CN112751264B - High-voltage switching device - Google Patents
High-voltage switching device Download PDFInfo
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- CN112751264B CN112751264B CN201911052642.5A CN201911052642A CN112751264B CN 112751264 B CN112751264 B CN 112751264B CN 201911052642 A CN201911052642 A CN 201911052642A CN 112751264 B CN112751264 B CN 112751264B
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- switch
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- intelligent terminal
- module
- switching
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- 238000004891 communication Methods 0.000 claims abstract description 12
- 238000004146 energy storage Methods 0.000 claims description 8
- 239000013307 optical fiber Substances 0.000 claims description 6
- 230000008030 elimination Effects 0.000 claims description 4
- 238000003379 elimination reaction Methods 0.000 claims description 4
- 238000011065 in-situ storage Methods 0.000 claims description 4
- 230000003993 interaction Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 241000272814 Anser sp. Species 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- H02B1/26—Casings; Parts thereof or accessories therefor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention provides high-voltage switch equipment which comprises a switch device and an embedded intelligent terminal, wherein the embedded intelligent terminal is in communication connection with a protection device for information interaction. The embedded intelligent terminal collects the switch position signal of the switch device and uploads the switch position signal to the protection device, decodes the protection command of the protection device, and obtains and outputs the control signal of the executing element of the switch device. The embedded intelligent terminal is used for directly controlling the executive component of the switching device, so that intermediate devices are reduced, the cost of the high-voltage switching equipment is reduced, and the reliability of the high-voltage switching equipment is improved.
Description
Technical Field
The invention relates to the technical field of substations, in particular to high-voltage switch equipment.
Background
At present, the integration, miniaturization and intellectualization level of high-voltage switch equipment in a transformer substation are higher and higher, and the control of an executing element of a switch device and the acquisition of a switch position signal are realized by an intelligent terminal on the basis of original traditional primary switch equipment. The inventor finds that the secondary circuit of the switch equipment and the circuit of the intelligent terminal have repeated devices, so that the cost of the high-voltage switch equipment is increased, and the overall reliability is reduced. For example, a 126kV smart disconnect circuit breaker, see fig. 1, the circuit breaker mechanism housing includes a plurality of intermediate relays, duplicated with the devices in the smart terminals.
Disclosure of Invention
In view of the above, the present invention provides a high-voltage switchgear, which solves the technical problems of high cost and low reliability of the existing high-voltage switchgear.
In order to solve the technical problems, the proposal is as follows:
a high voltage switchgear comprising: an embedded intelligent terminal and a switching device;
the embedded intelligent terminal comprises a processor module, and an opening module, an opening module and a network module which are respectively connected with the processor module;
the switch-in module is used for collecting switch position signals of the switch device;
the processor module is used for carrying out jitter elimination processing on the switch position signal and decoding a protection command issued by the protection device to obtain a control signal of an execution element of the switch device;
the opening module is used for outputting a control signal of an executive element of the switching device;
the network module is used for being in communication connection with the protection device.
Optionally, the switching device includes:
a circuit breaker.
Optionally, when the switching device is a breaker, the corresponding switch position signal collected by the embedded intelligent terminal includes a position signal of the breaker, a position signal of the locking device, a position signal of the gate control switch, a position signal of the closing energy storage and a motor overheat alarm signal;
the actuating element of the circuit breaker comprises an illuminating lamp, a split coil, an energy storage motor and an interlocking motor.
Optionally, the switching device further includes:
and the earthing knife switch.
Optionally, when the switch device is a grounding switch, the corresponding switch position signal collected by the embedded intelligent terminal comprises a position signal of the grounding switch, a position signal of a limit switch and a motor overheat alarm signal;
the executive component of the grounding disconnecting link comprises an illuminating lamp, an electromagnet, a brake and a motor.
Optionally, the switching device further includes:
and (5) controlling the cabinet in situ.
Optionally, when the switch device is a local control cabinet, the corresponding switch position signals collected by the embedded intelligent terminal include a position signal of an overhaul handle, a position signal of a local remote operation handle, a position signal of a manual opening and closing handle and a signal of a reset button;
the actuating element of the on-site control cabinet comprises a switching indicator light of a circuit breaker, a switching indicator light of a locking device and a switching indicator light of a grounding disconnecting link.
Optionally, the network module includes: an optical fiber input interface and an optical fiber output interface.
Optionally, the embedded intelligent terminals and the switch devices are multiple, and each switch device corresponds to one embedded intelligent terminal;
the embedded intelligent terminals are in communication connection through the network module;
and one of the plurality of embedded intelligent terminals is in communication connection with the protection device through the network module.
