CN107994575A - A kind of high-voltage circuitbreaker secondary circuit - Google Patents

A kind of high-voltage circuitbreaker secondary circuit Download PDF

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Publication number
CN107994575A
CN107994575A CN201711411815.9A CN201711411815A CN107994575A CN 107994575 A CN107994575 A CN 107994575A CN 201711411815 A CN201711411815 A CN 201711411815A CN 107994575 A CN107994575 A CN 107994575A
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China
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phase
contact
auxiliary switches
branch
parallel
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CN201711411815.9A
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CN107994575B (en
Inventor
刘伟
王传川
南振乐
贺平军
周静
杨政
朱璿
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China XD Electric Co Ltd
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China XD Electric Co Ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/36—Arrangements for transfer of electric power between ac networks via a high-tension dc link
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

The present invention provides a kind of high-voltage circuitbreaker secondary circuit, can solve the problems, such as after two double-fracture breakers series connection not homopolarity and with interpolar synchronism, and realizes that secondary control loop is anti-jump and non-whole phase protection function.Including separating brake, combined floodgate, anti-jump protection and four circuits of non-whole phase protection；Sub-gate circuit includes the parallel branch by A, B and C phase switching winding branch of series connection, and low oil pressure separating brake locking auxiliary relay normally-closed contact and SF6 low pressure gas locking auxiliary relay normally-closed contacts；Closing circuit includes the parallel branch by A, B and C phase closing coil branch of series connection, and low oil pressure closing locking auxiliary relay normally-closed contact and SF6 low pressure gas locking auxiliary relay normally-closed contacts；Anti-jump loop includes A, B and C phase anti-jump loop；Non-whole phase protection circuit includes three branches in parallel, is the auxiliary contact branch and non-three phase time relay 47T1 of series connection respectively, the non-three phase time relay 47TX1 and 47TY1.

Description

A kind of high-voltage circuitbreaker secondary circuit
Technical field
The present invention relates to the protection of breaker linear quadratic control, is specially a kind of high-voltage circuitbreaker secondary circuit.
Background technology
With the high speed development of HVDC transmission system, the exchange side of DC transmission system needs switching filters capacitance The wave filter group breaker of device group.The recovery voltage of capacity current is cut-off for 1100kV level filters group breaker Height, current solution both domestic and external are with the wave filter group open circuit that the breaker series connection of two double-fractures is four fractures Device.Different interpolar synchronisms are needed to solve the problems, such as after two double-fracture breakers series connection therewith and with interpolar synchronism, and need Ensure that breaker secondary control loop is anti-jump and the function of non-whole phase protection.
The content of the invention
For problems of the prior art, the present invention provides a kind of high-voltage circuitbreaker secondary circuit, can solve two Different interpolar synchronisms and the problem of with interpolar synchronism after the series connection of a double-fracture breaker, and realize that breaker linear quadratic control returns Road is anti-jump and the function of non-whole phase protection.
The present invention is to be achieved through the following technical solutions：
A kind of high-voltage circuitbreaker secondary circuit, including be connected on circuitbreaker control power supply sub-gate circuit, closing circuit, Anti-jump protective loop and non-whole phase protection circuit；
The sub-gate circuit is including series connection by A phase switching windings branch, B phase switching winding branches and C phase separating brake lines Enclose the parallel branch that branch circuit parallel connection is formed, and low oil pressure separating brake locking auxiliary relay normally-closed contact and SF6 low pressure gas lockings Auxiliary relay normally-closed contact；A phase switching windings branch, B phase switching winding branches and C phase switching winding branches connect disconnected respectively Road device separating brake control interface；
The closing circuit is including series connection by A phase closing coils branch, B phase closing coil branches and C phase closing lines Enclose the parallel branch that branch circuit parallel connection is formed, and low oil pressure closing locking auxiliary relay normally-closed contact and SF6 low pressure gas lockings Auxiliary relay normally-closed contact；A phase closing coils branch, B phase closing coil branches and C phase closing coil branches connect disconnected respectively Road device shutting-brake control interface；
The anti-jump loop includes correspond to that closing circuit sets prevents with the A phases of A phase closing coil branch circuit parallel connections respectively Rebound road, the anti-rebound of C phases with the B phases anti-jump loop of B phase closing coil branch circuit parallel connections and with C phase closing coil branch circuit parallel connections Road；
The non-whole phase protection circuit includes three branches in parallel, the first branch include series connection auxiliary contact branch and Non-three phase time relay 47T1, the second branch include non-three phase time relay 47TX1, and the 3rd branch includes the non-three phase time Relay 47TY1；Non-three phase time relay 47TX1 and non-three phase time relay 47TY1 and the non-three phase time relay 47T1 coordinates.
