CN211789899U - Voltage secondary circuit switching device - Google Patents
Voltage secondary circuit switching device Download PDFInfo
- Publication number
- CN211789899U CN211789899U CN202020722831.0U CN202020722831U CN211789899U CN 211789899 U CN211789899 U CN 211789899U CN 202020722831 U CN202020722831 U CN 202020722831U CN 211789899 U CN211789899 U CN 211789899U
- Authority
- CN
- China
- Prior art keywords
- secondary circuit
- voltage
- voltage secondary
- circuit switching
- switching device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007704 transition Effects 0.000 claims 2
- 238000005259 measurement Methods 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a voltage secondary circuit switching device, it includes a plurality of switching channels that can independently accomplish voltage secondary circuit switching operation. Through setting up a plurality of switching channels that can independently accomplish voltage secondary circuit switching operation, closed auto-change over device when having avoided changing the plug-in components causes the secondary circuit to lose electricity to the problem of the normal operating of relay protection, measurement and measurement system secondary voltage circuit in the influence transformer substation has improved the efficiency of transformer substation's maintenance work, the operation of guarantee electric wire netting safe and reliable.
Description
Technical Field
The utility model relates to a power equipment technical field especially relates to a voltage secondary circuit switching device.
Background
In a conventional substation, if an internal alarm of the voltage switching device occurs, the relevant plug-in of the voltage switching device needs to be replaced. However, the situation is not that the voltage transformer has a problem, and the switching device needs to be closed when the plug-in is replaced, so that the normal operation of a secondary voltage loop of a relay protection, measurement and metering system in the transformer substation is seriously affected to a great extent, and the safe and stable operation of a power grid is affected.
Aiming at the situations, a voltage secondary circuit switching device is developed, has simple structure, stable performance and convenient use, is applied to the replacement work of related plug-in units of a voltage switching device, and can treat the abnormal defects of the device under the condition that the secondary circuit of a voltage transformer is not powered off.
SUMMERY OF THE UTILITY MODEL
The utility model provides a voltage secondary circuit switching device aims at.
The utility model provides a voltage secondary circuit switching device, it includes a plurality of switching channels that can independently accomplish voltage secondary circuit switching operation.
Furthermore, each of the switching channels includes two pair connection interfaces respectively connected with the secondary circuit terminals at the two ends of the plug-in unit.
Furthermore, the connection interfaces are respectively connected with a test interface which can be used for measuring line voltage.
Further, a switch is connected in series between the test interfaces.
Further, the connection interface adopts a general interface.
The embodiment of the utility model provides a through setting up a plurality of switching channels that can independently accomplish voltage secondary circuit switching operation, close auto-change over device when having avoided changing the plug-in components, cause the secondary circuit to lose the electricity to influence relay protection in the transformer substation, measure and the problem of the normal operating in measurement system secondary voltage circuit, improved the efficiency of transformer substation's maintenance work, guarantee electric wire netting safe and reliable's operation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
Fig. 1 is a schematic structural diagram of a voltage secondary circuit switching device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
Please refer to fig. 1, which is a schematic structural diagram of a voltage secondary circuit switching device according to an embodiment of the present invention, the voltage secondary circuit switching device includes a plurality of switching channels (e.g., 1-n channels shown in the figure) that can independently complete switching operation of the voltage secondary circuit.
Specifically, n groups of switching channels can be arranged according to specific needs, and each group of switching channels can be communicated normally and do not interfere with each other. Through setting up a plurality of switching channels that can independently accomplish voltage secondary circuit switching operation, closed auto-change over device when having avoided changing the plug-in components causes the secondary circuit to lose electricity to the problem of the normal operating of relay protection, measurement and measurement system secondary voltage circuit in the influence transformer substation has improved the efficiency of transformer substation's maintenance work, the operation of guarantee electric wire netting safe and reliable.
In one embodiment, each of the plurality of patch channels includes two mating interfaces that respectively interface with the secondary loop terminals on the two sides of the insert.
Specifically, each switching channel of the voltage secondary circuit switching device may be provided with two external connection interfaces A, B, for example, and the connection interfaces A, B may be connected to the secondary circuit terminals at the two ends of the plug respectively through cables.
