the other end of resistance 2R connects intermediate relay KA1 normally opened contacts, intermediate relay with the other end of high-voltage isolator GLQ1
The other end of the other end connection resistance R2 and intermediate relay KA1 normally-closed contacts, resistance R2 of device KA1 normally opened contacts and it is intermediate after
The other end connection miniature circuit breaker 2DK cathode movable contacts of electric appliance KA1 normally-closed contacts, intermediate relay KAn normally opened contacts are another
End connection high-voltage isolator GLQn and diode D3 cathode, diode D3 anodes connection resistance 3R, the other end and height of resistance 3R
The other end connection intermediate relay KAn normally opened contacts of isolator GLQn are pressed, the other end of intermediate relay KAn normally opened contacts connects
Connecting resistance R3 and intermediate relay KAn normally-closed contacts, the other end of resistance R3 and the other end of intermediate relay KAn normally-closed contacts
Connect miniature circuit breaker 2DK cathode movable contacts, the intermediate relay J1 normally opened contacts other end connection high pressure vacuum relay ZK1 and
Diode D4 cathode, diode D4 anodes connection resistance 4R, the other end of resistance 4R and the other end of high pressure vacuum relay ZK1
Connect intermediate relay J1 normally opened contacts, intermediate relay J2 normally opened contacts other end connection high pressure vacuum relay ZK2 and two
Pole pipe D5 cathode, the other end of the connection of diode D5 anodes resistance 5R, resistance 5R and the other end of high pressure vacuum relay ZK2 connect
Connect intermediate relay J2 normally opened contacts, the intermediate relay J1 normally opened contacts other end and the intermediate relay J2 normally opened contact other ends
Connect resistance R4, the other end connection miniature circuit breaker 2DK cathode movable contacts of resistance R4.
The high-voltage motor insulated detection device of the present invention can replace previous high pressure standby electricity machine that will be carried out before putting into operation
Cumbersome artificial detected with megger is insulated, be a kind of safe and reliable, detection it is accurate, easy to operate, easy implement, detection instruction hair
The device of detection process can be automatically performed after going out, is made of more monopole vacuum contactors or high-voltage isolator etc. to more high pressures
Motor and its main circuit carry out insulation detecting circuit, and detection first discharges to switchgear before starting, so as to find switchgear
Potential faults, the cut-off measure loop of electric current relay J0 actions stops detection, is transferred to automatically to high-voltage electricity after electric discharge
Machine and its main circuit carry out Insulation monitoring, and pass through digital high-voltage megameter and show, print testing result.
Description of the drawings：
The high-voltage motor insulated detection device main circuit schematic diagrams of Fig. 1
The high-voltage motor insulated detection device AC control circuit schematic diagrams of Fig. 2
The high-voltage motor insulated detection device DC control circuit schematic diagrams of Fig. 3
The Insulation monitoring main circuit schematic diagram of Fig. 4 high-voltage isolators control
The Insulation monitoring DC control circuit schematic diagram of Fig. 5 high-voltage isolators control
6~10KV high voltage power supplies, QF1~QFn vacuum circuit breakers, KM1~KMn monopoles vacuum contactor, GLQ high in Fig. 1
Press isolator, ZK1~ZK2 high pressure vacuums relay, M Ω digital high-voltages megameter, CT01~CT0n zero sequence current mutual inductors,
J0 electric current relays, M1~Mn tested motors, the high-voltage motor insulated resistance of RjY1, A1 guide lines, An guide lines, A0 guide lines, A
Contact, V0 ground wires.
In Fig. 2~220V power supplys, 1DK miniature circuit breakers, SBJ emergent stoppings detection button, SB detection start button, SB1
~SBn detection buttons, SK branches detection change-over switch, KA intermediate relays, KA1~KAn intermediate relays, J0 electric current relays
Device, J1~J2 intermediate relays, KT1~KT3 time relays, QF1~QFn vacuum circuit breakers, XDJ indicator lights, XD indicator lights,
XD1~XDn indicator lights, XDF indicator lights, 1DK miniature circuit breakers, 1R1~1R5 resistance.
3DC DC power supplies in Fig. 3,2DK miniature circuit breakers, KM1~KMn monopoles vacuum contactor, GLQ high-voltage isolators,
ZK1~ZK2 high pressure vacuums relay, XD2 indicator lights, KA intermediate relays, KA1~KAn intermediate relays, among J1~J2 after
Electric appliance, GLQ high-voltage isolators, KM1~KMn monopoles vacuum contactor, ZK1~ZK2 high pressure vacuums relay, bis- poles of D1~D5
Pipe, 1R~5R resistance, R1~R5 resistance.
6~10KV high voltage power supplies, QF1~QFn vacuum circuit breakers, GLQ1~GLQ2 high-voltage isolators, ZK1~ZK2 in Fig. 4
High pressure vacuum relay, M Ω digital high-voltages megameter, CT01~CT0n zero sequence current mutual inductors, J0 electric current relays, M1~
The high-voltage motor insulated resistance of Mn tested motors, RjY1, A1 guide lines, An guide lines, A0 guide lines, A contacts, V0 ground wires.
3DC DC power supplies, 2DK miniature circuit breakers, GLQ1~GLQn high-voltage isolators, GLQ high-voltage isolators, XD2 in Fig. 5
Indicator light, KA intermediate relays, KA1~KAn intermediate relays, J1~J2 intermediate relays, GLQ high-voltage isolators, KM1~
KMn monopoles vacuum contactor, ZK1~ZK2 high pressure vacuums relay, D1~D5 diodes, 1R~5R resistance, R1~R5 resistance.
