CN105807116B - Vehicular ontology dielectric loss and D.C. resistance no-load voltage ratio have load measurement automatic transfer equipment - Google Patents
Vehicular ontology dielectric loss and D.C. resistance no-load voltage ratio have load measurement automatic transfer equipment Download PDFInfo
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- CN105807116B CN105807116B CN201610305890.6A CN201610305890A CN105807116B CN 105807116 B CN105807116 B CN 105807116B CN 201610305890 A CN201610305890 A CN 201610305890A CN 105807116 B CN105807116 B CN 105807116B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
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Abstract
The invention discloses a kind of vehicular ontology dielectric loss and D.C. resistance no-load voltage ratio load measurement automatic transfer equipment, it is characterised in that: including the first conversion module, the second conversion module and third conversion module；First conversion module and the second conversion module are connect with third conversion module, the external dielectric loss measuring instrument of first conversion module, the external instrument for measuring DC resistance of second conversion module, no-load voltage ratio tester and loaded switch transition waveform tester, the third conversion module external transformer high-pressure side output, the output of transformer medium voltage side, step down side output and the side output of transformer balance.The present invention realizes dielectric loss, straight resistance, no-load voltage ratio, has load project to carry out disposable wiring concentration conversion output measurement, greatly reduces time of measuring, avoids the waste of human and material resources and financial resources.
Description
Technical field
The present invention relates to a kind of automatic transfer equipments, and in particular to a kind of vehicular ontology dielectric loss and D.C. resistance no-load voltage ratio
There is load measurement automatic transfer equipment.
Background technique
Instrument for measuring DC resistance, no-load voltage ratio test are generally configured on conventional high-potting electric combined test car at present
Instrument, loaded switch transition waveform tester, frequency conversion anti-interference dielectric loss measuring instrument.And the test philosophy of these types of tester is completely not
Together, and there is high voltages (dielectric loss measuring instrument) and low-voltage (no-load voltage ratio, which directly hinders, load etc.) switch operating, especially dielectric loss to survey
It tries instrument reversal connection measurement process and requires very high, core wire cannot externally have Leakage Current, and otherwise will seriously affect measurement data can
Reliability.With the big smooth expansion of the collection of state's net three five, has a power failure to substation and require constantly to improve, and transforming plant main transformer is core
Equipment, its repair time are most normal in routine, it is proposed that overhaul, therefore require to change to main transformer in electricity consumption low peak period
Depressor overhauling project is integrated, and proposes to dielectric loss, straight resistance, no-load voltage ratio, has the disposable wiring of the projects such as load progress to concentrate conversion defeated
It measures out, but this conversion equipment currently not yet.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of vehicular ontology dielectric loss and D.C. resistance no-load voltage ratio to have
Carry measurement automatic transfer equipment.
In order to achieve the above object, the technical scheme adopted by the invention is that:
Vehicular ontology dielectric loss and D.C. resistance no-load voltage ratio, which have, carries measurement automatic transfer equipment, including the first conversion module,
Second conversion module and third conversion module；
First conversion module and the second conversion module are connect with third conversion module, outside first conversion module
Connect dielectric loss measuring instrument, the external instrument for measuring DC resistance of second conversion module, no-load voltage ratio tester and loaded switch transition waveform
Tester, the third conversion module external transformer high-pressure side output, the output of transformer medium voltage side, step down side output
With the side output of transformer balance；
First conversion module is to realize that dielectric loss High voltage output is converted；
Second conversion module is to realize no-load voltage ratio measurement, have the switching for carrying measurement, direct current resistance m easurem ent；
The third conversion module to realize dielectric loss High voltage output respectively with no-load voltage ratio measurement, have load measurement, D.C. resistance
Switching between measurement.
First conversion module includes the first relay, the second relay and reversal connection sample resistance；
Described reversal connection sample resistance one end is connect with the movable contact of dielectric loss measuring instrument and the first relay respectively, the reversal connection
The sample resistance other end is connect by dielectric loss core wire with third conversion module, and second relay and reversal connection sample resistance are simultaneously
It connects, the movable contact connection of first relay is connect by dielectric loss shielding line with third conversion module, first relay
Opened point connect with dielectric loss core wire.
