High-voltage power distribution cabinet
By setting up relays in the secondary line module of the high-voltage distribution cabinet to control the connection relationship of each contact, the problem of easy damage to the connection points of the secondary line module is solved and the service life of the equipment is extended.
Patent Information
- Application Number
- CN202421836383.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The connection points of the secondary line module of the high-voltage distribution cabinet are easily damaged, resulting in a shortening of the equipment life.
By setting up a relay in the secondary line module of the high-voltage distribution cabinet, the relay is used to control the connection relationship of each contact, and mechanical damage to the connection nodes by human connection is reduced.
It reduces the number of connections at the connection points, avoids mechanical damage to the connection nodes by human connection, and extends the service life of the high-voltage distribution cabinet.
Smart Images
Figure CN222940391U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of high-voltage switchgear, and more specifically, to a high-voltage switchgear. Background Art
[0002] High-voltage power distribution equipment is one of the most widely used equipment in the power system, and it is also the most critical terminal power equipment in places such as substation and distribution station of the power distribution network system, power distribution room of industrial enterprises, and distribution room of residential communities. High-voltage power distribution equipment is generally divided into primary circuit, secondary circuit module, and communication circuit. The secondary circuit module includes circuits such as voltage, current, control, and signal, with a wide variety of types and a large number of wire harnesses.
[0003] For the high-voltage switchgear required for training, because it needs to meet the needs of teaching and competitions, fault points are set for the secondary circuit module. Then, the operator will check the pre-set fault points. During the checking process, the connection points will be connected multiple times. And because the force used by the operator when connecting the connection points is inconsistent, it is easy to cause damage to the connection points of the secondary circuit module, reducing the service life of the high-voltage power distribution equipment. Summary of the Invention
[0004] The content part of this application is used to briefly introduce concepts, which will be described in detail in the following specific implementation part. The content part of this application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.
[0005] To solve the technical problems mentioned in the above background art part, this application provides a high-voltage switchgear, including: a secondary circuit module;
[0006] Relays, multiple in number, are connected in series or in parallel in the secondary circuit module;
[0007] A control switch is connected to the relay through a wire, and is used to control the on / off of the relay to adjust the connection relationship between the contacts in the secondary circuit module.
[0008] In the technical solution provided by this application, the connection relationship between the contacts in the secondary circuit module is controlled by relays. Therefore, when conducting inspections, it is not necessary to frequently connect the corresponding connection points, so the number of connections of the connection points is reduced. And the closing of the relay replaces the connection of the connection nodes, so mechanical damage to the connection nodes caused by manual connection is avoided, increasing the service life of the high-voltage switchgear.
[0009] Further, the secondary circuit module further includes an integrated protection device.
[0010] Further, the high-voltage switchgear further includes a high-voltage circuit breaker, and the high-voltage circuit breaker is connected to the secondary circuit module.
[0011] Further, the high-voltage switchgear cabinet further includes a tripping indicator light and a closing indicator light, and the high-voltage circuit breaker is respectively connected to the tripping indicator light and the closing indicator light;
[0012] Further, at least one relay is connected in series between the closing output point of the comprehensive protection device and the closing circuit of the high-voltage switchgear cabinet.
[0013] This relay can be used to indicate the connection relationship between the closing circuit and the closing output point.
[0014] Further, at least one relay is connected in series between the tripping output point of the comprehensive protection device and the tripping circuit of the high-voltage switchgear cabinet.
[0015] Further, at least one relay is connected in series between the closing input point of the comprehensive protection device and the first closing and tripping switch of the high-voltage switchgear cabinet.
[0016] Further, at least one relay is connected in series between the tripping input point of the comprehensive protection device and the second closing and tripping switch of the high-voltage switchgear cabinet.
[0017] Further, one end of at least one relay is connected to the tripping indicator light, and the other end is respectively connected to the tripping monitoring point of the comprehensive protection device and the tripping output point of the high-voltage circuit breaker.
[0018] Further, one end of at least one relay is connected to the closing indicator light, and the other end is respectively connected to the closing monitoring point of the comprehensive protection device and the closing output point of the high-voltage circuit breaker.
[0019] Further, one end of at least one relay is connected to the energy storage motor of the high-voltage circuit breaker, and the other end is connected to the energy storage switch of the high-voltage circuit breaker.
[0020] Further, one end of at least one relay is connected to the protection tripping inlet of the comprehensive protection device, and the other end is connected to the first closing and tripping switch of the high-voltage switchgear cabinet.
[0021] Further, one end of at least one relay is connected to the protection closing inlet of the comprehensive protection device, and the other end is connected to the second closing and tripping switch of the high-voltage switchgear cabinet. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The drawings constituting a part of this application are used to provide a further understanding of this application, making other features, objectives, and advantages of this application more obvious. The schematic embodiments and descriptions of the drawings of this application are used to explain this application and do not constitute an improper limitation of this application.
[0023] In addition, throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic and the elements and components are not necessarily drawn to scale.
[0024] In the drawings:
[0025] Figure 1 is a schematic diagram of a high-voltage switchgear cabinet.
[0026] Figure 2 is a circuit diagram of a secondary circuit module.
[0027] Figure 3 is a circuit diagram of the location where the relay 7 is located. Detailed Description of the Invention
[0028] Embodiments of the present application will be described in more detail below with reference to the drawings. Although some embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present application. It should be understood that the drawings and embodiments of the present application are only for exemplary purposes and are not used to limit the protection scope of the present application.
[0029] In addition, it should be noted that, for the sake of convenience of description, only the parts related to the relevant invention are shown in the drawings. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0030] The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.
[0031] Referring to Figure 1 , a high-voltage switchgear cabinet includes: a secondary circuit module, a relay, and a control switch; wherein, both the high-voltage switchgear cabinet and the relay are prior arts. The relay is a switch that makes the contacts close when energized and makes the contacts open when de-energized. The control switch is electrically connected to the relay. When the control switch is closed, the relay is energized, and then the corresponding switch of the relay closes. Similarly, when the control switch is open, the corresponding switch of the relay opens. A plurality of relays are provided and are arranged in series or in parallel in the secondary circuit module. The secondary circuit module is a general term for the secondary circuit in the high-voltage switchgear cabinet.
[0032] The secondary circuit module generally includes an integrated protection device for protecting the circuit. The high-voltage switchgear cabinet further includes a high-voltage circuit breaker, the high-voltage circuit breaker is connected to the secondary circuit module, the high-voltage switchgear cabinet further includes a tripping indicator light and a closing indicator light, and the high-voltage circuit breaker is respectively connected to the tripping indicator light and the closing indicator light.
[0033] The above are the features involved in the high-voltage switchgear cabinet related to the solution provided in this application. The specific circuit structure of the high-voltage switchgear cabinet will not be shown in this application.
[0034] The circuit breaker is connected in parallel or in series in the secondary circuit, and is actually used to simulate the corresponding fault point. When students troubleshoot faults, they analyze the circuit, but the final operation method is to control the opening and closing of the relay with a control switch.
[0035] At least one relay is connected in series between the closing output point A05 of the integrated protection device and the closing circuit DL1 of the high-voltage switchgear cabinet. In the example of this application, this relay is Relay 1, and the specific position is referred to Figure 2 .
[0036] At least one relay is connected in series between the opening output point A12 of the integrated protection device and the opening circuit DL2 of the high-voltage switchgear cabinet. In the example of this application, this relay is Relay 2, and the specific position is referred to Figure 2 .
[0037] The positions of the above two relays are used to design faults for the relevant circuits at the closing output point and opening output point of the integrated protection device.
[0038] At least one relay is connected in series between the closing input point A04 of the integrated protection device and the first closing and opening switch KK-1 of the high-voltage switchgear cabinet.
[0039] In the example of this application, this relay is Relay 3, and the specific position is referred to Figure 2 .
[0040] Further, at least one relay is connected in series between the opening input point A08 of the integrated protection device and the second closing and opening switch KK-2 of the high-voltage switchgear cabinet. In the example of this application, this relay is Relay 4, and the specific position is referred to Figure 2 .
[0041] The positions of the above two relays are used to design faults for the relevant circuits at the closing input point and opening input point of the integrated protection device.
[0042] Further, one end of at least one relay is connected to the opening indicator light LD, and the other end is respectively connected to the opening monitoring point A10 of the integrated protection device and the opening output point DL3 of the high-voltage circuit breaker. In the example of this application, this relay is Relay 5, and the specific position is referred to Figure 2 .
[0043] Further, one end of at least one relay is connected to the closing indicator light HD, and the other end is respectively connected to the closing monitoring point A09 of the integrated protection device and the closing output point DL4 of the high-voltage circuit breaker. In the example of this application, this relay is Relay 6, and the specific position is referred toFigure 2 。
[0044] Further, one end of at least one relay is connected to the energy storage motor M1 of the high-voltage circuit breaker, and the other end is connected to the energy storage switch CK1 of the high-voltage circuit breaker. In the example of this application, the relay is Relay 7, and for the specific location, refer to Figure 3 。
[0045] Further, one end of at least one relay is connected to the protection opening entrance A17 of the integrated protection device, and the other end is connected to the first switching switch KK-1 of the high-voltage power distribution cabinet. This relay is connected in parallel with the second switching switch KK-2. In the example of this application, the relay is Relay 8, and for the specific location, refer to Figure 2 。
[0046] Further, one end of at least one relay is connected to the protection closing A15 entrance of the integrated protection device, and the other end is connected to the second switching switch KK-2 of the high-voltage power distribution cabinet. This relay is connected in parallel with the first switching switch KK-1. In the example of this application, the relay is Relay 9, and for the specific location, refer to Figure 2 。
[0047] The above description is only some preferred embodiments of this application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this application is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the embodiments of this application.
Claims
1. A high voltage distribution cabinet, comprising: Secondary circuit module; It is characterized in that the high-voltage power distribution cabinet further comprises: Relays are provided in plurality and are arranged in series or in parallel in the secondary circuit module; Control switch, connected to relay through wires.
2. A high voltage distribution cabinet according to claim 1, characterized in that: The secondary circuit module also includes a comprehensive protection device.
3. A high voltage distribution cabinet according to claim 1, characterized in that: The high-voltage power distribution cabinet also includes a high-voltage circuit breaker, which is connected to the secondary line module.
4. A high voltage distribution cabinet according to claim 3, characterized in that: The high-voltage power distribution cabinet also includes an opening indicator light and a closing indicator light, and the high-voltage circuit breaker is connected to the opening indicator light and the closing indicator light respectively.
5. A high voltage distribution cabinet according to claim 2, characterized in that: At least one relay is connected in series between the closing output point of the integrated protection device and the closing circuit of the high-voltage distribution cabinet; At least one relay is connected in series between the opening output point of the integrated protection device and the opening circuit of the high-voltage distribution cabinet.
6. A high voltage distribution cabinet according to claim 2, characterized in that: At least one relay is connected in series between the closing input point of the integrated protection device and the first opening and closing switch of the high-voltage distribution cabinet; At least one relay is connected in series between the opening input point of the integrated protection device and the second opening and closing switch of the high-voltage distribution cabinet.
7. A high voltage distribution cabinet according to claim 4, characterized in that: At least one end of a relay is connected to a trip indicator light, and the other end is connected to a trip monitoring point of a comprehensive protection device and a trip output point of a high-voltage circuit breaker respectively; One end of at least one relay is connected to the closing indicator light, and the other end is respectively connected to the closing monitoring point of the integrated protection device and the closing output point of the high-voltage circuit breaker.
8. A high voltage distribution cabinet according to claim 3, characterized in that: At least one relay has one end connected to the energy storage motor of the high-voltage circuit breaker and the other end connected to the energy storage switch of the high-voltage circuit breaker.
9. A high voltage distribution cabinet according to claim 2, characterized in that: One end of at least one relay is connected to the protection switch inlet of the integrated protection device, and the other end is connected to the first opening and closing switch of the high-voltage distribution cabinet; One end of at least one relay is connected to the protection closing input of the integrated protection device, and the other end is connected to the second opening and closing switch of the high-voltage distribution cabinet.