Compared with the prior art, the technical scheme of the invention has the following advantages:
the high-voltage switch equipment provided by the technical scheme comprises a switch device and an embedded intelligent terminal, wherein the embedded intelligent terminal is in communication connection with the protection device for information interaction. The embedded intelligent terminal collects the switch position signal of the switch device and uploads the switch position signal to the protection device, decodes the protection command of the protection device, and obtains and outputs the control signal of the executing element of the switch device. The embedded intelligent terminal is used for directly controlling the executive component of the switching device, so that intermediate devices are reduced, the cost of the high-voltage switching equipment is reduced, and the reliability of the high-voltage switching equipment is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a conventional 126kV intelligent isolation circuit breaker;
fig. 2 is a schematic diagram of a high-voltage switching device according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an embedded intelligent terminal according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an embedded intelligent terminal applied to a circuit breaker according to an embodiment of the present invention;
fig. 5 is a schematic diagram of an embedded intelligent terminal with a grounding switch according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an embedded intelligent terminal of an in-situ control cabinet according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of serial connection between embedded intelligent terminals according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 2, a high voltage switching device according to an embodiment of the present invention includes: an embedded intelligent terminal and a circuit breaker. The embedded intelligent terminal is in communication connection with the protection device through an optical fiber.
Referring to fig. 3 and 4, the embedded intelligent terminal includes a processor module, an on-off module, a network module, and a power module.
The switch-in module is used for collecting a switch position signal of the circuit breaker; the switch position signals of the circuit breaker include, but are not limited to, position signals of the circuit breaker, position signals of the locking device, position signals of the gate switch, position signals of the closing energy storage, motor overheat alarm signals and the like. IN fig. 4, cb_in represents an on-off module, 52b/1 represents a breaker off position, 52a/1 represents a breaker on position, 33HB2 represents a closing energy storage on position, 63GL1 represents SF6 low-pressure locking, 49M represents motor overheat alarm, SW represents a gate control switch, SP1 represents an unlock position, and SP2 represents a lock position.
And the processor module is used for carrying out jitter elimination processing on the switch position signal and decoding a protection command issued by the protection device to obtain a control signal of an executing element of the switch device. The processor module carries out logic judgment through a program to replace a secondary control loop of the original circuit breaker, and controls an executing element of the circuit breaker through the opening module.
The opening module is used for outputting a control signal of an execution element of the circuit breaker; the actuator elements of the circuit breaker include, but are not limited to, a lamp, a split coil, an energy storage motor, and an interlock motor. And the network module is used for being in communication connection with the protection device. The processor module carries out jitter elimination treatment on the collected switch position signals of the circuit breaker, marks a time tag and encodes the time tag into a GOOSE message, and uploads the GOOSE message to the protection device through an optical fiber; and after receiving the protection command issued by the protection device, decoding the GOOSE message to obtain a control signal of an execution element of the switching device, and controlling the corresponding execution element according to the specific control signal. In fig. 4, cb_out represents an opening module, ML represents an illumination lamp, CB represents an energy storage motor, DS represents an interlock motor, 52T1 represents opening of a release switch, and 52C represents opening of a closing switch.
Referring to fig. 5, another high voltage switching device according to an embodiment of the present invention includes: an embedded intelligent terminal and a grounding disconnecting link. The switch position signals collected by the embedded intelligent terminal comprise a position signal of a ground knife, a position signal of a limit switch and a motor overheat alarm signal; the executive component of the grounding disconnecting link comprises an illuminating lamp, an electromagnet, a brake and a motor. IN fig. 5, es_in represents an on module of the embedded intelligent terminal, es_out represents an on module of the embedded intelligent terminal, SP1 represents a ground knife split position, SP2 represents a ground knife closed position, SP6 represents a door locking limit switch, SP5 represents a manual operation limit switch, KT2 represents motor overheat, ML represents a lighting power supply, TL represents locking bar on, and M represents a three-phase motor.
Referring to fig. 6, still another high voltage switching device according to an embodiment of the present invention includes: an embedded intelligent terminal and an in-situ control cabinet. The switch position signals collected by the embedded intelligent terminal comprise position signals of an overhaul handle, position signals of a local remote operation handle, position signals of a manual opening and closing handle and signals of a reset button; the executive component of the on-site control cabinet comprises a switching indicator light of the circuit breaker, a switching indicator light of the locking device and a switching indicator light of the grounding disconnecting link. IN fig. 6, lcp_in represents an on module of the embedded intelligent terminal, and lcp_out represents an on module of the embedded intelligent terminal.
Optionally, the high-voltage switch device may have multiple embedded intelligent terminals and multiple switch devices, where each switch device corresponds to one embedded intelligent terminal; and all the embedded intelligent terminals are in communication connection through a network module. One of the plurality of embedded intelligent terminals is in communication connection with the protection device through the network module. For example, referring to fig. 7, the embedded intelligent terminals are connected in series, so that the number of network interfaces directly connected with the protection device is reduced.
In this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Each embodiment is mainly described and is different from other embodiments, and the same similar parts among the embodiments are mutually referred.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (3)
1. A high voltage switchgear, comprising: a plurality of embedded intelligent terminals and a plurality of switching devices, each switching device corresponds to one embedded intelligent terminal, wherein first switching device includes: a circuit breaker; wherein a second of said switching means comprises: a grounding disconnecting link; wherein a third of said switching means comprises: an in-situ control cabinet;
the embedded intelligent terminal comprises a processor module, and an opening module, an opening module and a network module which are respectively connected with the processor module;
the switch-in module is used for directly collecting switch position signals of the switch device;
the processor module is used for carrying out jitter elimination processing on the switch position signal and decoding a protection command issued by the protection device to obtain a control signal of an execution element of the switch device;
the opening module is directly connected with the execution element of the switching device and is used for outputting a control signal of the execution element of the switching device to realize direct control of the execution element of the switching device;
the network module is used for being in communication connection with the protection device;
when the switch device is a breaker, the corresponding switch position signals collected by the embedded intelligent terminal comprise a position signal of the breaker, a position signal of the locking device, a position signal of the gate control switch, a position signal of the closing energy storage and a motor overheat alarm signal; the actuating element of the circuit breaker comprises an illuminating lamp, a split coil, an energy storage motor and an interlocking motor;
when the switch device is a grounding switch, the corresponding switch position signals collected by the embedded intelligent terminal comprise a position signal of the grounding switch, a position signal of a limit switch and a motor overheat alarm signal; the executive component of the grounding disconnecting link comprises an illuminating lamp, an electromagnet, a brake and a motor;
when the switch device is a local control cabinet, the corresponding switch position signals collected by the embedded intelligent terminal comprise position signals of an overhaul handle, position signals of a local remote operation handle, position signals of a manual opening and closing handle and signals of a reset button;
the actuating element of the on-site control cabinet comprises a switching indicator light of a circuit breaker, a switching indicator light of a locking device and a switching indicator light of a grounding disconnecting link.
2. The high voltage switching device of claim 1, wherein the network module comprises: an optical fiber input interface and an optical fiber output interface.
3. The high-voltage switch device according to claim 1, wherein each of the embedded intelligent terminals is in communication connection with each other through the network module;
and one of the plurality of embedded intelligent terminals is in communication connection with the protection device through the network module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911052642.5A CN112751264B (en) | 2019-10-31 | 2019-10-31 | High-voltage switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911052642.5A CN112751264B (en) | 2019-10-31 | 2019-10-31 | High-voltage switching device |
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| Publication Number | Publication Date |
|---|---|
| CN112751264A CN112751264A (en) | 2021-05-04 |
| CN112751264B true CN112751264B (en) | 2024-03-08 |
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| CN201911052642.5A Active CN112751264B (en) | 2019-10-31 | 2019-10-31 | High-voltage switching device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102244415A (en) * | 2010-05-11 | 2011-11-16 | 北京亿旗创新科技发展有限公司 | Intelligent relay protector of network |
| CN202906577U (en) * | 2012-11-05 | 2013-04-24 | 西安西瑞保护控制设备有限责任公司 | Intelligent breaker control box |
| CN103904779A (en) * | 2014-04-18 | 2014-07-02 | 国家电网公司 | Intelligent substation intelligent terminal analog device and using method thereof |
| CN110112712A (en) * | 2019-04-30 | 2019-08-09 | 广东电网有限责任公司 | Power distribution network earth protective device and its sampling control method with the configuration of double mutual inductors |
-
2019
- 2019-10-31 CN CN201911052642.5A patent/CN112751264B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102244415A (en) * | 2010-05-11 | 2011-11-16 | 北京亿旗创新科技发展有限公司 | Intelligent relay protector of network |
| CN202906577U (en) * | 2012-11-05 | 2013-04-24 | 西安西瑞保护控制设备有限责任公司 | Intelligent breaker control box |
| CN103904779A (en) * | 2014-04-18 | 2014-07-02 | 国家电网公司 | Intelligent substation intelligent terminal analog device and using method thereof |
| CN110112712A (en) * | 2019-04-30 | 2019-08-09 | 广东电网有限责任公司 | Power distribution network earth protective device and its sampling control method with the configuration of double mutual inductors |
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| Publication number | Publication date |
|---|---|
| CN112751264A (en) | 2021-05-04 |
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