Second conversion module includes D.C. resistance high-pressure side switching module, D.C. resistance medium voltage side switching module, straight
Leakage resistance low-pressure side switching module, D.C. resistance balance side switching module, loaded switch measurement switching module and no-load voltage ratio measurement are cut
Change the mold block；
D.C. resistance high-pressure side switching module includes third relay and the 4th relay, the third relay
The connection of the current output terminal of opened point and instrument for measuring DC resistance, the movable contact and third conversion module of the third relay connect
It connects, the opened point of the 4th relay and the voltage input end of instrument for measuring DC resistance connect, and the 4th relay moves
Contact is connect with third conversion module；
The D.C. resistance medium voltage side switching module includes the 5th relay and the 6th relay, the 5th relay
The connection of the current output terminal of opened point and instrument for measuring DC resistance, the movable contact and third conversion module of the 5th relay connect
It connects, the opened point of the 6th relay and the voltage input end of instrument for measuring DC resistance connect, and the 6th relay moves
Contact is connect with third conversion module；
The D.C. resistance low-pressure side switching module includes the 7th relay and the 8th relay, the 7th relay
The connection of the current output terminal of opened point and instrument for measuring DC resistance, the movable contact and third conversion module of the 7th relay connect
It connects, the opened point of the 8th relay and the voltage input end of instrument for measuring DC resistance connect, and the 8th relay moves
Contact is connect with third conversion module；
The D.C. resistance balance side switching module includes the 9th relay and the tenth relay, the 9th relay
The connection of the current output terminal of opened point and instrument for measuring DC resistance, the movable contact and third conversion module of the 9th relay connect
It connects, the opened point of the tenth relay and the voltage input end of instrument for measuring DC resistance connect, and the tenth relay moves
Contact is connect with third conversion module；
The loaded switch measurement switching module includes the 11st relay and the 12nd relay, the 11st relay
The opened point of device is connect with the current output terminal of loaded switch transition waveform tester, the movable contact of the 11st relay with
The connection of third conversion module, the opened point of the 12nd relay and the voltage input end of loaded switch transition waveform tester
Connection, the movable contact of the 12nd relay are connect with third conversion module；
The no-load voltage ratio measurement switching module includes the 13rd relay, the 14th relay, the 15th relay and the tenth
Six relays；The high-voltage output end of the opened point of 13rd relay and no-load voltage ratio tester connects, the described 13rd after
The movable contact of electric appliance is connect with third conversion module；The opened point of 14th relay and the high pressure of no-load voltage ratio tester are defeated
Outlet connection, the movable contact of the 14th relay are connect with third conversion module；15th relay it is normally opened
Point is connect with the low pressure, input end of no-load voltage ratio tester, and the movable contact of the 15th relay is connect with third conversion module；Institute
The low pressure, input end of the opened point and no-load voltage ratio tester of stating the 16th relay connects, the movable contact of the 16th relay
It is connect with third conversion module.
The third conversion module includes high-pressure side conversion module, medium voltage side conversion module, low-pressure side conversion module peace
Weigh side conversion module；
The high-pressure side conversion module includes the 17th relay, the 18th relay and the 19th relay；Described
The normally closed point of 17 relays is grounded, and the opened point ground connection of the 17th relay connect with dielectric loss shielding line, and the described tenth
The movable contact external transformer high-pressure side of seven relays exports；The normally closed point of 18th relay respectively with third relay
The movable contact connection of device, the 4th relay, the 11st relay, the 12nd relay and the 13rd relay, the described 18th
The opened point of relay is connect with dielectric loss core wire, the movable contact external transformer high-pressure side output of the 18th relay；Institute
State the normally closed point of the 19th relay respectively with third relay, the 4th relay, the 11st relay, the 12nd relay and
The movable contact of 13rd relay connects, and the opened point of the 19th relay is connect with dielectric loss core wire, the described 19th after
The movable contact external transformer high-pressure side of electric appliance exports；
Medium pressure side conversion module includes the 20th relay, the 21st relay and the 22nd relay；Institute
The normally closed point ground connection of the 20th relay is stated, the opened point ground connection of the 20th relay connect with dielectric loss shielding line, described
The movable contact external transformer medium voltage side of 20th relay exports；The normally closed point of 21st relay is respectively with the 5th
The movable contact of relay, the 6th relay and the 14th relay connects, the opened point and dielectric loss of the 21st relay
Core wire connection, the movable contact external transformer medium voltage side output of the 21st relay；22nd relay
Normally closed point is connect with the movable contact of the 5th relay, the 6th relay and the 14th relay respectively, the 22nd relay
The opened point of device is connect with dielectric loss core wire, the movable contact external transformer medium voltage side output of the 22nd relay；
The low-pressure side conversion module includes the 23rd relay, the 24th relay and the 25th relay；
The normally closed point of 23rd relay is grounded, and opened point ground connection and the dielectric loss shielding line of the 23rd relay connect
It connects, the movable contact external transformer low-pressure side output of the 23rd relay；The normally closed point of 24th relay
Connect respectively with the movable contact of the 7th relay, the 8th relay and the 16th relay, the 24th relay it is normal
It prescribes and is connect with dielectric loss core wire, the movable contact external transformer low-pressure side output of the 24th relay；Described 20th
The normally closed point of five relays is connect with the movable contact of the 7th relay, the 8th relay and the 16th relay respectively, and described
The opened point of 25 relays is connect with dielectric loss core wire, the movable contact external transformer low-pressure side of the 25th relay
Output；
The balance side conversion module includes the 26th relay, the 27th relay and the 28th relay；
The normally closed point of 26th relay is grounded, and opened point ground connection and the dielectric loss shielding line of the 26th relay connect
It connects, the movable contact external transformer balance side output of the 26th relay；The normally closed point of 27th relay
It is connect respectively with the movable contact of the 9th relay and the tenth relay, the opened point and dielectric loss core wire of the 27th relay
Connection, the movable contact external transformer balance side output of the 27th relay；28th relay it is normally closed
Point is connect with the movable contact of the 9th relay and the tenth relay respectively, the opened point and dielectric loss core of the 28th relay
Line connection, the movable contact external transformer balance side output of the 28th relay.
The third relay, the 4th relay, the 5th relay, the 6th relay, the 7th relay, the 8th relay
Device, the 9th relay, the tenth relay, the 11st relay, the 12nd relay, the 13rd relay, the 14th relay,
15th relay, the 16th relay, the 18th relay, the 19th relay, the 21st relay, the 22nd after
Electric appliance, the 24th relay, the 25th relay, the 27th relay and the 28th relay are four relays
Device.
The third relay, the 5th relay, the 7th relay, the 9th relay and the 11st relay are big electricity
Current relay；4th relay, the 6th relay, the 8th relay, the tenth relay and the 12nd relay are small
Electric current relay.
Advantageous effects of the invention: the present invention realizes dielectric loss, straight resistance, no-load voltage ratio, has load project to carry out disposably
Conversion output measurement is concentrated in wiring, is greatly reduced time of measuring, is avoided the waste of human and material resources and financial resources.
Detailed description of the invention
Fig. 1 is electrical schematic diagram of the invention.
Fig. 2 is the circuit diagram of the first conversion module.
Fig. 3 is the circuit diagram of D.C. resistance high-pressure side switching module.
Fig. 4 is the circuit diagram of D.C. resistance medium voltage side switching module.
Fig. 5 is the circuit diagram of D.C. resistance low-pressure side switching module.
Fig. 6 is the circuit diagram that D.C. resistance balances side switching module.
Fig. 7 is the circuit diagram of loaded switch measurement switching module.
Fig. 8 is the circuit diagram of no-load voltage ratio measurement switching module.
Fig. 9 is the circuit diagram of high-pressure side conversion module.
Figure 10 is the circuit diagram of medium voltage side conversion module.
Figure 11 is the circuit diagram of low-pressure side conversion module.
Figure 12 is the circuit diagram for balancing side conversion module.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Figure 1, vehicular ontology dielectric loss and D.C. resistance no-load voltage ratio have load measurement automatic transfer equipment, including first
Conversion module, the second conversion module and third conversion module.First conversion module and the second conversion module with third modulus of conversion
Block connection, the external dielectric loss measuring instrument of the first conversion module, the external instrument for measuring DC resistance of second conversion module, no-load voltage ratio test
Instrument and loaded switch transition waveform tester, third conversion module external transformer high-pressure side exports, transformer medium voltage side exports,
Step down side output and the side output of transformer balance.
First conversion module is the dielectric loss core wire switched in dielectric loss reversal connection measurement plate to realize that dielectric loss High voltage output is converted
With dielectric loss shielding line, structure is as shown in Fig. 2, include the first relay K1, the second relay K2 and reversal connection sample resistance.
Reversal connection sample resistance one end is connect with the movable contact of dielectric loss measuring instrument and the first relay K1 respectively, reversal connection sampling electricity
The resistance other end is connect by dielectric loss core wire with third conversion module, the second relay K2 be reversely connected sample resistance and connect, first after
The movable contact connection of electric appliance K1 is connect by dielectric loss shielding line with third conversion module, the opened point and dielectric loss of the first relay K1
Core wire connection.
First conversion module is to complete dielectric loss core wire and dielectric loss shielding line short circuit when dielectric loss positive connection measurement
Effect, guarantee that reversal connection sample resistance and inner lead seal in and just connect measurement, cause angular deviation, cause dielectric loss value exceeded etc.
Problem, when positive connection measures dielectric loss, the first relay K1 starting is attracted.
Second conversion module is to realize no-load voltage ratio measurement, have the switching for carrying measurement, direct current resistance m easurem ent, the second conversion module
It is to realize the output of no-load voltage ratio tester high side voltage and low-pressure side sampling, the output of loaded switch transition waveform tester electric current and electricity
Pressure sampling, the output of instrument for measuring DC resistance electric current and the output of voltage sampling switching.Each tester can be achieved in tested transformer
The same side (such as high-pressure side) switches over, and same module also may be implemented in tested transformer not ipsilateral (high-pressure side, low-pressure side
Deng) switch over work.
Second conversion module includes D.C. resistance high-pressure side switching module, D.C. resistance medium voltage side switching module, direct current
Hinder low-pressure side switching module, D.C. resistance balance side switching module, loaded switch measurement switching module and no-load voltage ratio measurement switching mould
Block.
As shown in figure 3, D.C. resistance high-pressure side switching module includes third relay K3 and the 4th relay K4, third after
The opened point of electric appliance K3 and the current output terminal of instrument for measuring DC resistance connect, and the movable contact and third of third relay K3 is converted
Module connection, the opened point of the 4th relay K4 and the voltage input end of instrument for measuring DC resistance connect, the 4th relay K4's
Movable contact is connect with third conversion module.
As shown in figure 4, D.C. resistance medium voltage side switching module include the 5th relay K5 and the 6th relay K6, the 5th after
The opened point of electric appliance K5 and the current output terminal of instrument for measuring DC resistance connect, and the movable contact and third of the 5th relay K5 is converted
Module connection, the opened point of the 6th relay K6 and the voltage input end of instrument for measuring DC resistance connect, the 6th relay K6's
Movable contact is connect with third conversion module.
As shown in figure 5, D.C. resistance low-pressure side switching module include the 7th relay K7 and the 8th relay K8, the 7th after
The opened point of electric appliance K7 and the current output terminal of instrument for measuring DC resistance connect, and the movable contact and third of the 7th relay K7 is converted
Module connection, the opened point of the 8th relay K8 and the voltage input end of instrument for measuring DC resistance connect, the 8th relay K8's
Movable contact is connect with third conversion module.
As shown in fig. 6, D.C. resistance balance side switching module include the 9th relay K9 and the tenth relay K10, the 9th
The opened point of relay K9 and the current output terminal of instrument for measuring DC resistance connect, and the movable contact and third of the 9th relay K9 turns
Block connection is changed the mold, the opened point of the tenth relay K10 and the voltage input end of instrument for measuring DC resistance connect, the tenth relay
The movable contact of K10 is connect with third conversion module.
As shown in fig. 7, loaded switch measurement switching module includes the 11st relay K11 and the 12nd relay K12, the
The opened point of 11 relay K11 is connect with the current output terminal of loaded switch transition waveform tester, the 11st relay K11
Movable contact connect with third conversion module, the opened point of the 12nd relay K12 and loaded switch transition waveform tester
Voltage input end connection, the movable contact of the 12nd relay K12 are connect with third conversion module.
As shown in figure 8, no-load voltage ratio measurement switching module includes the 13rd relay K13, the 14th relay K14, the 15th
Relay K15 and the 16th relay K16；The opened point of 13rd relay K13 and the high-voltage output end of no-load voltage ratio tester
Connection, the movable contact of the 13rd relay K13 are connect with third conversion module；The opened point and change of 14th relay K14
High-voltage output end than tester connects, and the movable contact of the 14th relay K14 is connect with third conversion module；15th relay
The opened point of device K15 and the low pressure, input end of no-load voltage ratio tester connect, and the movable contact and third of the 15th relay K15 is converted
Module connection；The opened point of 16th relay K16 and the low pressure, input end of no-load voltage ratio tester connect, the 16th relay
The movable contact of K16 is connect with third conversion module.
