A conversion module and circuit suitable for relay protection device screen changeover reconstruction

Abstract

The utility model discloses a kind of conversion module and circuit suitable for taking screen reconstruction of relay protection device, comprising: public board;Several public board contacts, each public board contact is located on the public board, the first end of each public board contact is used to be connected with the corresponding external wire on screen cabinet;Female board;Several female board contacts, each female board contact is located on the female board, and its first end is used to be connected with the backplate contact of new relay protection device;Several internal wires, both ends of each internal wire are respectively corresponding the second end of public board contact and the second end of female board contact.The utility model is defined by matching the backplate of new device, compatible with the backplate definition of old device, realize quick replacement old relay protection device, simple operation, save time and cost.

Description

Technical Field

[0001] This utility model belongs to the field of power system relay protection, specifically relating to a conversion module and circuit suitable for the screen-removal modification of relay protection devices. Background Technology

[0002] Relay protection devices are widely used in power system substations, power plants, and user stations, serving as the first line of defense for ensuring the safe and stable operation of the power system. Currently, there is a large demand for the replacement of old relay protection devices in the field. The traditional method of retrofitting relay protection devices requires reverse wiring, and the requirements and methods for retrofitting relay protection devices are as follows: high reliability, high speed, low economic cost, and low time cost.

[0003] To address the aforementioned issues, this utility model provides a conversion module and circuit suitable for the screen-removal retrofit of relay protection devices. When it is necessary to replace an old relay protection device, the male board contacts of the conversion module are connected to the external wires that were originally connected to the old relay protection device, and the female board contacts are connected to the back board contacts of the new relay protection device, enabling rapid replacement and thus saving costs and time. Utility Model Content

[0004] To address the aforementioned issues, this utility model proposes a conversion module and circuit suitable for the retrofitting of relay protection devices by removing the screen. This allows the conversion module to quickly replace old relay protection devices and install new ones, simplifying the installation process and saving time and costs.

[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0006] In a first aspect, this application provides a conversion module suitable for the retrofitting of relay protection devices, comprising:

[0007] Public board;

[0008] Several public board contacts are provided on the public board, and the first end of each public board contact is used to connect to the corresponding external wire on the cabinet.

[0009] motherboard;

[0010] Several motherboard contacts are provided on the motherboard, and their first ends are used to connect to the backplane contacts of the new relay protection device.

[0011] Several internal wires, each with its two ends corresponding to the second end of the male board contact and the second end of the female board contact, respectively.

[0012] The above technical solution allows the male board contacts to be fully compatible with the backplane contacts of the old relay protection device and to be connected to the external conductors. Before the old relay protection device is removed, the external conductors are connected to the old relay protection device. The female board contacts are fully compatible with the backplane contacts of the new relay protection device. The internal conductors connect the corresponding contacts of the male and female boards according to the backplane contact definitions of the old and new devices, simplifying the renovation and construction process and reducing the renovation time and economic cost.

[0013] Optionally, the public plate is provided with a first connection hole.

[0014] The above technical solution can be connected and fixed to the motherboard.

[0015] Optionally, the first connecting hole is a bolt hole.

[0016] Optionally, the mother plate is provided with a second connection hole.

[0017] The above technical solution can be connected and fixed with the public board.

[0018] Optionally, the second connecting hole is a bolt hole.

[0019] Optionally, the conversion module further includes a connector that passes through a first connection hole and a second connection hole in sequence to connect the male board and the female board.

[0020] Optionally, the connector is a bolt.

[0021] The above technical solution, with its bolt and bolt hole fixing method, is highly reliable and easy to disassemble.

[0022] Optionally, the connection method between the internal wires inside the conversion module and the motherboard and maleboard contacts can be any one of welding, screwing, and crimping.

[0023] Secondly, this application also provides a circuit, including the conversion module described in any one of the first aspects, suitable for the screen-removal modification of a relay protection device.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] This utility model provides a conversion module and circuit suitable for the retrofitting of relay protection devices by removing the screen panel. When it is necessary to replace an old relay protection device, the male board contact of the conversion module is connected to the external wires that were originally connected to the old relay protection device on the panel cabinet, and the female board contact is connected to the back board contact of the new relay protection device. There is no need to remove or modify the original external wires, nor is it necessary to match wires and contacts on site. This solves the problem of reverse wiring required by the traditional method of retrofitting relay protection devices by removing the screen panel. It can reduce the time for retrofitting drawings, simplify the on-site construction wiring process, reduce construction difficulty, and reduce power outage time.

