CN113872330B - Double-set intelligent terminal starting control loop of transformer substation circuit breaker - Google Patents
Double-set intelligent terminal starting control loop of transformer substation circuit breaker Download PDFInfo
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- CN113872330B CN113872330B CN202111307751.4A CN202111307751A CN113872330B CN 113872330 B CN113872330 B CN 113872330B CN 202111307751 A CN202111307751 A CN 202111307751A CN 113872330 B CN113872330 B CN 113872330B
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
- H02J13/0004—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system
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- 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
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- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a double-set intelligent terminal starting control loop of a substation circuit breaker, which comprises: a first set of intelligent terminal starting control loop and a second set of intelligent terminal starting control loop; first set of intelligent terminal starts control circuit and includes: the five-prevention lock, the remote control/local handle module, the remote control pressing plate, the first hand closing/hand opening starting relay module, the first opening module and the first execution module are sequentially arranged from the positive pole of the direct current; the remote control/local handle modules 1 and 2 are connected with the local hand-on/hand-off handle modules, and the nodes 3 and 4 are connected with the measurement and control module; the second set of intelligent terminal start control loop includes: from the second manual/manual branch start relay module, the second module of opening into and the second execution module that the direct current positive pole set gradually, still include: and the second three-phase closing outlet pressure plate module is connected with the first opening module, and the manual closing starting relay starting node is connected with the second three-phase closing outlet pressure plate module. The problem that one of two sets of intelligent terminals of the substation circuit breaker cannot receive remote control opening and closing can be effectively solved.
Description
Technical Field
The invention relates to the technical field of power system substations, in particular to a starting control loop of a double-set intelligent terminal of a substation circuit breaker.
Background
The transformer substation is a place for converting voltage and current, receiving electric energy and distributing electric energy in an electric power system. The substations in the power plant are step-up substations, which are used to boost up the electrical energy generated by the generator and feed it into the high-voltage network. And each transformer substation is internally provided with a multi-circuit breaker, and the breaker is a switching device which can close, bear and break the current under the condition of a normal loop and close, bear and break the current under the condition of an abnormal loop within a specified time, so that the accident expansion is effectively prevented, and the safe operation is ensured.
At present, protection devices, intelligent terminals and the like related to 220kV voltage levels of a transformer substation are in dual configuration, a measurement and control device is generally in single-set configuration, a circuit breaker is generally started by a first set of intelligent terminals in the remote control process of the measurement and control device, and then a second set of intelligent terminals cannot effectively and accurately judge remote control opening and closing instructions. Therefore, the hand-closing signal of the second set of intelligent terminal is not switched in, fault events such as protection of reclosure without charging, mistaken starting of reclosure and the like are caused, and some error information such as accident summary is mistakenly reported. Therefore, there are the following drawbacks: the method has the advantages that on the premise that circuit breakers configured for transformer substation control are all started by the first set of intelligent terminals, the second set of intelligent terminals cannot effectively and accurately judge remote control opening and closing instructions.
Therefore, how to provide a starting control loop of a double set of intelligent terminals of a substation circuit breaker on the basis of the control configuration of the substation of the existing power system so as to effectively solve the problem that one set of two sets of intelligent terminals of the substation circuit breaker cannot receive remote control opening and closing, which becomes a problem to be solved by technical personnel in the field.
Disclosure of Invention
In view of the above problems, the invention provides a starting control loop for a double-set intelligent terminal of a substation circuit breaker, which at least solves some technical problems, and can effectively solve the problem that one set of the double-set intelligent terminal of the substation circuit breaker cannot receive remote control opening and closing.