Preferably, the A phase switching windings branch includes the A1 phase auxiliary switches normal opened contact 1 of series connection, A2 phases aid in Switch normal opened contact 1, A1 phases switching winding and A2 phase switching windings；The normally opened of A phase non-whole phase protection time relays 47TX1 touches After the A1 phase auxiliary switches normal opened contact 2 and A2 phase auxiliary switches normal opened contact 2 that point is coupled with parallel connection are connected, with the A1 phases connected Auxiliary switch normal opened contact 1 and A2 phase auxiliary switches normal opened contact 1 are in parallel；
It is normally opened that the B phase switching windings branch includes the B1 phase auxiliary switches normal opened contact 1 of series connection, B2 phase auxiliary switches Contact 1, B1 phases switching winding and B2 phase switching windings；The normally opened contact of B phase non-whole phase protection time relays 47TX1 with it is in parallel After B1 phase auxiliary switches normal opened contact 2 and B2 phase auxiliary switches normal opened contact 2 series connection of connection, with the B1 phase auxiliary switches connected Normal opened contact 1 and B2 phase auxiliary switches normal opened contact 1 are in parallel；
It is normally opened that the C phase switching windings branch includes the C1 phase auxiliary switches normal opened contact 1 of series connection, C2 phase auxiliary switches Contact 1, C1 phases switching winding and C2 phase switching windings；The normally opened contact of C phase non-whole phase protection time relays 47TX1 with it is in parallel After C1 phase auxiliary switches normal opened contact 2 and C2 phase auxiliary switches normal opened contact 2 series connection of connection, with the C1 phase auxiliary switches connected Normal opened contact 1 and C2 phase auxiliary switches normal opened contact 1 are in parallel.
Preferably, the A phase closing coils branch includes normally-closed contact, the A1 of the A phase anti-trip relay 52YA of series connection Phase auxiliary switch normally closed contact 1, A1 phases closing coil, A2 phase auxiliary switches normally closed contact 1 and A2 phase closing coils；
The B phase closing coils branch includes the normally-closed contact of the B phase anti-trip relay 52YB of series connection, B1 phases aid in out Close normally closed contact 1, B1 phases closing coil, B2 phase auxiliary switches normally closed contact 1 and B2 phase closing coils；
The C phase closing coils branch includes the normally-closed contact of the C phase anti-trip relay 52YC of series connection, C1 phases aid in out Close normally closed contact 1, C1 phases closing coil, C2 phase auxiliary switches normally closed contact 1 and C2 phase closing coils.
Preferably, A phases anti-jump loop includes two A phase auxiliary switches normal opened contacts 4 and A phase anti-trip relay in parallel 52YA connects；Described two A phase auxiliary switches normal opened contacts 4 in parallel are in parallel with the normally opened contact of A phase anti-trip relay 52YA；
The B phase auxiliary switches normal opened contact 4 and B phase anti-trip relay 52YB that B phases anti-jump loop includes another two parallel connection goes here and there Connection；Described two B phase auxiliary switches normal opened contacts 4 in parallel are in parallel with the normally opened contact of B phase anti-trip relay 52YB；
The C phase auxiliary switches normal opened contact 4 and C phase anti-trip relay 52YC that C phases anti-jump loop includes another two parallel connection goes here and there Connection；Described two C phase auxiliary switches normal opened contacts 4 in parallel are in parallel with the normally opened contact of C phase anti-trip relay 52YC.