Above-mentioned third relay K3, the 5th relay K5, the 7th relay K7, the 9th relay K9 and the 11st relay
K11 is high-current relay；4th relay K4, the 6th relay K6, the 8th relay K8, the tenth relay K10 and
12 relay K12 are low current relay.
Third conversion module to realize dielectric loss High voltage output respectively with no-load voltage ratio measurement, have load measurement, direct current resistance m easurem ent
Between switching.The switching of high voltage and low-voltage may be implemented in it, also may be implemented by transformer the same side in different measurements
Switch operating under mode also may be implemented subject transformer and meet short circuit function according to measurement demand under different measurement methods
Can, the winding of each side is shorted automatically when such as dielectric loss measurement, has load that low-pressure side or medium voltage side are shorted when measuring, prevents
Counter electromotive force etc..
Third conversion module includes high-pressure side conversion module, medium voltage side conversion module, low-pressure side conversion module and balance side
Conversion module.
As shown in figure 9, high-pressure side conversion module include the 17th relay K17, the 18th relay K18 and the 19th after
Electric appliance K19；The normally closed point of 17th relay K17 is grounded, and opened point ground connection and the dielectric loss shielding line of the 17th relay K17 connects
It connects, the movable contact external transformer high-pressure side output of the 17th relay K17；The normally closed point of 18th relay K18 respectively with
Third relay K3, the 4th relay K4, the 11st relay K11, the 12nd relay K12 and the 13rd relay K13
Movable contact connection (contact label is consistent to link together, such as: the normally closed piont mark of the 18th relay K18 is " transformer
High-pressure side C phase -1 ", the normally closed point and movable contact label in third relay K3, the 11st relay K11, third relay K3
For being connected for " high voltage side of transformer C phase -1 "), the opened point of the 18th relay K18 is connect with dielectric loss core wire, the 18th relay
The movable contact external transformer high-pressure side of device K18 exports；The normally closed point of 19th relay K19 respectively with third relay K3,
Movable contact connection (the touching of 4th relay K4, the 11st relay K11, the 12nd relay K12 and the 13rd relay K13
Piont mark is consistent to link together), the opened point of the 19th relay K19 is connect with dielectric loss core wire, the 19th relay K19
Movable contact external transformer high-pressure side output.
As shown in Figure 10, medium voltage side conversion module includes the 20th relay K20, the 21st relay K21 and second
12 relay K22；The normally closed point of 20th relay K20 is grounded, opened point ground connection and the dielectric loss screen of the 20th relay K20
Cover line connection, the movable contact external transformer medium voltage side output of the 20th relay K20；21st relay K21's is normally closed
Point connect that (contact label is consistent with the movable contact of the 5th relay K5, the 6th relay K6 and the 14th relay K14 respectively
Link together), the opened point of the 21st relay K21 is connect with dielectric loss core wire, the movable contact of the 21st relay K21
The output of external transformer medium voltage side；The normally closed point of 22nd relay K22 respectively with the 5th relay K5, the 6th relay K6
(contact label is consistent to link together) is connected with the movable contact of the 14th relay K14, the 22nd relay K22's is normal
It prescribes and is connect with dielectric loss core wire, the movable contact external transformer medium voltage side output of the 22nd relay K22.
As shown in figure 11, low-pressure side conversion module includes the 23rd relay K23, the 24th relay K24 and the
25 relay K25；The normally closed point of 23rd relay K23 is grounded, the opened point ground connection of the 23rd relay K23 with
The connection of dielectric loss shielding line, the movable contact external transformer low-pressure side output of the 23rd relay K23；24th relay
The normally closed point of K24 connect (contact with the movable contact of the 7th relay K7, the 8th relay K8 and the 16th relay K16 respectively
Label is consistent to link together), the opened point of the 24th relay K24 is connect with dielectric loss core wire, the 24th relay
The movable contact external transformer low-pressure side of K24 exports；The normally closed point of 25th relay K25 respectively with the 7th relay K7,
The movable contact of 8th relay K8 and the 16th relay K16 connects (contact label is consistent to link together), and the 25th
The opened point of relay K25 is connect with dielectric loss core wire, and the movable contact external transformer low-pressure side of the 25th relay K25 is defeated
Out.
As shown in figure 12, balance side conversion module includes the 26th relay K26, the 27th relay K27 and the
28 relay K28；The normally closed point of 26th relay K26 is grounded, the opened point ground connection of the 26th relay K26 with
The connection of dielectric loss shielding line, the movable contact external transformer balance side output of the 26th relay K26；27th relay
The normally closed point of K27 connect that (contact label is consistent to be connected to the movable contact of the 9th relay K9 and the tenth relay K10 respectively
Together), the opened point of the 27th relay K27 is connect with dielectric loss core wire, the external change of movable contact of the 27th relay K27
Depressor balances side output；The normally closed point of 28th relay K28 is dynamic with the 9th relay K9 and the tenth relay K10 respectively
Contact connects (contact label is consistent to link together), and the opened point of the 28th relay K28 is connect with dielectric loss core wire, the
The movable contact external transformer balance side output of 28 relay K28.
Above-mentioned third relay K3, the 4th relay K4, the 5th relay K5, the 6th relay K6, the 7th relay K7,
8th relay K8, the 9th relay K9, the tenth relay K10, the 11st relay K11, the 12nd relay K12, the tenth
Three relay K13, the 14th relay K14, the 15th relay K15, the 16th relay K16, the 18th relay K18,
19th relay K19, the 21st relay K21, the 22nd relay K22, the 24th relay K24, the 20th
Five relay K25, the 27th relay K27 and the 28th relay K28 are four relays.
The electric shock of above-mentioned apparatus is all made of metallic shield measure, prevents external Leakage Current and external interference signals from entering.
Device can automatically switch output function according to transformer measure the item difference, and disposable wiring is completed to main transformer D.C. resistance, become
Than, the measurement of loaded switch waveform, ontology dielectric loss project, test period is greatly reduced.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (6)
1. vehicular ontology dielectric loss and D.C. resistance no-load voltage ratio have load measurement automatic transfer equipment, it is characterised in that: including first
Conversion module, the second conversion module and third conversion module；
First conversion module and the second conversion module are connect with third conversion module, external Jie of the first conversion module
Damage tester, the external instrument for measuring DC resistance of second conversion module, no-load voltage ratio tester and loaded switch transition waveform testing
Instrument, the third conversion module external transformer high-pressure side output, the output of transformer medium voltage side, step down side output and change
Depressor balances side output；
First conversion module is to realize that dielectric loss High voltage output is converted；
Second conversion module is to realize no-load voltage ratio measurement, have the switching for carrying measurement, direct current resistance m easurem ent；
The third conversion module to realize dielectric loss High voltage output respectively with no-load voltage ratio measurement, have load measurement, direct current resistance m easurem ent
Between switching.
2. vehicular ontology dielectric loss according to claim 1 and D.C. resistance no-load voltage ratio have load measurement automatic transfer equipment,
It is characterized by: first conversion module includes the first relay, the second relay and reversal connection sample resistance；
Described reversal connection sample resistance one end is connect with the movable contact of dielectric loss measuring instrument and the first relay respectively, the reversal connection sampling
The resistance other end is connect by dielectric loss core wire with third conversion module, second relay be reversely connected sample resistance and connect, institute
The movable contact connection for stating the first relay is connect by dielectric loss shielding line with third conversion module, first relay it is normally opened
Point is connect with dielectric loss core wire.
3. vehicular ontology dielectric loss according to claim 2 and D.C. resistance no-load voltage ratio have load measurement automatic transfer equipment,
It is characterized by: second conversion module include D.C. resistance high-pressure side switching module, D.C. resistance medium voltage side switching module,
D.C. resistance low-pressure side switching module, D.C. resistance balance side switching module, loaded switch measurement switching module and no-load voltage ratio measurement
Switching module；
D.C. resistance high-pressure side switching module includes third relay and the 4th relay, the third relay it is normally opened
Point is connect with the current output terminal of instrument for measuring DC resistance, and the movable contact of the third relay is connect with third conversion module,
The opened point of 4th relay and the voltage input end of instrument for measuring DC resistance connect, the movable contact of the 4th relay
It is connect with third conversion module；
The D.C. resistance medium voltage side switching module include the 5th relay and the 6th relay, the 5th relay it is normally opened
Point is connect with the current output terminal of instrument for measuring DC resistance, and the movable contact of the 5th relay is connect with third conversion module,
The opened point of 6th relay and the voltage input end of instrument for measuring DC resistance connect, the movable contact of the 6th relay
It is connect with third conversion module；
The D.C. resistance low-pressure side switching module include the 7th relay and the 8th relay, the 7th relay it is normally opened
Point is connect with the current output terminal of instrument for measuring DC resistance, and the movable contact of the 7th relay is connect with third conversion module,
The opened point of 8th relay and the voltage input end of instrument for measuring DC resistance connect, the movable contact of the 8th relay
It is connect with third conversion module；
D.C. resistance balance side switching module includes the 9th relay and the tenth relay, the 9th relay it is normally opened
Point is connect with the current output terminal of instrument for measuring DC resistance, and the movable contact of the 9th relay is connect with third conversion module,
The opened point of tenth relay and the voltage input end of instrument for measuring DC resistance connect, the movable contact of the tenth relay
It is connect with third conversion module；
The loaded switch measurement switching module includes the 11st relay and the 12nd relay, the 11st relay
Opened point is connect with the current output terminal of loaded switch transition waveform tester, the movable contact and third of the 11st relay
Conversion module connection, the opened point of the 12nd relay and the voltage input end of loaded switch transition waveform tester connect
It connects, the movable contact of the 12nd relay is connect with third conversion module；
The no-load voltage ratio measurement switching module include the 13rd relay, the 14th relay, the 15th relay and the 16th after
Electric appliance；The opened point of 13rd relay and the high-voltage output end of no-load voltage ratio tester connect, the 13rd relay
Movable contact is connect with third conversion module；The opened point of 14th relay and the high-voltage output end of no-load voltage ratio tester connect
It connects, the movable contact of the 14th relay is connect with third conversion module；The opened point and no-load voltage ratio of 15th relay
The low pressure, input end of tester connects, and the movable contact of the 15th relay is connect with third conversion module；Described 16th
The opened point of relay and the low pressure, input end of no-load voltage ratio tester connect, and the movable contact and third of the 16th relay are converted
Module connection.
4. vehicular ontology dielectric loss according to claim 3 and D.C. resistance no-load voltage ratio have load measurement automatic transfer equipment,
It is characterized by: the third conversion module include high-pressure side conversion module, medium voltage side conversion module, low-pressure side conversion module and
Balance side conversion module；
The high-pressure side conversion module includes the 17th relay, the 18th relay and the 19th relay；Described 17th
The normally closed point of relay is grounded, and the opened point ground connection of the 17th relay connect with dielectric loss shielding line, the described 17th after
The movable contact external transformer high-pressure side of electric appliance exports；The normally closed point of 18th relay respectively with third relay,
The movable contact connection of four relays, the 11st relay, the 12nd relay and the 13rd relay, the 18th relay
Opened point connect with dielectric loss core wire, the output of the movable contact external transformer high-pressure side of the 18th relay；Described tenth
The normally closed point of nine relays respectively with third relay, the 4th relay, the 11st relay, the 12nd relay and the 13rd
The movable contact of relay connects, and the opened point of the 19th relay is connect with dielectric loss core wire, the 19th relay
The output of movable contact external transformer high-pressure side；
Medium pressure side conversion module includes the 20th relay, the 21st relay and the 22nd relay；Described
The normally closed point of 20 relays is grounded, and the opened point ground connection of the 20th relay connect with dielectric loss shielding line, and described second
The movable contact external transformer medium voltage side of ten relays exports；The normally closed point of 21st relay respectively with the 5th relay
The movable contact of device, the 6th relay and the 14th relay connects, the opened point and dielectric loss core wire of the 21st relay
Connection, the movable contact external transformer medium voltage side output of the 21st relay；22nd relay it is normally closed
Point is connect with the movable contact of the 5th relay, the 6th relay and the 14th relay respectively, the 22nd relay
Opened point is connect with dielectric loss core wire, the movable contact external transformer medium voltage side output of the 22nd relay；
The low-pressure side conversion module includes the 23rd relay, the 24th relay and the 25th relay；It is described
The normally closed point of 23rd relay is grounded, and the opened point ground connection of the 23rd relay connect with dielectric loss shielding line, institute
State the movable contact external transformer low-pressure side output of the 23rd relay；The normally closed point of 24th relay respectively with
The movable contact of 7th relay, the 8th relay and the 16th relay connects, the opened point of the 24th relay with
The connection of dielectric loss core wire, the movable contact external transformer low-pressure side output of the 24th relay；25th relay
The normally closed point of device is connect with the movable contact of the 7th relay, the 8th relay and the 16th relay respectively, and the described 25th
The opened point of relay is connect with dielectric loss core wire, the movable contact external transformer low-pressure side output of the 25th relay；
The balance side conversion module includes the 26th relay, the 27th relay and the 28th relay；It is described
The normally closed point of 26th relay is grounded, and the opened point ground connection of the 26th relay connect with dielectric loss shielding line, institute
State the movable contact external transformer balance side output of the 26th relay；The normally closed point of 27th relay respectively with
The connection of the movable contact of 9th relay and the tenth relay, the opened point of the 27th relay are connect with dielectric loss core wire,
The movable contact external transformer balance side output of 27th relay；The normally closed point of 28th relay is distinguished
It is connect with the movable contact of the 9th relay and the tenth relay, the opened point and dielectric loss core wire of the 28th relay connect
It connects, the movable contact external transformer balance side output of the 28th relay.