The embodiment of the invention provides a starting control loop of a double-set intelligent terminal of a substation circuit breaker, which comprises the following steps: a first set of intelligent terminal starting control loop and a second set of intelligent terminal starting control loop;
the first set of intelligent terminal start control loop includes: the five-prevention lock, the remote control/local handle module, the remote control pressing plate, the first hand closing/hand opening starting relay module, the first opening module and the first execution module are sequentially arranged from a 220v direct current positive electrode; the remote control/ local handle modules 1 and 2 are connected with the local hand-on/hand-off handle modules, and the nodes 3 and 4 are connected with the measurement and control module;
wherein, first hand closes/hand divides start-up relay module includes: the first manual on-off starting relay and the first manual off-off starting relay; the on-site hand-closing/hand-separating handle module comprises: the on-site handle is closed and the on-site handle is separated; the local hand-closing handle is connected with the first hand-closing starting relay; the local hand-separating handle is connected with the first hand-separating starting relay;
the second set of intelligent terminal start control loop includes: the second manual on/off starting relay module, the second open-close module and the second execution module are sequentially arranged from the 220v direct current positive electrode; the second manual on/manual off start relay module includes: the second manual starting relay and the second manual starting relay;
the second set of intelligent terminal start control loop further comprises: and the second three-phase closing outlet pressure plate module is connected with the first opening module, and the manual closing starting relay starting node is connected with the second three-phase closing outlet pressure plate module.
Further, the measurement and control module comprises: remote-joining control nodes and remote-separating control nodes; the remote-joint control node is connected with the first manual-joint starting relay; the remote control node is connected with the first manual starting relay.
Further, the first set of intelligent terminal start control loop further includes: and the first three-phase tripping outlet pressing plate module and the first three-phase closing outlet pressing plate module are arranged between the first opening module and the first execution module.
Further, the first execution module and the second execution module each include: three-phase tripping holding relay and three-phase closing holding relay.
Further, the first three-phase trip outlet hold down module includes: the three-phase tripping outlet pressing plate A, the three-phase tripping outlet pressing plate B and the three-phase tripping outlet pressing plate C are arranged in parallel.
Further, the first three-phase closing outlet clamp plate module includes: the first A three-phase closing outlet pressing plate, the first B three-phase closing outlet pressing plate and the first C three-phase closing outlet pressing plate are arranged in parallel.
Further, the second three-phase closing outlet pressing plate module includes: and the second A three-phase closing outlet pressing plate, the second B three-phase closing outlet pressing plate and the second C three-phase closing outlet pressing plate are connected in parallel.
Further, the three-phase trip hold relay includes: the three-phase tripping device comprises an A three-phase tripping holding relay, a B three-phase tripping holding relay and a C three-phase tripping holding relay which are arranged in parallel.
Further, the three-phase closing holding relay includes: the three-phase switching-on holding relay A, the three-phase switching-on holding relay B and the three-phase switching-on holding relay C are arranged in parallel.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
the embodiment of the invention provides a double-set intelligent terminal starting control loop of a transformer substation circuit breaker, which comprises the following steps: a first set of intelligent terminal starting control loop and a second set of intelligent terminal starting control loop; first set of intelligent terminal start-up control circuit includes: the five-prevention lock, the remote control/local handle module, the remote control pressing plate, the first hand closing/hand opening starting relay module, the first opening module and the first execution module are sequentially arranged from a 220v direct current positive electrode; the remote control/ local handle modules 1 and 2 are connected with the local hand-on/hand-off handle modules, and the nodes 3 and 4 are connected with the measurement and control module; the second set of intelligent terminal start control loop includes: from the second manual/manual branch start relay module, the second module of opening into and the second execution module that 220v direct current positive pole set gradually, still include: and the second three-phase closing outlet pressure plate module is connected with the first opening module, and the manual closing starting relay starting node. The problem that one of two sets of intelligent terminals of the transformer substation circuit breaker cannot receive remote control opening and closing is effectively solved. When the second set of intelligent terminal is remotely controlled or switched on and off locally, the second set of intelligent terminal is consistent with the relay controlled and started by the first set of intelligent terminal, and therefore the same function is kept.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of remote control of a first set of intelligent terminal circuit breakers in a dual-set intelligent terminal start control loop of a substation circuit breaker according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a second set of intelligent terminals according to an embodiment of the present invention;
fig. 3 is a control schematic diagram of a first set of intelligent terminals according to an embodiment of the present invention;
fig. 4 is a control schematic diagram of a second set of intelligent terminals according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The embodiment of the invention provides a starting control loop of a double-set intelligent terminal of a substation circuit breaker, which comprises the following steps: the intelligent terminal starting control system comprises a first set of intelligent terminal starting control loop and a second set of intelligent terminal starting control loop.
Wherein, as shown with reference to fig. 1, a first set of intelligent terminal start control loop includes: terminal 4 is connected with 220VDC positive, and terminal 12 is connected with 220V DC negative; five-prevention locks (1-4 WF), remote control/local handle modules (1-4 QK), remote control pressing plates (1-4 YLP), first hand-closing/hand-separating starting relay modules (1 ZJ and 2 ZJ), first opening modules (a first set of intelligent terminal opening modules 1-4n 14) and first execution modules (a first set of intelligent terminal execution modules 1-4n 15) are sequentially arranged from the terminal 4.
Specifically, the first manual on/manual off starting relay module comprises: a first hand-on starting relay (1 ZJ) and a first hand-off starting relay (2 ZJ). The remote control/local handle modules (1-4 QK) are connected with the local hand closing/hand opening/closing module (1-4 KK) through nodes 1 and 2, and are connected with the measurement and control modules (measurement and control devices 1-4n 12) through nodes 3 and 4;
further, the local hand-on/hand-off handle module (1-4 KK) comprises: the local handle closes handle (3, 4 nodes) and local handle divides handle (1, 2 nodes). The measurement and control module (measurement and control devices 1-4n 12) comprises: remote-joint control node (YH 1-1) and remote-separation control node (YF 1-1). The local hand-closing handle (3 and 4 nodes) and the remote-closing control node (YH 1-1) are connected with a first hand-closing starting relay (1 ZJ); the local hand-separating handle (1, 2 nodes) and the remote-separating control node (YF 1-1) are connected with a first hand-separating starting relay (2 ZJ).
Referring to fig. 2 and 4, the second set of intelligent terminal start-up control loop includes: 1223+ is 220VDC positive, 1231-is 220V DC negative, and a second manual opening/manual opening starting relay module (1 ZJ and 2 ZJ), a second opening module (a second set of intelligent terminal opening module 2-4n 14) and a second execution module (a second set of intelligent terminal execution module 1-4n 16) are sequentially arranged from 1223 +; the second manual on/manual off starter relay module (1 ZJ and 2 ZJ) includes: a second manual starting relay (1 ZJ) and a second manual starting relay (2 ZJ).
Further, referring to fig. 3, the second set of intelligent terminal start control loop further includes: and the second three-phase switching-on outlet pressing plate module (second set of intelligent terminals A, B and C three-phase switching-on outlet pressing plates 2-4C1LP4, 2-4C1LP5 and 2-4C1LP 6) is connected with the first switching-on module (1-4 n 14), and the manual switching-on starting relay starting node (3 ZJ).
In the embodiment, the circuit breaker with double intelligent terminals for controlling and configuring sends out related opening and closing instructions through the first intelligent terminal in the measurement and control process of the measurement and control device, the second manual-closing starting relay (1 ZJ) and the second manual-opening starting relay (2 ZJ) are started simultaneously, the second intelligent terminal is opened into the second intelligent terminal, the second intelligent terminal receives the hand-closing opening and closing and opening and hand-opening entering commands, and the second intelligent terminal can effectively and accurately judge the remote control opening and closing instructions. When the second set of intelligent terminal is remotely controlled or switched on and off locally, the second set of intelligent terminal is consistent with the relay controlled and started by the first set of intelligent terminal, and therefore the same function is kept.
Further, referring to fig. 3, the 1-4kd terminal is connected with 220V DC positive, and the 1-4kd terminal is connected with 220V DC negative. First set of intelligent terminal start control circuit still includes: first three-phase trip outlet clamp plate modules (1-4 CLP1, 1-4CLP2, and 1-4CLP 3), first three-phase closing outlet clamp plate modules (1-4 CLP4, 1-4CLP5, 1-4CLP 6), both disposed between the first opening module (1-4 n 14) and the first execution module (1-4 n 15). Referring to fig. 1, CB is a circuit breaker open/close position.
As shown in fig. 3 and 4, each of the first execution module (1-4 n 15) and the second execution module (1-4 n 16) includes: three-phase trip hold relays (TBJa, TBJb, and TBJc) and three-phase close hold relays (HBJa, HBJb, and HBJc). The three-phase trip hold relay includes: the three-phase tripping control system comprises an A three-phase tripping hold relay (TBJa), a B three-phase tripping hold relay (TBJb) and a C three-phase tripping hold relay (TBJc) which are arranged in parallel. The three-phase closing holding relay includes: the three-phase switching-on relay comprises an A three-phase switching-on holding relay (HBJa), a B three-phase switching-on holding relay (HBJb) and a C three-phase switching-on holding relay (HBJc) which are arranged in parallel.
The first three-phase trip outlet hold down module includes: the three-phase tripping device comprises an A three-phase tripping outlet pressing plate (1-4 CLP 1), a B three-phase tripping outlet pressing plate (1-4 CLP 2) and a C three-phase tripping outlet pressing plate (1-4 CLP 3) which are arranged in parallel. First three-phase combined floodgate export clamp plate module includes: the switching-on device comprises a first A three-phase switching-on outlet pressure plate (1-4 CLP 4), a first B three-phase switching-on outlet pressure plate (1-4 CLP 5) and a first C three-phase switching-on outlet pressure plate (1-4 CLP 6) which are arranged in parallel.
Further, referring to fig. 3, the second set of intelligent terminal start control loop further includes: and the second three-phase switching-on outlet pressure plate module (second set of intelligent terminals A, B and C three-phase switching-on outlet pressure plates 2-4C1LP4, 2-4C1LP5 and 2-4C1LP 6) and a hand-switching-on starting relay starting node (3 ZJ) are connected with the first switching-on module (1-4 n 14). The second three-phase combined floodgate export clamp plate module includes: and the second A three-phase closing outlet pressing plate (2-4C 1LP 4), the second B three-phase closing outlet pressing plate (2-4C 1LP 5) and the second C three-phase closing outlet pressing plate (2-4C 1LP 6) are arranged in parallel.
The double-set intelligent terminal starting control loop of the transformer substation circuit breaker provided by the embodiment comprises the following use methods and working principles:
1. referring to fig. 1, the control loop is divided into two states:
in the remote control state, when the 1-4QK remote control/local handle module is switched to a remote control gear, 3 and 4 nodes in the 1-4QK are conducted, and the 1-4YLP remote control pressure plate is put into operation: the nodes 1 and 2 in the 1-4YLP are conducted. The 1-4n12 measurement and control device sends a remote control command: a remote closing instruction is sent, YH1-1 remote closing control nodes are conducted, a 1ZJ first hand closing starting relay is started, and a 1-4n14 first set of intelligent terminal opening module is manually opened and closed; and a remote division instruction is sent out, YF1-1 remote division control nodes are conducted, a 2ZJ first hand division starting relay is started, and a 1-4n14 first set of intelligent terminal opening module hands are separated.
In a local state, the nodes 1 and 2 in the 1-4WF five-prevention lock are inserted into the 1-4WF five-prevention lock and are conducted, and when the 1-4QK remote control/local handle module is switched to a local gear, the nodes 1 and 2 in the 1-4QK are conducted. The 1-4KK local hand closing/hand separating handle module is switched to a hand closing handle, 3 and 4 nodes in the 1-4KK are conducted, a 1ZJ first hand closing starting relay is started, and a 1-4n14 first set of intelligent terminal opening module is opened and closed by hands; 1-4KK closes/hand branch handle module on spot and switches over to divide the handle, 1 in 1-4KK, 2 nodes switch on, the first hand of 2ZJ divides the starting relay to start, the first set of intelligent terminal of 1-4n14 opens the module hand and divides into.
2. Referring to fig. 2, a 1ZJ second hand-on starting relay is started, nodes 13 and 14 in 1ZJ are conducted, and a 2-4n14 second set of intelligent terminal switching-in module is switched in by hand; the second manual starting relay of the 2ZJ is started, the nodes 13 and 14 in the 2ZJ are conducted, and the second set of intelligent terminal opening module of the 2-4n14 is opened.