Preferably, the auxiliary contact branch includes the auxiliary switch normal opened contact that is connected in series and auxiliary switch is normally closed connects Point parallel branch；
The auxiliary switch normal opened contact is normally opened by 3, A2 phase auxiliary switches of an A1 phase auxiliary switches normal opened contact 3, the C1 phase auxiliary switches of B2 phase auxiliary switches normal opened contact of B1 phase auxiliary switches normal opened contact 3, one of contact 3, one are normal Open contact 3 and C2 phase auxiliary switches normal opened contact composition 3 in parallel；
The auxiliary switch normally closed contact is normally closed by 2, A2 phase auxiliary switches of an A1 phase auxiliary switches normally closed contact 2, the C1 phase auxiliary switches of B2 phase auxiliary switches normally closed contact of B1 phase auxiliary switches normally closed contact 2, one of contact 2, one are normal Close contact 2 and a C2 phase auxiliary switches normally closed contact 2 composition in parallel.
Preferably, auxiliary contact branch is connected by function pressing plate with non-three phase time relay 47T1.
Preferably, the second branch further includes the non-whole phase protection time relay connected with non-three phase time relay 47TX1 The delay switch of device 47T1 and the delay switch of non-whole phase protection time relay 47TY1；The non-whole phase protection time relay The normally opened contact 1 of the delay switch parallel connection non-whole phase protection time relay 47TX1 of 47T1.
Preferably, the 3rd branch further includes the non-three phase time relay connected with non-three phase time relay 47TY1 The normally opened contact 2 of 47TX1.
Compared with prior art, the present invention has technique effect beneficial below：
A kind of high-voltage circuitbreaker secondary circuit of the present invention, after switching signal provides, breaker closing, passes through closing coil The conversion of branch, connects sub-gate circuit and makes the actuating of relay in anti-jump protective loop, closing circuit is cut off, if closing a floodgate at this time Signal is not removed, and provides sub-gate signal, and closing coil branch disconnects.Anti-trip relay has been closed normal by anti-trip relay Contact self-sustaining to be opened, ensures that closing circuit is obstructed so that breaker will not close a floodgate again, until switching signal has been removed, it is anti-jump Relay 52Y resets, and after closing circuit is connected, could be closed a floodgate next time, prevents high-voltage circuitbreaker chattering from occurring.
After half-shadow or whole pole separating brake occurs in running high-voltage circuitbreaker, start non-whole phase protection circuit, make control electric Source voltage is applied directly in the sub-gate circuit of each half-shadow, avoids high-voltage circuitbreaker phase-deficient operation.
Further, coordinated by each non-three phase time relay of three branches in non-whole phase protection circuit, make control Supply voltage is applied directly to the sub-gate circuit of each half-shadow, and each half-shadow separating brake immediately, avoids high-voltage circuitbreaker phase-deficient operation.
Connected by the half-shadow switching winding of each phase switching winding in sub-gate circuit, and each phase closing line in closing circuit The half-shadow closing coil series connection of circle, realizes that high-voltage circuitbreaker difference interpolar separating brake synchronism is less than 3ms and the homopolarity separating brake same period Property be less than 2ms, different interpolar switching synchronizations are less than 4ms and are less than 3ms with interpolar switching synchronization.
Brief description of the drawings
Fig. 1 is the circuit diagram of separating brake control loop of the present invention.
Fig. 2 is the circuit diagram of shutting-brake control loop of the present invention.
Embodiment
With reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and It is not to limit.
A kind of high-voltage circuitbreaker secondary circuit of the present invention, including be connected on circuitbreaker control power supply sub-gate circuit, close Lock circuit, anti-jump protective loop and non-whole phase protection circuit.
As shown in Figure 1, high-voltage circuitbreaker secondary circuit includes sub-gate circuit, sub-gate circuit is in series with by A phase switching windings The parallel branch that branch, B phase switching windings branch, C phase switching windings branch circuit parallel connection are formed.
The A phase switching winding branches are in series with A1 phase auxiliary switches normal opened contact 1, A2 phase auxiliary switch normal opened contacts 1st, A1 phases switching winding, A2 phase switching windings；
The B phase switching winding branches are in series with B1 phase auxiliary switches normal opened contact 1, B2 phase auxiliary switch normal opened contacts 1st, B1 phases switching winding, B2 phase switching windings；
The C phase switching winding branches are in series with C1 phase auxiliary switches normal opened contact 1, C2 phase auxiliary switch normal opened contacts 1st, C1 phases switching winding, C2 phase switching windings.