In one embodiment, the connection interfaces are respectively connected with a test interface which can be used for measuring line voltage.
Specifically, two connection interfaces of the voltage secondary circuit switching device are respectively connected with one test interface Ta and one test interface Tb, and the line voltage condition can be measured through the test interfaces Ta and Tb for fault judgment.
In one embodiment, a switch is connected in series between the test interfaces.
In one embodiment, the connection interface is a universal interface.
Specifically, two test interfaces Ta and Tb of the voltage secondary circuit switching device are connected with two ends of the same switch S, the structure of the voltage secondary circuit switching device is simple, the connection interfaces use universal interfaces, and the matching connection lines are easy to obtain.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A voltage secondary circuit switching device is characterized by comprising a plurality of switching channels which can independently complete the switching operation of the voltage secondary circuit.
2. The voltage secondary loop transition device of claim 1, wherein each of said transition channels comprises two pair connection interfaces for respectively connecting to secondary loop terminals at both ends of the insert.
3. The apparatus according to claim 2, wherein the connection interfaces are respectively connected with a test interface for measuring line voltage.
4. The apparatus of claim 3, wherein a switch is connected in series between the test interfaces.
5. The apparatus according to claim 2, wherein the connection interface is a universal interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020722831.0U CN211789899U (en) | 2020-05-06 | 2020-05-06 | Voltage secondary circuit switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020722831.0U CN211789899U (en) | 2020-05-06 | 2020-05-06 | Voltage secondary circuit switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211789899U true CN211789899U (en) | 2020-10-27 |
Family
ID=72956619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020722831.0U Active CN211789899U (en) | 2020-05-06 | 2020-05-06 | Voltage secondary circuit switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211789899U (en) |
-
2020
- 2020-05-06 CN CN202020722831.0U patent/CN211789899U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103604998A (en) | Method for measuring electric conduction loop resistance of circuit breaker | |
| CN102280864B (en) | Post-failure live treatment method for protection device of distribution network system and portable protection device | |
| CN201327509Y (en) | High-voltage transmission line parameter measuring device and system thereof | |
| CN109061451B (en) | Monitoring method and system for lightning arrester of hybrid direct current circuit breaker | |
| CN101403779A (en) | Parameter measuring apparatus and system for high tension power line | |
| CN106885959B (en) | Test method for replacing short-circuit copper bar by grounding knife switch in power plant electric main start test | |
| CN211789899U (en) | Voltage secondary circuit switching device | |
| CN203838295U (en) | Electric fixture for measuring withstand voltage and leakage current | |
| CN202206125U (en) | Portable protection device for electrification process after distribution system protection device failure | |
| CN109738757A (en) | Acquisition terminal is used in a kind of identification of separate type low voltage failure cable | |
| CN105186490A (en) | Circuit breaker with zero line and phase line breaking detection function and circuit breaker system with zero line and phase line breaking detection function | |
| CN204992580U (en) | Expanded not repeated fixed measuring equipment of dual power supply | |
| CN209056924U (en) | Connection circuit for power station unit transformer and main transformer | |
| CN202034694U (en) | Dual power supply 10kV power distribution device | |
| CN215375546U (en) | Multifunctional electricity meter with uninterrupted power supply verification function | |
| CN219247479U (en) | DC control power supply loop of medium-voltage distribution system and medium-voltage distribution system | |
| CN110504756A (en) | A kind of ring network cabinet protective device control system | |
| CN102646940A (en) | Double-power 10KV power distribution device | |
| CN217212867U (en) | Direct type three-phase electric energy meter uninterrupted replacing device | |
| CN216051861U (en) | Secondary circuit live-line sealing device of current transformer | |
| CN204992274U (en) | Dual supply massive quantity power supply and high expanded not repeated fixed measuring equipment of low meter that supplies | |
| CN210155279U (en) | Multi-cable motor test platform | |
| CN105375341A (en) | Dual-power 10KV power distribution device | |
| CN216082973U (en) | Current grounding line selection circuit | |
| CN211577349U (en) | Buckle type test loop quick connection structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |