CN113872330A - 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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- CN113872330A CN113872330A CN202111307751.4A CN202111307751A CN113872330A CN 113872330 A CN113872330 A CN 113872330A CN 202111307751 A CN202111307751 A CN 202111307751A CN 113872330 A CN113872330 A CN 113872330A
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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 transformer 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 system comprises a five-prevention lock, a remote control/local handle module, a remote control pressing plate, a first manual on/manual off starting relay module, a first opening module and a first execution module which are sequentially arranged from a 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 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 second set of intelligent terminal hand-closing signals are 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, on the basis of the existing control configuration of the power system substation, how to provide a starting control loop for two sets of intelligent terminals of the substation circuit breaker 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 that technical personnel in the field need to solve urgently.
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 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;
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 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 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.
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 connected in parallel.
Further, the second three-phase closing outlet pressing 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.
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 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; first set of intelligent terminal starts control circuit and 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; 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 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. The second set of intelligent terminal is consistent with the relay controlled and started by the first set of intelligent terminal when the switch is switched on and off remotely or locally, so that 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 provided by 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 transformer 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 (1-4WF), remote control/local handle modules (1-4QK), remote control pressing plates (1-4YLP), first hand-closing/hand-separating starting relay modules (1ZJ and 2ZJ), a first opening module (a first set of intelligent terminal opening module 1-4n14) and a first execution module (a first set of intelligent terminal execution module 1-4n15) are sequentially arranged from the terminal 4.
Specifically, the first manual on/manual off start relay module includes: a first hand-on starting relay (1ZJ) and a first hand-off starting relay (2 ZJ). The remote control/local handle modules (1-4QK) are connected with the local hand-in/hand-out handle modules (1-4KK) through nodes 1 and 2, and are connected with the measurement and control modules (measurement and control devices 1-4n12) through nodes 3 and 4;
further, the local hand-on/hand-off handle module (1-4KK) 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 1-4n12) comprises: remote joint control node (YH1-1) and remote separation control node (YF 1-1). The local hand-closing handle (3 and 4 nodes) and the remote-closing control node (YH1-1) 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 (YF1-1) are connected with a first hand-separating starting relay (2 ZJ).
Referring to fig. 2 and 4, the second set of intelligent terminal start control loop includes: 1223+ is 220VDC positive, 1231-is 220V DC negative, and a second manual opening/closing/manual opening starting relay module (1ZJ and 2ZJ), a second opening module (a second set of intelligent terminal opening module 2-4n14) and a second execution module (a second set of intelligent terminal execution module 1-4n16) are sequentially arranged from 1223 +; the second manual on/manual off starter relay module (1ZJ and 2ZJ) includes: a second manual starting relay (1ZJ) 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 closing outlet pressing plate module (a second set of intelligent terminal A, B, C three-phase closing outlet pressing plates 2-4C1LP4, 2-4C1LP5 and 2-4C1LP6) and a hand closing starting relay starting node (3ZJ) are connected with the first switching-in module (1-4n 14).
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 (1ZJ) and the second manual-opening starting relay (2ZJ) 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. The second set of intelligent terminal is consistent with the relay controlled and started by the first set of intelligent terminal when the switch is switched on and off remotely or locally, so that the same function is kept.
Further, referring to FIG. 3, the 1-4KD:1 terminal is connected to 220V DC plus, and the 1-4KD:11 terminal is connected to 220V DC minus. First set of intelligent terminal start control circuit still includes: a first three-phase trip outlet clamp module (1-4CLP1, 1-4CLP2, and 1-4CLP3), a first three-phase closing outlet clamp module (1-4CLP4, 1-4CLP5, 1-4CLP6), both disposed between the first opening module (1-4n14) and the first execution module (1-4n 15). Referring to fig. 1, CB is a circuit breaker open/close position.
Wherein, referring to fig. 3 and 4, the first execution module (1-4n15) and the second execution module (1-4n16) each include: 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: an A three-phase tripping and holding relay (TBJa), a B three-phase tripping and holding relay (TBJb) and a C three-phase tripping and holding 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: an A three-phase trip outlet pressure plate (1-4CLP1), a B three-phase trip outlet pressure plate (1-4CLP2) and a C three-phase trip outlet pressure plate (1-4CLP3) 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 pressing plate (1-4CLP4), a first B three-phase switching-on outlet pressing plate (1-4CLP5) and a first C three-phase switching-on outlet pressing plate (1-4CLP6) 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 closing outlet pressing plate module (a second set of intelligent terminal A, B, C three-phase closing outlet pressing plates 2-4C1LP4, 2-4C1LP5 and 2-4C1LP6) and a hand closing starting relay starting node (3ZJ) are connected with the first switching-in module (1-4n 14). The second three-phase combined floodgate export clamp plate module includes: and the second A three-phase closing outlet pressure plate (2-4C1LP4), the second B three-phase closing outlet pressure plate (2-4C1LP5) and the second C three-phase closing outlet pressure plate (2-4C1LP6) are arranged in parallel.
The double-set intelligent terminal starting control loop of the transformer substation circuit breaker provided by the embodiment has the following use method and working principle:
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: the remote closing instruction is sent, the YH1-1 remote closing control node is conducted, the 1ZJ first hand closing starting relay is started, and the 1-4n14 first set of intelligent terminal opening module is opened and closed manually; and a remote division instruction is sent, the YF1-1 remote division control node is conducted, the 2ZJ first hand division starting relay is started, and the 1-4n14 first set of intelligent terminal opening module is opened manually.
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; the 1-4KK local hand closing/hand separating handle module is switched to a hand separating handle, 1 and 2 nodes in the 1-4KK are conducted, a 2ZJ first hand separating starting relay is started, and a 1-4n14 first set of intelligent terminal opening module is separated into hands.
2. Referring to fig. 2, a second manual-closing starting relay of 1ZJ is started, nodes 13 and 14 in 1ZJ are conducted, and a second set of intelligent terminal opening-closing module of 2-4n14 is manually opened and closed; 2ZJ second manual starting relay is started, 13 and 14 nodes in 2ZJ are conducted, and 2-4n14 second set of intelligent terminal open module is opened.
3. Referring to fig. 3 and 4, after tripping is started, TA, TB and TC in the first set of intelligent terminal opening modules 1-4n14 are started, the three-phase tripping outlet pressing plates 1-4CLP1, 1-4CLP2 and 1-4CLP3 of the first set of intelligent terminals A, B, C are put into operation, A, B, C three-phase tripping holding relays TBJa, TBJb and TBJc in the first set of intelligent terminal execution modules 1-4n15 are started, and a 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 opening module 2-4n14 are started, a three-phase tripping outlet pressure plate 2-4CLP1, a three-phase tripping outlet pressure plate 2-4CLP2 and a three-phase tripping outlet pressure plate 2-4CLP3 of a first set of intelligent terminal A, B, C are put into use, A, B, C 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, HA, HB and HC in a first set of intelligent terminal switching-on modules 1-4n14 are started, and a first set of intelligent terminal A, B, C three-phase switching-on outlet pressure plates 1-4CLP4, 1-4CLP5 and 1-4CLP6 are put into; or the nodes 13 and 14 of the second manual-closing start relay 1ZJ in the second set of intelligent terminal are conducted, the HJ1 (closing start node) in the second set of intelligent terminal switching-in module 2-4n14 is started, the second set of intelligent terminal manual-closing start relay 3ZJ is started, correspondingly, the three-phase closing outlet pressing plates 2-4C1LP4, 2-4C1LP5 and 2-4C1LP6 of the second set of intelligent terminal A, B, C are switched in, the A, B, 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 network A, B is 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 terminals is started during manual operation, and the purpose of operating the circuit breaker can be achieved, but the second set of intelligent terminals can misjudge whether the starting is stolen, the reclosing is started or the accident is misinformed; 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 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.
2. The substation circuit ware double intelligent terminal start control circuit of claim 1, characterized in that, the measurement and control module includes: 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.
3. The transformer substation circuit breaker double-set intelligent terminal start-up control loop of claim 1, wherein the first set of intelligent terminal start-up control loop 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 circuit breaker double-set intelligent terminal starting control loop of claim 1, wherein the first execution module and the second execution module both comprise: three-phase tripping holding relay and three-phase closing holding relay.
5. The substation circuit breaker dual-set intelligent terminal start control loop of 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 substation circuit breaker double-set intelligent terminal starting control loop of 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 connected in parallel.
7. The substation circuit breaker double-set intelligent terminal starting control loop of 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 circuit breaker double intelligent terminal start control loop of claim 4, wherein the three-phase trip 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 substation circuit ware double intelligent terminal start control circuit of claim 4, wherein the three-phase closing hold 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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