The normally opened contact of A phase non-whole phase protection time relays 47TX1 is with preventing non-whole phase protection time relay 47TX1 After A1 the and A2 phase auxiliary switches normal opened contact 2 in parallel being coupled of two of malfunction is connected, connect with A phase switching winding branches two A1 and A2 phase auxiliary switches normal opened contact 1 it is in parallel.
The normally opened contact of B phase non-whole phase protection time relays 47TX1 is with preventing non-whole phase protection time relay 47TX1 B1 the and B2 phase auxiliary switches normal opened contact 2 in parallel being coupled of malfunction two connect after, connect with B phase switching winding branches two B1 and B2 phase auxiliary switches normal opened contact 1 it is in parallel.
The normally opened contact of C phase non-whole phase protection time relays 47TX1 is with preventing non-whole phase protection time relay 47TX1 After C1 the and C2 phase auxiliary switches normal opened contact 2 in parallel being coupled of two of malfunction is connected, connect with B phase switching winding branches two C1 and C2 phase auxiliary switches normal opened contact 1 it is in parallel.
When high-voltage circuitbreaker is in "on" position, high voltage breaker auxiliary switch normal opened contact 1 is connected, and receives sub-switching operation Signal, through high-voltage circuitbreaker per phase auxiliary switch normal opened contact 1, per phase switching winding, low oil pressure separating brake locking auxiliary relay 63HL1X normally-closed contacts, SF6 low pressure gas locking auxiliary relay 63GLX1 normally-closed contacts are high per phase switching winding adhesive action Voltage breaker separating brake, drives high voltage breaker auxiliary switch conversion, cuts off sub-gate circuit, connect closing circuit.
As shown in Fig. 2, high-voltage circuitbreaker secondary circuit includes closing circuit, closing circuit includes being in series with being closed a floodgate by A phases The parallel branch that path of winding, B phase closing coils branch, C phase closing coils branch circuit parallel connection are formed.
It is auxiliary that the A phase closing coil branches are in series with A1 phase auxiliary switches normally closed contact 1, A1 phases closing coil, A2 phases Help switch normally closed contact 1, A2 phase closing coils；
It is auxiliary that the B phase closing coil branches are in series with B1 phase auxiliary switches normally closed contact 1, B1 phases closing coil, B2 phases Help switch normally closed contact 1, B2 phase closing coils；
It is auxiliary that the C phase closing coil branches are in series with C1 phase auxiliary switches normally closed contact 1, C1 phases closing coil, C2 phases Help switch normally closed contact 1, C2 phase closing coils.
The A phases closing coil branch is also in series with the normally-closed contact of A phase anti-trip relay 52YA, the B phases closing line Circle branch is also in series with the normally-closed contact of B phase anti-trip relay 52YB, and it is anti-jump that the C phases closing coil branch is also in series with C phases The normally-closed contact of relay 52YC.
When high-voltage circuitbreaker is in gate-dividing state, closing operation signal is received, through every phase anti-trip relay normally-closed contact 52Y, high voltage breaker auxiliary switch normally closed contact 1, closing coil, low oil pressure closing locking auxiliary relay normally-closed contact 63HL2X, SF6 low pressure gas locking auxiliary relay 63GLX1 normally-closed contacts, connect combined floodgate, closing coil adhesive action, high pressure Breaker closing, drives high voltage breaker auxiliary switch conversion, cuts off closing circuit, connect sub-gate circuit.
As shown in Fig. 2, high-voltage circuitbreaker secondary circuit includes anti-jump protective loop, the anti-jump loop is prevented including A phases Rebound road, B phases anti-jump loop, C phase anti-jump loops.
The A phase auxiliary switches normal opened contact 4 and A phase anti-trip relay 52YA that A phases anti-jump loop includes another two parallel connection goes here and there Connection.Described two A phase auxiliary switches normal opened contacts 4 in parallel are in parallel with the normally opened contact of A phase anti-trip relay 52YA.