Specific embodiment：
Fig. 1 is high-voltage motor insulated detection device main circuit schematic diagram, and Fig. 2 is high-voltage motor insulated detection device exchange control
Circuit diagram processed, Fig. 3 are high-voltage motor insulated detection device DC control circuit schematic diagrams.Operation principle：Figure mesohigh electricity
Machine insulation resistance RjY1 refers to that the switch including motor three-phase windings and its connected cable and vacuum circuit breaker QF1 lower ends is set
Standby total insulation resistance over the ground.Because what three-phase windings were connected to, relatively insulation resistance is exactly total insulation for detection one
Resistance.Testing process by taking tested motor M1 as an example is：Pressure detection start button SB, intermediate relay KA actuation indicates simultaneously
Lamp XD is bright → intermediate relay KA normally opened contacts connection → high-voltage isolator GLQ actuations → branch detection change-over switch SK selections position
1 → depressing detection button SB1 → is put by vacuum circuit breaker QF1 normally-closed contacts → intermediate relay KA1 actuations while indicator light
XD1 is bright → and monopole vacuum contactor KM1 actuations → monopole vacuum contactor KM1 normally opened contacts connect → while intermediate relay J1
With time relay KT1 (the normally closed delay break contacts of elapsed time relay KT3) be attracted indicator light XDF simultaneously it is bright → high pressure is true
(guide line A1 is connected to very actuation → composition discharge loop empty relay ZK1 (being connected by J1 intermediate relays normally opened contact)
Empty circuit breaker Q F1 lower ends pass through the normally opened static contact of lower section zero sequence current mutual inductor CT01 connection monopole vacuum contactors KM1,
Monopole vacuum contactor KM1 normally opened contacts have turned on, and the normally opened moving contact of monopole vacuum contactor KM1 connects by guide line A0
High-voltage isolator GLQ static contacts are connect, high-voltage isolator GLQ normally opened contacts have turned on, and high-voltage isolator GLQ moved ends head passes through electricity
Current transformer CT0 is connected on the line of the contact A of the normally opened static contacts of low-vacuum load-tripping device ZK2, and contact A passes through high pressure vacuum relay
The normally opened moving contact connection ground wire V0 of device ZK1) → the discharge circuit work before starting is detected (because conducting wire passes through former its work of zero sequence CT01
With cut-off switchgear, electric current relay J0 normally closed interlocks can be cut off measure loop and stop detection, so as to find switchgear
Potential faults.The stage is that megameter is put by high pressure vacuum relay ZK2, high pressure vacuum relay ZK1 closed circuits after electric discharge
Electricity, the delay of time relay KT1 disconnect intermediate relay J1, and intermediate relay J1 normally open contacts restore, and disconnect high pressure vacuum
Relay ZK1 terminates discharge process, and indicator light XDF lamps go out, this process time be 3~5 seconds) → intermediate relay J2 and
Time relay KT2 and time relay KT3 (the normally opened delays of elapsed time relay KT1 are connected) actuation → intermediate relay J1
With time relay KT1 (elapsed time relay KT3 normally closed delay disconnect) power-off simultaneously indicator light XDF go out → high pressure vacuum after
Electric appliance ZK1 (disconnection of intermediate relay J1 normally opened contacts) powers off → starts detection → guide line A1 and is connected to vacuum circuit breaker QF1
Lower end passes through the normally opened static contact of lower section zero sequence current mutual inductor CT01 connection monopole vacuum contactors KM1, and monopole vacuum connects
Tentaculum KM1 normally opened contacts have turned on, and the normally opened moving contact of monopole vacuum contactor KM1 passes through guide line A0 connection high_voltage isolations
Device GLQ static contacts, high-voltage isolator GLQ normally opened contacts have turned on, and high-voltage isolator GLQ high-voltage isolator GLQ moved ends head is even
On the line for meeting the contact A of the normally opened static contacts of high pressure vacuum relay ZK2, Current Transmit 0 is socketed in high-voltage isolator GLQ
It is high on the line of moving contact and the normally opened static contacts of high pressure vacuum relay ZK1 and the normally opened static contact contact A of low-vacuum load-tripping device ZK2
Pressure low-vacuum load-tripping device ZK2 normally opened contacts have turned on, the normally opened moving contact connection digital high-voltage million of high pressure vacuum relay ZK2
Europe table M Ω, digital high-voltage megameter M the Ω other end are grounded, and form the measure loop of high-voltage motor insulated resistance RjY1, electric current
The secondary winding lead-out wire of mutual inductor CT0 connects the both ends of relay J0 respectively, and note is shown on digital high-voltage megameter M Ω
The normally closed delays of testing result → time relay KT2 recorded and preserve high-voltage motor insulated resistance RjY1 disconnect (or relay J0
It is attracted the disconnection of its normally-closed contact) it is automatically stopped detection.Printing is uploaded for RS232 mouthfuls by digital high-voltage megameter M Ω.