5. vehicular ontology dielectric loss according to claim 4 and D.C. resistance no-load voltage ratio have load measurement automatic transfer equipment,
It is characterized by: the third relay, the 4th relay, the 5th relay, the 6th relay, the 7th relay, the 8th after
Electric appliance, the 9th relay, the tenth relay, the 11st relay, the 12nd relay, the 13rd relay, the 14th relay
Device, the 15th relay, the 16th relay, the 18th relay, the 19th relay, the 21st relay, the 20th
Two relays, the 24th relay, the 25th relay, the 27th relay and the 28th relay are four
Relay.
6. vehicular ontology dielectric loss according to claim 5 and D.C. resistance no-load voltage ratio have load measurement automatic transfer equipment,
It is characterized by: the third relay, the 5th relay, the 7th relay, the 9th relay and the 11st relay are
High-current relay；4th relay, the 6th relay, the 8th relay, the tenth relay and the 12nd relay are equal
For low current relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610305890.6A CN105807116B (en) | 2016-05-10 | 2016-05-10 | Vehicular ontology dielectric loss and D.C. resistance no-load voltage ratio have load measurement automatic transfer equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610305890.6A CN105807116B (en) | 2016-05-10 | 2016-05-10 | Vehicular ontology dielectric loss and D.C. resistance no-load voltage ratio have load measurement automatic transfer equipment |
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| CN105807116A CN105807116A (en) | 2016-07-27 |
| CN105807116B true CN105807116B (en) | 2019-03-19 |
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| CN108896948B (en) * | 2018-06-20 | 2023-03-21 | 成都理工大学 | Transformation ratio measuring device and method for cascade test transformation equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB854366A (en) * | 1956-03-19 | 1960-11-16 | Electr & Allied Ind Res Ass | Improvements relating to electrical measuring apparatus |
| CN103698621A (en) * | 2013-09-05 | 2014-04-02 | 国家电网公司 | Vehicle-mounted transformer comprehensive test system |
| CN203732668U (en) * | 2014-03-11 | 2014-07-23 | 河北省电力建设调整试验所 | Parameter testing device for power transformer |
| CN104215835A (en) * | 2014-09-18 | 2014-12-17 | 杭州西湖电子研究所 | Automatic measuring system for main transformer |
| CN205594052U (en) * | 2016-05-10 | 2016-09-21 | 国网江苏省电力公司电力科学研究院 | Vehicular body jie decreases and direct current resistance transformation ratio has measurement of carrying an automatic switching device |
-
2016
- 2016-05-10 CN CN201610305890.6A patent/CN105807116B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB854366A (en) * | 1956-03-19 | 1960-11-16 | Electr & Allied Ind Res Ass | Improvements relating to electrical measuring apparatus |
| CN103698621A (en) * | 2013-09-05 | 2014-04-02 | 国家电网公司 | Vehicle-mounted transformer comprehensive test system |
| CN203732668U (en) * | 2014-03-11 | 2014-07-23 | 河北省电力建设调整试验所 | Parameter testing device for power transformer |
| CN104215835A (en) * | 2014-09-18 | 2014-12-17 | 杭州西湖电子研究所 | Automatic measuring system for main transformer |
| CN205594052U (en) * | 2016-05-10 | 2016-09-21 | 国网江苏省电力公司电力科学研究院 | Vehicular body jie decreases and direct current resistance transformation ratio has measurement of carrying an automatic switching device |
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