The B phase auxiliary switches normal opened contact 4 and B phase anti-trip relay 52YB that B phases anti-jump loop includes another two parallel connection goes here and there Connection.Described two B phase auxiliary switches normal opened contacts 4 in parallel are in parallel with the normally opened contact of B phase anti-trip relay 52YB.
The C phase auxiliary switches normal opened contact 4 and C phase anti-trip relay 52YC that C phases anti-jump loop includes another two parallel connection goes here and there Connection.Described two C phase auxiliary switches normal opened contacts 4 in parallel are in parallel with the normally opened contact of C phase anti-trip relay 52YC.
After switching signal provides, high voltage circuit breaker closing, high voltage breaker auxiliary switch normally closed contact 1 is changed, per mutually high The closure of voltage breaker auxiliary switch normal opened contact 4 connects sub-gate circuit and acts anti-trip relay 52Y, anti-trip relay 52Y Normally-closed contact disconnects, and cuts off closing circuit.If switching signal is not removed, sub-gate signal provides again, high-voltage circuitbreaker separating brake.It is anti-jump By the 52Y normally opened contact self-sustainings that have closed, the anti-trip relay 52Y normally-closed contacts in closing circuit disconnect relay 52Y, Closing circuit is obstructed, and high-voltage circuitbreaker will not close a floodgate again.Until having removed switching signal, anti-trip relay 52Y resets, and closes a floodgate After circuit is connected, it could be closed a floodgate next time.
As shown in Figure 1, high-voltage circuitbreaker secondary circuit includes non-whole phase protection circuit, non-whole phase protection circuit includes parallel connection Three branches, the first branch include series connection auxiliary contact branch and non-three phase time relay 47T1, the auxiliary contact Branch includes the auxiliary switch normal opened contact being connected in series and auxiliary switch normally closed contact parallel branch, the auxiliary switch are normally opened Contact is normal by an A1 phase auxiliary switches normal opened contact 3, A2 phase auxiliary switches normal opened contacts, 3, B1 phase auxiliary switches Drive 3, the C2 phase auxiliary switches of C1 phase auxiliary switches normal opened contact of B2 phase auxiliary switches normal opened contact 3, one of contact 3, one Normal opened contact 3 is in parallel to be formed, and the auxiliary switch normally closed contact is auxiliary by 2, A2 phases of an A1 phase auxiliary switches normally closed contact Help switch 2, C1 phases of B2 phase auxiliary switches normally closed contact of B1 phase auxiliary switches normally closed contact 2, one of normally closed contact 2, one 2, C2 phase auxiliary switches normally closed contacts of auxiliary switch normally closed contact 2 are in parallel to be formed.
The non-whole phase protection time relay 47T1 connects with by feature board TYB3 with auxiliary contact branch.
As shown in Figure 1, the second branch includes delay switch, the non-three phase of the non-whole phase protection time relay 47T1 of series connection The delay switch of guard time relay 47TY1 and the non-whole phase protection time for coordinating non-whole phase protection time relay 47TX1 The delay switch parallel connection non-whole phase protection time relay 47TX1's of relay 47TX1, non-whole phase protection time relay 47T1 Normally opened contact 1.
When 3rd branch includes the normally opened contact 2 and non-whole phase protection of the non-whole phase protection time relay 47TX1 of series connection Between relay 47TY1.
After after running high-voltage circuitbreaker occurs lacking half-shadow or the operation of whole pole, the change-over switch of its corresponding half-shadow will be made Auxiliary contact 2 or 3 switches, so that non-whole phase protection time relay 47T1 bands electrically activate, is delayed through of short duration, non-three phase After guard time relay delay switch 47T1 closures, non-whole phase protection time relay delay switch 47TY1 is still in closed form State, at this time non-whole phase protection time relay 47TX1 bands electrically activate, then non-whole phase protection time relay 47TX1 normally opened contacts 1st, 2 and A, B, C phase non-whole phase protection time relay 47TX1 normally opened contacts close, and non-whole phase protection relay 47TY1 is powered to be opened Dynamic, due to non-whole phase protection relay delay switch 47TY1 Time Delay Openings, control supply voltage is applied directly to the separating brake of each half-shadow Circuit, each half-shadow separating brake immediately, avoids high breaker phase-deficient operation.When non-three phase failure vanishes, the non-whole phase protection time Relay 47T1 and 47TX1 dead electricity, the involution of A, B, C phase non-whole phase protection time relay 47TX1 normally opened contacts are opened.