Fig. 1 is high-voltage motor insulated detection device main circuit schematic diagram, and specific embodiment is：High-voltage motor insulated detection
Device main circuit is true by n platform monopole vacuum contactors KM1~KMn, high-voltage isolator GLQ, high pressure vacuum relay ZK1, high pressure
Empty relay ZK2, digital high-voltage megameter M Ω, zero sequence current mutual inductor CT01~CT0n, electric current relay J0 composition, n platforms
Refer to the number of units of corresponding tested motor M1~Mn, 6~10KV of high voltage power supply main circuits pass through vacuum circuit breaker QF1 and zero-sequence current
Mutual inductor CT01 to motor M1, high-voltage motor insulated resistance RjY1 refer to that motor three-phase windings and its connected cable and vacuum are broken
Switchgear including the device QF1 lower ends of road to total insulation resistance RjY1 of ground wire V0, what three-phase windings were connected to, detect a phase
Insulation against ground resistance is exactly total insulation resistance, and guide line A1 is connected to vacuum circuit breaker QF1 lower ends across lower section zero sequence electricity
The normally opened static contact of current transformer CT01 connection monopole vacuum contactors KM1, high voltage power supply 6~10KV main circuits another way are passed through
Vacuum circuit breaker QFn and zero sequence current mutual inductor CT0n to motor Mn, high-voltage motor insulated resistance RjYn refer to motor three-phase around
Switchgear including group and its connected cable and vacuum circuit breaker QFn lower ends to total insulation resistance RjYn of ground wire V0,
Guide line An is connected to vacuum circuit breaker QFn lower ends across lower section zero sequence current mutual inductor CT0n connection monopole vacuum contactors
The normally opened static contact of KMn, guide line A0 is by the normally opened moving contact of monopole vacuum contactor KM1 and monopole vacuum contactor KMn
Normally opened moving contact connects and connects high-voltage isolator GLQ static contacts, high-voltage isolator GLQ moved ends head connection high pressure vacuum after
On the line of the contact A of the normally opened static contacts of electric appliance ZK1 and the normally opened static contacts of high pressure vacuum relay ZK2,0 set of Current Transmit
In high-voltage isolator GLQ moving contacts and the normally opened static contacts of high pressure vacuum relay ZK1 and the normally opened stationary contacts of high pressure vacuum relay ZK2
On the line of head contact A, the normally opened moving contact connection digital high-voltage megameter M Ω of high pressure vacuum relay ZK2, digital height
Press the normally opened moving contact connection ground wire V0 of the connection of the megameter M Ω other ends ground wire V0, high pressure vacuum relay ZK1, current transformer
The secondary winding lead-out wire of CT0 connects the both ends of relay J0 respectively.
Fig. 2 is high-voltage motor insulated detection device AC control circuit schematic diagram, and specific embodiment is：High-voltage motor
Insulation detection device AC control circuit is by miniature circuit breaker 1DK, emergent stopping detection button SBJ, detection start button SB, inspection
Survey button SB1~SBn, branch detection change-over switch SK, intermediate relay KA, intermediate relay KA1~KAn, intermediate relay
J1, intermediate relay J2, time relay KT1, time relay KT2, time relay KT3, vacuum circuit breaker QF1~QFn
Auxiliary normally closed interlock and corresponding indicator light formed, the firewire of power supply~220V connection miniature circuit breaker 1DK firewire stationary contacts
Point, the zero curve connection miniature circuit breaker 1DK zero curve stationary contacts of power supply~220V, the connection of miniature circuit breaker 1DK firewires movable contact are tight
Emergency stop stops detection button SBJ and indicator light XDJ, and the other end connection dropping resistor 1R1 of indicator light XDJ, dropping resistor 1R1's is another
One end connects miniature circuit breaker 1DK zero curve movable contacts, the other end Connection Time relay KT2 of emergent stopping detection button SBJ2
Normally-closed contact, the time relay KT2 normally-closed contacts other end connection relay J0 normally-closed contacts, relay J0 normally-closed contacts it is another
One end connecting detection start button SB normally opened contacts and intermediate relay KA normally opened contacts, detection start button SB normally opened contacts and
Other end connection indicator light XD, intermediate relay KA, the branch detection change-over switch SK stationary contacts of intermediate relay KA normally opened contacts
Point (0), intermediate relay KA1 and intermediate relay KAn, the other end connection dropping resistor 1R2 of indicator light XD, dropping resistor
The other end of 1R2 connects miniature circuit breaker 1DK zero curve movable contacts, branch detection change-over switch with the other end of intermediate relay KA
SK movable contacts (1) connecting detection button SB1 normally opened contacts and intermediate relay KA1 normally opened contacts, detection button SB1 normally opened contacts
The other end connect vacuum circuit breaker QF1 with the other end of intermediate relay KA1 normally opened contacts, vacuum circuit breaker QF1's is another
The other end connection dropping resistor 1R3 of end connection indicator light XD1 and intermediate relay KA1, indicator light XD1, dropping resistor 1R3's
The other end connects miniature circuit breaker 1DK zero curve movable contacts with the other end of intermediate relay KA1, and branch detection change-over switch SK is moved
Contact (n) connecting detection button SBn normally opened contacts and intermediate relay KAn normally opened contacts, detection button SBn normally opened contacts it is another
One end connects vacuum circuit breaker QFn with the other end of intermediate relay KAn normally opened contacts, and the other end of vacuum circuit breaker QFn connects
Indicator light XDn and intermediate relay KAn are met, the other end connection dropping resistor 1R4 of indicator light XDn, dropping resistor 1R4's is another
End connects miniature circuit breaker 1DK zero curve movable contacts with the other end of intermediate relay KAn, intermediate relay KA1 normally opened contacts
The other end, time relay KT3 normally-closed contacts, the time relay KT1 of other end connection intermediate relay KAn normally opened contacts are normal
Open contact and intermediate relay J2 normally opened contacts, the other end connection indicator light XDF of time relay KT3 normally-closed contacts and centre
Relay J1 and time relay KT1 normally opened contacts, the other end connection dropping resistor 1R5, dropping resistor 1R5 of indicator light XDF
The other end connect miniature circuit breaker 1DK zero curves with the other end of intermediate relay J1 with the other end of time relay KT1 and move
Contact, the other end, the intermediate relay of the other end connection intermediate relay J2 normally opened contacts of time relay KT1 normally opened contacts
J2, time relay KT2 and time relay KT3, the other end of intermediate relay J2 and the other end of time relay KT2 and
The other end connection miniature circuit breaker 1DK zero curve movable contacts of time relay KT3.