3. Referring to fig. 3 and 4, after tripping is started, TA, TB and TC in the first set of intelligent terminal starting modules 1-4n14 are started, the first set of intelligent terminal a, B and C three-phase tripping outlet pressing plates 1-4CLP1, 1-4CLP2 and 1-4CLP3 are put into operation, the first set of intelligent terminal execution modules 1-4n15 are started, the a, B and C three-phase tripping holding relays TBJa, TBJb and TBJc are started, and the tripping loop is self-maintained and started until tripping is successful. After tripping is started, nodes 13 and 14 in a second manual starting relay 2ZJ are conducted, TA, TB and TC in a second set of intelligent terminal switching module 2-4n14 are started, three-phase tripping outlet pressing plates 2-4CLP1, 2-4CLP2 and 2-4CLP3 of a first set of intelligent terminal A, B and C are put into operation, three-phase tripping holding relays TBJa, TBJb and TBJc in a second set of intelligent terminal execution module 2-4n16 are started, and a tripping loop is self-held and started until tripping is successful.
After switching on and switching off, starting HA, HB and HC in a first set of intelligent terminal switching-on modules 1-4n14, and putting a first set of intelligent terminals A, B and C into three-phase switching-on outlet pressing plates 1-4CLP4, 1-4CLP5 and 1-4CLP 6; or the nodes 13 and 14 of the second manual-closing starting relay 1ZJ in the second set of intelligent terminals are conducted, the HJ1 (closing starting node) in the second set of intelligent terminal switching-in module 2-4n14 is started, the second set of intelligent terminal manual-closing starting relay starting node 3ZJ is started, correspondingly, the second set of intelligent terminal A, B and C three-phase closing outlet pressing plates 2-4C1LP4, 2-4C1LP5 and 2-4C1LP6 are put into, the A, B and C three-phase closing holding relays HBJa, HBJb and HBJc in the first set of intelligent terminal execution module 1-4n15 are started, and the closing loop is self-held and started until closing is successful.
Specifically, in this embodiment, the first set of intelligent terminals and the second set of intelligent terminals are independent from each other on the network and cannot send instructions to each other. And two sets of intelligent terminal separating brake independently carry out, and the combined floodgate because circuit breaker combined floodgate coil only has a set of, combined floodgate return circuit part sharing.
Further, in this embodiment, for the protection device, because the process layer networks a and B are independent, the two sets of intelligent terminals respectively execute: the protection tripping and closing functions are realized, and meanwhile, the two sets of intelligent terminals independently provide related logic for reclosing of the protection device. When manually separating and combining, the following problems exist: if the starting control loop provided by the embodiment is not available, the first set of intelligent terminal is started during manual operation, and the purpose of operating the circuit breaker can be achieved, but the second set of intelligent terminal can misjudge whether the circuit breaker is started by surreptitious tripping, reclosing is started or an accident is mistakenly reported during manual operation; when the hand is operated, accidents can not be recovered all the time.
The double-set intelligent terminal starting control loop of the substation circuit breaker provided by the embodiment is applied and verified by sufficient practice in a remote control test of the substation. This control circuit both can perfect one of them set of intelligent terminal and can not receive the remote control branch, close the problem of opening and shutting, can simply and effectually install miniature relay additional again, stable, reliable solution probably leads to second set of intelligent terminal hand to close the signal and do not open into, and the protection device reclosing that leads to does not charge, the wrong condition of starting reclosing or the wrong information of some mistake newspaper such as accident summary for second set of intelligent terminal is when the remote control or on the spot divide-shut brake, thereby keeps the same function with the relay that first set of intelligent terminal started unanimously.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. The utility model provides a two sets of intelligent terminal start control circuit of transformer substation's circuit breaker which characterized in that includes: a first set of intelligent terminal starting control loop and a second set of intelligent terminal starting control loop;
the first set of intelligent terminal start control loop includes: the device comprises a five-prevention lock, a remote control/local handle module, a remote control pressing plate, a first manual closing/manual opening starting relay module, a first opening module and a first execution module which are sequentially arranged from a 220v direct current positive electrode; the remote control/local handle modules 1 and 2 are connected with the local hand-on/hand-off handle modules, and the nodes 3 and 4 are connected with the measurement and control module;
wherein, first hand closes/hand divides the start relay module to include: the first hand-on starting relay and the first hand-off starting relay; the on-site hand-closing/hand-separating handle module comprises: the on-site handle is closed and the on-site handle is separated; the local hand-closing handle is connected with the first hand-closing starting relay; the local hand-separating handle is connected with the first hand-separating starting relay;
the second set of intelligent terminal start control loop includes: the second manual opening/closing/manual opening starting relay module, the second opening module and the second execution module are sequentially arranged from the positive pole of the 220v direct current; the second manual on/manual off start relay module includes: a second manual starting relay and a second manual starting relay;
the second set of intelligent terminal start control loop further comprises: and the second three-phase closing outlet pressure plate module is connected with the first opening module, and the manual closing starting relay starting node is connected with the second three-phase closing outlet pressure plate module.