Claims (8)

  1. A kind of 1. high-voltage circuitbreaker secondary circuit, it is characterised in that including be connected on circuitbreaker control power supply sub-gate circuit, Closing circuit, anti-jump protective loop and non-whole phase protection circuit；
    The sub-gate circuit is including series connection by A phase switching windings branch, B phase switching winding branches and C phase switching winding branch The road parallel branch in parallel formed, and low oil pressure separating brake locking auxiliary relay normally-closed contact and SF6 low pressure gas locking auxiliary Relay normally closed contact；A phase switching windings branch, B phase switching winding branches and C phase switching winding branches connect breaker respectively Separating brake control interface；
    The closing circuit is including series connection by A phase closing coils branch, B phase closing coil branches and C phase closing coil branch The road parallel branch in parallel formed, and low oil pressure closing locking auxiliary relay normally-closed contact and SF6 low pressure gas locking auxiliary Relay normally closed contact；A phase closing coils branch, B phase closing coil branches and C phase closing coil branches connect breaker respectively Shutting-brake control interface；
    The anti-jump loop includes corresponding to the anti-rebound of A phases with A phase closing coil branch circuit parallel connections of closing circuit setting respectively Road, the C phase anti-jump loops with the B phases anti-jump loop of B phase closing coil branch circuit parallel connections and with C phase closing coil branch circuit parallel connections；
    The non-whole phase protection circuit includes three branches in parallel, and the first branch includes the auxiliary contact branch of series connection and non-complete Phase time relay 47T1, the second branch include non-three phase time relay 47TX1, and the 3rd branch includes non-three phase time relay Device 47TY1；Non-three phase time relay 47TX1 and non-three phase time relay 47TY1 matches somebody with somebody with non-three phase time relay 47T1 Close.
  2. A kind of 2. high-voltage circuitbreaker secondary circuit according to claim 1, it is characterised in that
    The A phase switching windings branch includes the A1 phase auxiliary switches normal opened contact 1 of series connection, A2 phase auxiliary switch normal opened contacts 1st, A1 phases switching winding and A2 phase switching windings；The normally opened contact of A phase non-whole phase protection time relays 47TX1 is coupled with parallel connection A1 phase auxiliary switches normal opened contact 2 and A2 phase auxiliary switches normal opened contact 2 connect after, it is normally opened with the A1 phase auxiliary switches connected Contact 1 and A2 phase auxiliary switches normal opened contact 1 are in parallel；
    The B phase switching windings branch includes the B1 phase auxiliary switches normal opened contact 1 of series connection, B2 phase auxiliary switch normal opened contacts 1st, B1 phases switching winding and B2 phase switching windings；The normally opened contact of B phase non-whole phase protection time relays 47TX1 is coupled with parallel connection B1 phase auxiliary switches normal opened contact 2 and B2 phase auxiliary switches normal opened contact 2 connect after, it is normally opened with the B1 phase auxiliary switches connected Contact 1 and B2 phase auxiliary switches normal opened contact 1 are in parallel；
    The C phase switching windings branch includes the C1 phase auxiliary switches normal opened contact 1 of series connection, C2 phase auxiliary switch normal opened contacts 1st, C1 phases switching winding and C2 phase switching windings；The normally opened contact of C phase non-whole phase protection time relays 47TX1 is coupled with parallel connection C1 phase auxiliary switches normal opened contact 2 and C2 phase auxiliary switches normal opened contact 2 connect after, it is normally opened with the C1 phase auxiliary switches connected Contact 1 and C2 phase auxiliary switches normal opened contact 1 are in parallel.