Fig. 3 is high-voltage motor insulated detection device DC control circuit schematic diagram, and specific embodiment is：High-voltage motor is exhausted
Edge detection device DC control circuit is by miniature circuit breaker 2DK, monopole vacuum contactor KM1~KMn, high-voltage isolator GLQ, height
Low-vacuum load-tripping device ZK1, high pressure vacuum relay ZK2, indicator light XD2 compositions are pressed, the anode of DC power supply DC connects miniature open circuit
Device 2DK anode stationary contacts, the cathode connection miniature circuit breaker 2DK cathode stationary contacts of DC power supply DC, miniature circuit breaker 2DK anodes
Movable contact connection indicator light XD2, intermediate relay KA normally opened contacts, intermediate relay KA1 normally opened contacts, intermediate relay KAn
Normally opened contact, intermediate relay J1 normally opened contacts, intermediate relay J2 normally opened contacts, the other end connection decompression of indicator light XD2
The other end connection miniature circuit breaker 2DK cathode movable contacts of resistance R5, dropping resistor R5, intermediate relay KA normally opened contacts are another
End connection high-voltage isolator GLQ and diode D1 cathode, diode D1 anodes connection resistance 1R, the other end and high pressure of resistance 1R
The other end connection intermediate relay KA normally opened contacts of isolator GLQ, the other end connection electricity of intermediate relay KA normally opened contacts
Hinder R1 and intermediate relay KA normally-closed contacts, the other end of resistance R1 connects micro- with the other end of intermediate relay KA normally-closed contacts
Type breaker 2DK cathode movable contacts, intermediate relay KA1 normally opened contacts other end connection monopole vacuum contactor KM1 and two poles
Pipe D2 cathode, diode D2 anodes connection resistance 2R, the other end of resistance 2R are connected with the other end of monopole vacuum contactor KM1
Intermediate relay KA1 normally opened contacts, the other end connection resistance R2 and intermediate relay KA1 of intermediate relay KA1 normally opened contacts
Normally-closed contact, the other end of resistance R2 connect miniature circuit breaker 2DK cathode with the other end of intermediate relay KA1 normally-closed contacts and move
Contact, intermediate relay KAn normally opened contacts other end connection monopole vacuum contactor KMn and diode D3 cathode, diode D3
It is normally opened that the other end and the other end of monopole vacuum contactor KMn of anode connection resistance 3R, resistance 3R connect intermediate relay KAn
Contact, the other end connection resistance R3 and intermediate relay KAn normally-closed contacts of intermediate relay KAn normally opened contacts, resistance R3's
The other end connects miniature circuit breaker 2DK cathode movable contacts, intermediate relay J1 with the other end of intermediate relay KAn normally-closed contacts
The normally opened contact other end connects high pressure vacuum relay ZK1 and diode D4 cathode, diode D4 anodes connection resistance 4R, resistance
The other end of 4R connects intermediate relay J1 normally opened contacts with the other end of high pressure vacuum relay ZK1, and intermediate relay J2 is normal
Open contact other end connection high pressure vacuum relay ZK2 and diode D5 cathode, the connection of diode D5 anodes resistance 5R, resistance 5R
The other end connect intermediate relay J2 normally opened contacts with the other end of high pressure vacuum relay ZK2, intermediate relay J1 is normally opened
The contact other end connects resistance R4, the other end connection miniature circuit breaker of resistance R4 with the intermediate relay J2 normally opened contact other ends
2DK cathode movable contacts.
Fig. 4 is the Insulation monitoring main circuit schematic diagram of high-voltage isolator control, and Fig. 5 is the insulation inspection of high-voltage isolator control
DC control circuit schematic diagram is surveyed, specific embodiment is：The Insulation monitoring main circuit of high-voltage isolator control is by high-voltage electricity
In machine insulation detection device high-voltage isolator GLQ1~GLQn controls, high pressure are used instead with monopole vacuum contactor KM1~KMn controls
Isolator control Insulation monitoring main circuit by n platform high-voltage isolators GLQ1~GLQn, high-voltage isolator GLQ, high pressure vacuum after
Electric appliance ZK1, high pressure vacuum relay ZK2, digital high-voltage megameter M Ω, zero sequence current mutual inductor CT01~CT0n, electric current after
Electric appliance J0 is formed, and n platforms refer to the number of units of corresponding tested motor M1~Mn, and 6~10KV of high voltage power supply main circuits pass through vacuum circuit breaker
Device QF1 and zero sequence current mutual inductor CT01 to motor M1, high-voltage motor insulated resistance RjY1 refer to motor three-phase windings and its phase
Switchgear including cable even and vacuum circuit breaker QF1 lower ends is to total insulation resistance RjY1 of ground wire V0, three-phase windings
It is connected to, relatively insulation resistance is exactly total insulation resistance for detection one, and guide line A1 is connected to vacuum circuit breaker QF1 lower ends
Head passes through the normally opened static contact of lower section zero sequence current mutual inductor CT01 connection high-voltage isolators GLQ1, high voltage power supply 6~10KV masters
Circuit another way passes through vacuum circuit breaker QFn and zero sequence current mutual inductor CT0n to motor Mn, high-voltage motor insulated resistance RjYn
Refer to the switchgear including motor three-phase windings and its connected cable and vacuum circuit breaker QFn lower ends to the total of ground wire V0
Insulation resistance RjYn, guide line An are connected to vacuum circuit breaker QFn lower ends across lower section zero sequence current mutual inductor CT0n connections
The normally opened static contact of high-voltage isolator GLQn, guide line A0 is by the normally opened moving contact and high-voltage isolator of high-voltage isolator GLQ1
The normally opened moving contact of GLQn connects and connects high-voltage isolator GLQ static contacts, high-voltage isolator GLQ moved ends head connection high pressure
On the line of the contact A of the normally opened static contacts of low-vacuum load-tripping device ZK1 and the normally opened static contacts of high pressure vacuum relay ZK2, Current Mutual Inductance
Device CT0 is sleeved on high-voltage isolator GLQ moving contacts and the normally opened static contacts of high pressure vacuum relay ZK1 and high pressure vacuum relay ZK2
On the line of normally opened static contact contact A, the normally opened moving contact connection digital high-voltage megameter M Ω of true high pressure sky relay ZK2,
The digital high-voltage megameter M Ω other ends connect ground wire V0, the normally opened moving contact connection ground wire V0 of high pressure vacuum relay ZK1, electricity
The secondary winding lead-out wire of current transformer CT0 connects the both ends of relay J0 respectively.The Insulation monitoring of high-voltage isolator control is straight
Flow control circuit is by miniature circuit breaker 2DK, high-voltage isolator GLQ1~GLQn, high-voltage isolator GLQ, high pressure vacuum relay
ZK1, high pressure vacuum relay ZK2, indicator light XD2 compositions, the anode connection miniature circuit breaker 2DK anode stationary contacts of DC power supply DC
Point, the cathode connection miniature circuit breaker 2DK cathode stationary contacts of DC power supply DC, the connection of miniature circuit breaker 2DK anodes movable contact refer to
Show lamp XD2, intermediate relay KA normally opened contacts, intermediate relay KA1 normally opened contacts, intermediate relay KAn normally opened contacts, centre
Relay J1 normally opened contacts, intermediate relay J2 normally opened contacts, the other end connection dropping resistor R5 of indicator light XD2, decompression electricity
Hinder R5 the other end connection miniature circuit breaker 2DK cathode movable contacts, the intermediate relay KA normally opened contacts other end connect high pressure every
From device GLQ and diode D1 cathode, the other end of the connection of diode D1 anodes resistance 1R, resistance 1R and high-voltage isolator GLQ's
The other end connects intermediate relay KA normally opened contacts, the other end connection resistance R1 of intermediate relay KA normally opened contacts and it is intermediate after
Electric appliance KA normally-closed contacts, the other end of resistance R1 connect miniature circuit breaker 2DK with the other end of intermediate relay KA normally-closed contacts
Cathode movable contact, intermediate relay KA1 normally opened contacts other end connection high-voltage isolator GLQ1 and diode D2 cathode, diode
It is normally opened that the other end and the other end of high-voltage isolator GLQ1 of the connection of D2 anodes resistance 2R, resistance 2R connect intermediate relay KA1
Contact, the other end connection resistance R2 and intermediate relay KA1 normally-closed contacts of intermediate relay KA1 normally opened contacts, resistance R2's
The other end connects miniature circuit breaker 2DK cathode movable contacts, intermediate relay with the other end of intermediate relay KA1 normally-closed contacts
The KAn normally opened contacts other end connects high-voltage isolator GLQn and diode D3 cathode, diode D3 anodes connection resistance 3R, resistance
The other end of 3R connects intermediate relay KAn normally opened contacts with the other end of high-voltage isolator GLQn, and intermediate relay KAn is normally opened
The other end connection resistance R3 and intermediate relay KAn normally-closed contacts, the other end and intermediate relay KAn of resistance R3 of contact are normal
The other end connection miniature circuit breaker 2DK cathode movable contacts of closed contact, intermediate relay J1 normally opened contacts other end connection high pressure
Low-vacuum load-tripping device ZK1 and diode D4 cathode, diode D4 anodes connection resistance 4R, the other end and high pressure vacuum of resistance 4R after
The other end connection intermediate relay J1 normally opened contacts of electric appliance ZK1, intermediate relay J2 normally opened contacts other end connection high pressure are true
Empty relay ZK2 and diode D5 cathode, diode D5 anodes connection resistance 5R, the other end of resistance 5R and high pressure vacuum relay
The other end connection intermediate relay J2 normally opened contacts of device ZK2, the intermediate relay J1 normally opened contacts other end and intermediate relay
The J2 normally opened contacts other end connects resistance R4, the other end connection miniature circuit breaker 2DK cathode movable contacts of resistance R4.
Claims (5)
1. high-voltage motor insulated detection device exchanges control including high-voltage motor insulated detection main circuit with high-voltage motor insulated detection
Circuit processed and high-voltage motor insulated detection DC control circuit, it is characterized in that high-voltage motor insulated detection main circuit is by n platform monopoles
Vacuum contactor KM1~KMn, high-voltage isolator GLQ, high pressure vacuum relay ZK1, high pressure vacuum relay ZK2, digital height
Press megameter M Ω, zero sequence current mutual inductor CT01~CT0n, electric current relay J0 composition, n platforms refer to corresponding tested motor M1~
The number of units of Mn, 6~10KV of high voltage power supply main circuits pass through vacuum circuit breaker QF1 and zero sequence current mutual inductor CT01 to motor M1,
High-voltage motor insulated resistance RjY1 refers to including motor three-phase windings and its connected cable and vacuum circuit breaker QF1 lower ends
Switchgear to total insulation resistance RjY1 of ground wire V0, what three-phase windings were connected to, relatively insulation resistance is exactly total for detection one
Insulation resistance, guide line A1 be connected to vacuum circuit breaker QF1 lower ends across lower section zero sequence current mutual inductor CT01 connections singly
The normally opened static contact of pole vacuum contactor KM1, high voltage power supply 6~10KV main circuits another way pass through vacuum circuit breaker QFn and zero
Sequence Current Transmit 0n to motor Mn, high-voltage motor insulated resistance RjYn refer to motor three-phase windings and its connected cable and
Switchgear including vacuum circuit breaker QFn lower ends is connected to vacuum to total insulation resistance RjYn of ground wire V0, guide line An
Circuit breaker Q Fn lower ends pass through the normally opened static contact of lower section zero sequence current mutual inductor CT0n connection monopole vacuum contactors KMn, draw
Conducting wire A0 connects the normally opened moving contact of the normally opened moving contact of monopole vacuum contactor KM1 and monopole vacuum contactor KMn
High-voltage isolator GLQ static contacts, the high-voltage isolator GLQ moving contacts connection normally opened static contacts of high pressure vacuum relay ZK1 are connected again
With on the line of the contact A of the normally opened static contacts of high pressure vacuum relay ZK2, Current Transmit 0 is sleeved on high-voltage isolator GLQ and moves
On the line of contact and the normally opened static contacts of high pressure vacuum relay ZK1 and the normally opened static contact contact A of high pressure vacuum relay ZK2,
Normally opened moving contact connection digital high-voltage the megameter M Ω, digital high-voltage megameter M Ω of high pressure vacuum relay ZK2 is another
The normally opened moving contact connection ground wire V0 of end connection ground wire V0, high pressure vacuum relay ZK1, the secondary winding of Current Transmit 0 are drawn
Outlet connects the both ends of relay J0 respectively.