2. The substation breaker double-set intelligent terminal starting control loop according to claim 1, wherein the measurement and control module comprises: remote-joining control nodes and remote-separating control nodes; the remote-closing control node is connected with the first hand-closing starting relay; the remote control node is connected with the first manual starting relay.
3. The substation breaker dual-set intelligent terminal start-up control circuit of claim 1, wherein the first set of intelligent terminal start-up control circuit further comprises: and the first three-phase tripping outlet pressing plate module and the first three-phase closing outlet pressing plate module are arranged between the first opening module and the first execution module.
4. The substation breaker double-set intelligent terminal starting control loop as claimed in claim 1, wherein the first execution module and the second execution module each comprise: three-phase tripping holding relay and three-phase closing holding relay.
5. A substation breaker double intelligent terminal start control loop according to claim 3, wherein the first three-phase trip outlet clamp plate module comprises: the three-phase tripping device comprises an A three-phase tripping outlet pressing plate, a B three-phase tripping outlet pressing plate and a C three-phase tripping outlet pressing plate which are arranged in parallel.
6. The transformer substation breaker double-set intelligent terminal starting control circuit as claimed in claim 3, wherein the first three-phase closing outlet pressure plate module comprises: the first A three-phase closing outlet pressing plate, the first B three-phase closing outlet pressing plate and the first C three-phase closing outlet pressing plate are arranged in parallel.
7. The substation breaker double-set intelligent terminal starting control loop as claimed in claim 1, wherein the second three-phase closing outlet pressure plate module comprises: and the second A three-phase closing outlet pressing plate, the second B three-phase closing outlet pressing plate and the second C three-phase closing outlet pressing plate are connected in parallel.
8. The substation breaker double-intelligent-terminal starting control loop as claimed in claim 4, wherein the three-phase tripping hold relay comprises: the three-phase tripping device comprises an A three-phase tripping holding relay, a B three-phase tripping holding relay and a C three-phase tripping holding relay which are arranged in parallel.
9. The transformer substation breaker double-set intelligent terminal starting control loop according to claim 4, wherein the three-phase closing holding relay comprises: the three-phase switching-on holding relay A, the three-phase switching-on holding relay B and the three-phase switching-on holding relay C are arranged in parallel.
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| CN102361352A (en) * | 2011-10-24 | 2012-02-22 | 山东电力工程咨询院有限公司 | Change-over switch integration circuit for circuit breaker of intelligent converting station |
| CN204597238U (en) * | 2015-05-21 | 2015-08-26 | 大唐淮北发电厂 | 220kV double bus scheme system, control circuit |
| CN204835514U (en) * | 2015-07-24 | 2015-12-02 | 国网天津市电力公司 | Rebound way is prevented in cooperation suitable for dual operation case |
| CN112968521A (en) * | 2021-02-03 | 2021-06-15 | 中国能源建设集团安徽省电力设计院有限公司 | Circuit breaker control circuit of phase selection divide-shut brake |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107884707B (en) * | 2017-09-30 | 2018-12-21 | 杨启蓓 | High-voltage circuit-breaker switching on-off time on-Line Monitor Device and method |
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| CN102361352A (en) * | 2011-10-24 | 2012-02-22 | 山东电力工程咨询院有限公司 | Change-over switch integration circuit for circuit breaker of intelligent converting station |
| CN204597238U (en) * | 2015-05-21 | 2015-08-26 | 大唐淮北发电厂 | 220kV double bus scheme system, control circuit |
| CN204835514U (en) * | 2015-07-24 | 2015-12-02 | 国网天津市电力公司 | Rebound way is prevented in cooperation suitable for dual operation case |
| CN112968521A (en) * | 2021-02-03 | 2021-06-15 | 中国能源建设集团安徽省电力设计院有限公司 | Circuit breaker control circuit of phase selection divide-shut brake |
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