  3. A kind of 3. high-voltage circuitbreaker secondary circuit according to claim 1, it is characterised in that
    Normally-closed contact, the A1 phase auxiliary switches that the A phase closing coils branch includes the A phase anti-trip relay 52YA of series connection are normal Close contact 1, A1 phases closing coil, A2 phase auxiliary switches normally closed contact 1 and A2 phase closing coils；
    Normally-closed contact, the B1 phase auxiliary switches that the B phase closing coils branch includes the B phase anti-trip relay 52YB of series connection are normal Close contact 1, B1 phases closing coil, B2 phase auxiliary switches normally closed contact 1 and B2 phase closing coils；
    Normally-closed contact, the C1 phase auxiliary switches that the C phase closing coils branch includes the C phase anti-trip relay 52YC of series connection are normal Close contact 1, C1 phases closing coil, C2 phase auxiliary switches normally closed contact 1 and C2 phase closing coils.
  4. A kind of 4. high-voltage circuitbreaker secondary circuit according to claim 1, it is characterised in that
    A phases anti-jump loop is connected including two A phase auxiliary switches normal opened contacts 4 in parallel with A phase anti-trip relay 52YA；It is described Two A phase auxiliary switches normal opened contacts 4 in parallel are in parallel with the normally opened contact of A phase anti-trip relay 52YA；
    The B phase auxiliary switches normal opened contact 4 that B phases anti-jump loop includes another two parallel connection is connected with B phase anti-trip relay 52YB；Institute It is in parallel with the normally opened contact of B phase anti-trip relay 52YB to state two B phase auxiliary switches normal opened contacts 4 in parallel；
    The C phase auxiliary switches normal opened contact 4 that C phases anti-jump loop includes another two parallel connection is connected with C phase anti-trip relay 52YC；Institute It is in parallel with the normally opened contact of C phase anti-trip relay 52YC to state two C phase auxiliary switches normal opened contacts 4 in parallel.
  5. A kind of 5. high-voltage circuitbreaker secondary circuit according to claim 1, it is characterised in that
    The auxiliary contact branch includes auxiliary switch normal opened contact and the auxiliary switch normally closed contact parallel branch being connected in series；
    The auxiliary switch normal opened contact is by 3, A2 phase auxiliary switch normal opened contacts of an A1 phase auxiliary switches normal opened contact 3rd, a B1 phase auxiliary switches normal opened contact 3, B2 phase auxiliary switches normal opened contacts, 3, C1 phase auxiliary switches are normally opened connects Point 3 and C2 phase auxiliary switches normal opened contact composition 3 in parallel；
    The auxiliary switch normally closed contact is by 2, A2 phase auxiliary switch normally closed contacts of an A1 phase auxiliary switches normally closed contact 2nd, a B1 phase auxiliary switches normally closed contact 2, B2 phase auxiliary switches normally closed contacts, 2, C1 phase auxiliary switches are normally closed connects Point 2 and a C2 phase auxiliary switches normally closed contact 2 composition in parallel.
  6. 6. a kind of high-voltage circuitbreaker secondary circuit according to claim 1, it is characterised in that auxiliary contact branch passes through work( Energy pressing plate is connected with non-three phase time relay 47T1.
  7. A kind of 7. high-voltage circuitbreaker secondary circuit according to claim 1, it is characterised in that the second branch further include with it is non- The delay switch of the non-whole phase protection time relay 47T1 of full phase time relay 47TX1 series connection and non-whole phase protection time after The delay switch of electric appliance 47TY1；The delay switch parallel connection non-whole phase protection time relay of non-whole phase protection time relay 47T1 The normally opened contact 1 of device 47TX1.
  8. A kind of 8. high-voltage circuitbreaker secondary circuit according to claim 1, it is characterised in that the 3rd branch further include with it is non- The normally opened contact 2 of the non-three phase time relay 47TX1 of full phase time relay 47TY1 series connection.
CN201711411815.9A 2017-12-23 2017-12-23 Secondary circuit of high-voltage circuit breaker Active CN107994575B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109088444A (en) * 2018-08-28 2018-12-25 国网湖南省电力有限公司 A kind of optimization method of direct current receiving end phase modifier non-whole phase protection action performance
CN109216100A (en) * 2018-09-09 2019-01-15 湛江电力有限公司 A kind of monitoring indicating circuit of power switch vacuum circuit breaker
CN112653091A (en) * 2020-12-14 2021-04-13 河南平高电气股份有限公司 Circuit breaker locking control circuit
CN112701589A (en) * 2020-12-30 2021-04-23 上海昱章电气成套设备有限公司 Circuit breaker cabinet

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