2. high-voltage motor insulated detection device according to claim 1, including high-voltage motor insulated detection AC control circuit,
It is characterized in that high-voltage motor insulated detection AC control circuit is by miniature circuit breaker 1DK, emergent stopping detection button SBJ, detection
Start button SB, detection button SB1~SBn, branch detection change-over switch SK, intermediate relay KA, intermediate relay KA1~
KAn, intermediate relay J1, intermediate relay J2, time relay KT1, time relay KT2, time relay KT3, vacuum
The auxiliary normally closed interlock and corresponding indicator light of circuit breaker Q F1~QFn is formed, and the firewire of power supply~220V connects miniature open circuit
Device 1DK firewire stationary contacts, the zero curve connection miniature circuit breaker 1DK zero curve stationary contacts of power supply~220V, miniature circuit breaker 1DK firewires
Movable contact connects emergent stopping detection button SBJ and indicator light XDJ, the other end connection dropping resistor 1R1 of indicator light XDJ, drop
The other end connection miniature circuit breaker 1DK zero curve movable contacts of piezoresistance 1R1, the other end connection of emergent stopping detection button SBJ
Time relay KT2 normally-closed contacts, time relay KT2 normally-closed contacts other end connection relay J0 normally-closed contacts, relay
The other end connecting detection start button SB normally opened contacts of J0 normally-closed contacts and intermediate relay KA normally opened contacts, detection start by
Button SB normally opened contacts connect indicator light XD, intermediate relay KA, branch detection with the other end of intermediate relay KA normally opened contacts
Change-over switch SK stationary contacts (0), intermediate relay KA1 and intermediate relay KAn, the other end connection dropping resistor of indicator light XD
The other end of 1R2, dropping resistor 1R2 connect miniature circuit breaker 1DK zero curve movable contacts, branch with the other end of intermediate relay KA
Detection change-over switch SK movable contacts (1) connecting detection button SB1 normally opened contacts and intermediate relay KA1 normally opened contacts, detection are pressed
The other end of button SB1 normally opened contacts connects vacuum circuit breaker QF1 with the other end of intermediate relay KA1 normally opened contacts, and vacuum is broken
The other end connection dropping resistor 1R3 of the other end connection indicator light XD1 and intermediate relay KA1, indicator light XD1 of road device QF1,
The other end of dropping resistor 1R3 connects miniature circuit breaker 1DK zero curve movable contacts, branch inspection with the other end of intermediate relay KA1
Survey change-over switch SK movable contacts (n) connecting detection button SBn normally opened contacts and intermediate relay KAn normally opened contacts, detection button
The other end of SBn normally opened contacts connects vacuum circuit breaker QFn, vacuum circuit breaker with the other end of intermediate relay KAn normally opened contacts
The other end connection dropping resistor 1R4 of the other end connection indicator light XDn and intermediate relay KAn, indicator light XDn of device QFn, drop
The other end of piezoresistance 1R4 connects miniature circuit breaker 1DK zero curve movable contacts, intermediate relay with the other end of intermediate relay KAn
The other end connection other ends of intermediate relay KAn normally opened contacts of device KA1 normally opened contacts, time relay KT3 normally-closed contacts,
Time relay KT1 normally opened contacts and intermediate relay J2 normally opened contacts, the other end connection of time relay KT3 normally-closed contacts
Indicator light XDF and intermediate relay J1 and time relay KT1 normally opened contacts, the other end connection dropping resistor of indicator light XDF
The other end of 1R5, dropping resistor 1R5 connect miniature with the other end of intermediate relay J1 with the other end of time relay KT1
Breaker 1DK zero curve movable contacts, the other end of time relay KT1 normally opened contacts connect the another of intermediate relay J2 normally opened contacts
One end, intermediate relay J2, time relay KT2 and time relay KT3, the other end and time relay of intermediate relay J2
The other end of device KT2 connects miniature circuit breaker 1DK zero curve movable contacts with the other end of time relay KT3.
3. high-voltage motor insulated detection device according to claim 1, including high-voltage motor insulated detection DC control circuit,
It is characterized in that high-voltage motor insulated detection DC control circuit is by miniature circuit breaker 2DK, monopole vacuum contactor KM1~KMn, height
Isolator GLQ, high pressure vacuum relay ZK1, high pressure vacuum relay ZK2, indicator light XD2 compositions are pressed, DC power supply DC is just
Pole connects miniature circuit breaker 2DK anode stationary contacts, and the cathode connection miniature circuit breaker 2DK cathode stationary contacts of DC power supply DC are micro-
Type breaker 2DK anodes movable contact connection indicator light XD2, intermediate relay KA normally opened contacts, intermediate relay KA1 are normally opened tactile
Point, intermediate relay KAn normally opened contacts, intermediate relay J1 normally opened contacts, intermediate relay J2 normally opened contacts, indicator light XD2
The other end connection dropping resistor R5, dropping resistor R5 the other end connection miniature circuit breaker 2DK cathode movable contacts, intermediate relay
The device KA normally opened contacts other end connects high-voltage isolator GLQ and diode D1 cathode, diode D1 anodes connection resistance 1R, resistance
The other end of 1R connects intermediate relay KA normally opened contacts with the other end of high-voltage isolator GLQ, and intermediate relay KA is normally opened to be touched
The other end connection resistance R1 and intermediate relay KA normally-closed contacts of point, the other end and intermediate relay KA of resistance R1 are normally closed to be touched
The other end connection miniature circuit breaker 2DK cathode movable contacts of point, intermediate relay KA1 normally opened contacts other end connection monopole vacuum
Contactor KM1 and diode D2 cathode, diode D2 anodes connection resistance 2R, the other end of resistance 2R and monopole vacuum contactor
The other end connection intermediate relay KA1 normally opened contacts of KM1, the other end connection resistance R2 of intermediate relay KA1 normally opened contacts
With intermediate relay KA1 normally-closed contacts, the other end of resistance R2 connects miniature with the other end of intermediate relay KA1 normally-closed contacts
Breaker 2DK cathode movable contacts, intermediate relay KAn normally opened contacts other end connection monopole vacuum contactor KMn and diode
D3 cathode, diode D3 anodes connection resistance 3R, during the other end of resistance 3R is connected with the other end of monopole vacuum contactor KMn
Between relay KAn normally opened contacts, intermediate relay KAn normally opened contacts the other end connection resistance R3 and intermediate relay KAn it is normal
Closed contact, the other end of resistance R3 connected with the other end of intermediate relay KAn normally-closed contacts miniature circuit breaker 2DK cathode move it is tactile
Point, intermediate relay J1 normally opened contacts other end connection high pressure vacuum relay ZK1 and diode D4 cathode, diode D4 anodes
Resistance 4R is connected, the other end of resistance 4R connects intermediate relay J1 normally opened contacts with the other end of high pressure vacuum relay ZK1,
The intermediate relay J2 normally opened contacts other end connects high pressure vacuum relay ZK2 and diode D5 cathode, and diode D5 anodes connect
The other end of connecting resistance 5R, resistance 5R connect intermediate relay J2 normally opened contacts with the other end of high pressure vacuum relay ZK2, in
Between the relay J1 normally opened contacts other end connect resistance R4, the other end of resistance R4 with the intermediate relay J2 normally opened contact other ends
Connect miniature circuit breaker 2DK cathode movable contacts.
4. high-voltage motor insulated detection device according to claim 1, it is characterized in that the head connection of high-voltage isolator GLQ moved ends is high
It presses the normally opened static contacts of low-vacuum load-tripping device ZK1 and on the line of the contact A of the normally opened static contacts of high pressure vacuum relay ZK2, electric current is mutual
Sensor CT0 is sleeved on high-voltage isolator GLQ moving contacts static contact normally opened with low-vacuum load-tripping device ZK1 and high pressure vacuum relay ZK2 is normal
On the line for opening static contact contact A, the normally opened moving contact connection digital high-voltage megameter M Ω of high pressure vacuum relay ZK2, number
The word formula high tension megger M Ω other ends connect ground wire V0, the normally opened moving contact connection ground wire V0 of high pressure vacuum relay ZK1, electric current
The secondary winding lead-out wire of mutual inductor CT0 connects the both ends of relay J0 respectively, when high pressure vacuum relay ZK1 normally open contacts and
High pressure vacuum relay ZK2 normally open contacts form discharge loop when all connecting, and starting preceding switch cabinet to detection discharges, and finds
Electric current relay J0 normally closed interlocks can be cut off measure loop and stop detection or high pressure vacuum relay during switchgear faulty hidden danger
ZK1 normally open contacts form the measure loop of high-voltage motor insulated resistance RjY1 after disconnecting, carry out high-voltage motor insulated resistance RjY1
Detection.
5. high-voltage motor insulated detection device according to claim 1 is the main electricity of Insulation monitoring of high-voltage isolator control
Road be will in high-voltage motor insulated detection device with monopole vacuum contactor KM1~KMn control use instead high-voltage isolator GLQ1~
GLQn is controlled, it is characterized in that the main circuit of high-voltage isolator control is by n platform high-voltage isolators GLQ1~GLQn, high-voltage isolator
GLQ, high pressure vacuum relay ZK1, high pressure vacuum relay ZK2, digital high-voltage megameter M Ω, zero sequence current mutual inductor
CT01~CT0n, electric current relay J0 are formed, and n platforms refer to the number of units of corresponding tested motor M1~Mn, high voltage power supply 6~10KV masters
Circuit passes through vacuum circuit breaker QF1 and zero sequence current mutual inductor CT01 to motor M1, and high-voltage motor insulated resistance RjY1 refers to electricity
Switchgear including machine three-phase windings and its connected cable and vacuum circuit breaker QF1 lower ends is to total insulated electro of ground wire V0
RjY1 is hindered, what three-phase windings were connected to, relatively insulation resistance is exactly total insulation resistance for detection one, and guide line A1 is connected to very
Empty circuit breaker Q F1 lower ends pass through the normally opened static contact of lower section zero sequence current mutual inductor CT01 connection high-voltage isolators GLQ1, high
Voltage source 6~10KV main circuits another way is by vacuum circuit breaker QFn and zero sequence current mutual inductor CT0n to motor Mn, high-voltage electricity
Machine insulation resistance RjYn refers to that the switch including motor three-phase windings and its connected cable and vacuum circuit breaker QFn lower ends is set
Standby total insulation resistance RjYn to ground wire V0, guide line An are connected to vacuum circuit breaker QFn lower ends across lower section zero-sequence current
The normally opened static contact of mutual inductor CT0n connection high-voltage isolators GLQn, guide line A0 is by the normally opened moving contact of high-voltage isolator GLQ1
It is connected with the normally opened moving contact of high-voltage isolator GLQn and connects high-voltage isolator GLQ static contacts, high-voltage isolator GLQ is moved
Contact connects the line of the normally opened static contacts of high pressure vacuum relay ZK1 and the contact A of the normally opened static contacts of high pressure vacuum relay ZK2
On, Current Transmit 0 is sleeved on high-voltage isolator GLQ moving contacts static contact normally opened with high pressure vacuum relay ZK1 and high pressure is true
On the line of the empty normally opened static contact contact A of relay ZK2, the normally opened moving contact of high pressure vacuum relay ZK2 connects digital height
Megameter M Ω are pressed, the normally opened moving contact of the digital high-voltage megameter M Ω other ends connection ground wire V0, high pressure vacuum relay ZK1 connects
V0 is grounded, the secondary winding lead-out wire of Current Transmit 0 connects the both ends of relay J0 respectively, high-voltage isolator control
DC control circuit is by miniature circuit breaker 2DK, high-voltage isolator GLQ1~GLQn, high-voltage isolator GLQ, high pressure vacuum relay
ZK1, high pressure vacuum relay ZK2, indicator light XD2 compositions, the anode connection miniature circuit breaker 2DK anode stationary contacts of DC power supply DC
Point, the cathode connection miniature circuit breaker 2DK cathode stationary contacts of DC power supply DC, the connection of miniature circuit breaker 2DK anodes movable contact refer to
Show lamp XD2, intermediate relay KA normally opened contacts, intermediate relay KA1 normally opened contacts, intermediate relay KAn normally opened contacts, centre
Relay J1 normally opened contacts, intermediate relay J2 normally opened contacts, the other end connection dropping resistor R5 of indicator light XD2, decompression electricity
Hinder R5 the other end connection miniature circuit breaker 2DK cathode movable contacts, the intermediate relay KA normally opened contacts other end connect high pressure every
From device GLQ and diode D1 cathode, the other end of the connection of diode D1 anodes resistance 1R, resistance 1R and high-voltage isolator GLQ's
The other end connects intermediate relay KA normally opened contacts, the other end connection resistance R1 of intermediate relay KA normally opened contacts and it is intermediate after
Electric appliance KA normally-closed contacts, the other end of resistance R1 connect miniature circuit breaker 2DK with the other end of intermediate relay KA normally-closed contacts
Cathode movable contact, intermediate relay KA1 normally opened contacts other end connection high-voltage isolator GLQ1 and diode D2 cathode, diode
It is normally opened that the other end and the other end of high-voltage isolator GLQ1 of the connection of D2 anodes resistance 2R, resistance 2R connect intermediate relay KA1
Contact, the other end connection resistance R2 and intermediate relay KA1 normally-closed contacts of intermediate relay KA1 normally opened contacts, resistance R2's
The other end connects miniature circuit breaker 2DK cathode movable contacts, intermediate relay with the other end of intermediate relay KA1 normally-closed contacts
The KAn normally opened contacts other end connects high-voltage isolator GLQn and diode D3 cathode, diode D3 anodes connection resistance 3R, resistance
The other end of 3R connects intermediate relay KAn normally opened contacts with the other end of high-voltage isolator GLQn, and intermediate relay KAn is normally opened
The other end connection resistance R3 and intermediate relay KAn normally-closed contacts, the other end and intermediate relay KAn of resistance R3 of contact are normal
The other end connection miniature circuit breaker 2DK cathode movable contacts of closed contact, intermediate relay J1 normally opened contacts other end connection high pressure
Low-vacuum load-tripping device ZK1 and diode D4 cathode, diode D4 anodes connection resistance 4R, the other end and high pressure vacuum of resistance 4R after
The other end connection intermediate relay J1 normally opened contacts of electric appliance ZK1, intermediate relay J2 normally opened contacts other end connection high pressure are true
Empty relay ZK2 and diode D5 cathode, diode D5 anodes connection resistance 5R, the other end of resistance 5R and high pressure vacuum relay
The other end connection intermediate relay J2 normally opened contacts of device ZK2, the intermediate relay J1 normally opened contacts other end and intermediate relay
The J2 normally opened contacts other end connects resistance R4, the other end connection miniature circuit breaker 2DK cathode movable contacts of resistance R4.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410783206.6A CN104483605B (en) | 2014-12-08 | 2014-12-08 | High-voltage motor insulated detection device |
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| CN201410783206.6A CN104483605B (en) | 2014-12-08 | 2014-12-08 | High-voltage motor insulated detection device |
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| CN106443442A (en) * | 2016-09-06 | 2017-02-22 | 滕方剑 | Automatic insulation detection, automatic baking and automatic grounding integrated device for high-voltage motor |
| CN107024656A (en) * | 2017-06-09 | 2017-08-08 | 陈春帧 | Star（Y）The high-voltage motor insulated detection means of connection |
| CN110514999A (en) * | 2019-09-04 | 2019-11-29 | 青岛艾普智能仪器有限公司 | A kind of motor stator coil single-point damage testing method |
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