[0026] The internal wires can connect the corresponding contacts of the male and female boards according to the back panel contact definitions of the new and old devices. The male and female boards are connected by bolts, which facilitates the disassembly of the male board and template and the adjustment of the connection method between the internal wires and the contacts of the female board and the male board. Attached Figure Description

[0027] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0028] Figure 1 This is a three-dimensional diagram of a conversion module suitable for the screen-removal modification of a relay protection device according to the present invention.

[0029] Figure 2 This is a front view of a conversion module applicable to the screen-removal modification of a relay protection device according to this utility model.

[0030] Figure 3 This is a top view of a conversion module applicable to the screen-removal modification of a relay protection device according to this utility model.

[0031] Wherein: 1-male board, 2-male board contact, 3-first connecting hole, 4-internal wire, 5-second connecting hole, 6-female board, 7-female board contact. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the scope of protection of this utility model.

[0033] In the description of this utility model patent, it should be noted that the terms "upper", "lower", "left", "right", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model patent.

[0034] In the description of this utility model patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] The application principle of this utility model will be described in detail below with reference to the accompanying drawings.

[0036] Example 1

[0037] like Figure 1 As shown, this embodiment provides a conversion module suitable for the retrofitting of relay protection devices, including:

[0038] Public board 1;

[0039] Several public board contacts 2 are provided on the public board 1. The first end of each public board contact 2 is used to connect to the corresponding external wire on the cabinet. In the specific implementation process, the number of public board contacts 2 of the conversion module should be set according to the specific back panel location of the old relay protection device to ensure the matching of the two and the correspondence of the two in spatial position.

[0040] The above technical solution uses an independent public board contact 2, whose attribute definition is based on the backplane definition of the old relay protection device, in order to be compatible with and replace the backplane definition of the old device.

[0041] Motherboard 6; In the specific implementation process, the dimensions and materials of the male board 1 and the motherboard 6 of the conversion module are determined by the designers through load calculations.

[0042] Several motherboard contacts 7 are provided on the motherboard 6, and their first ends are used to connect to the backplane contacts of the new relay protection device. In the specific implementation process, the number of motherboard contacts 7 of the conversion module should be set according to the specific backplane contact points of the new relay protection device to ensure the matching of the two and the correspondence of the two in spatial position. The size and structure of the motherboard contacts 7 and the male board contacts 2 should be determined according to the size and structure of the backplane contacts of the new and old relay protection devices to meet the dimensional tolerance matching relationship between the contacts of the conversion module and the backplane contacts of the relay protection device.

[0043] The above technical solution uses an independent motherboard contact 7, whose attribute definition is based on the backplane definition of the new relay protection device, to match the backplane definition of the new device.

[0044] Several internal wires 4 are provided, with each internal wire 4 having its two ends corresponding to the second end of the male board contact 2 and the second end of the female board contact 7, respectively. In specific implementation, the material of the internal wires 4 of the conversion module should match the properties of the male board contact 2 and the female board contact 7. For example, a 2.5mm² flexible wire can be used for voltage sampling points, a 4mm² flexible wire can be used for current sampling points, and a 1mm² flexible wire can be used for input signal points.

[0045] In the above technical solution, the internal conductor 4 is used to establish a one-to-one correspondence between the motherboard contact 7 and the male board contact 2, ensuring the compatibility and replacement of the old and new relay protection devices.

[0046] In one specific embodiment of this example, the male plate 1 is provided with a first connecting hole 3.

[0047] In one specific embodiment of this example, the first connecting hole 3 is a bolt hole.

[0048] In one specific embodiment of this example, the mother plate 6 is provided with a second connecting hole 5.

[0049] In one specific embodiment of this invention, the second connecting hole 5 is a bolt hole. In practice, the second connecting hole 5 of the conversion module is used to connect the mother plate 6 and the male plate 1, and the material and diameter of the matching bolts and nuts must meet the load requirements.

[0050] In the above technical solution, the first connecting hole 3 and the second connecting hole 5 are used to match the bolts to realize the connection between the mother plate 6 and the male plate 1, so as to provide the stability and reliability of the overall structure.

[0051] In one specific embodiment of this example, the conversion module further includes a connector that passes through the first connecting hole 3 and the second connecting hole 5 in sequence to connect the male plate 1 and the female plate 6.

[0052] In one specific embodiment of this example, the connecting member is a bolt.

[0053] In one specific embodiment of this invention, the connection method between the internal wire 4 inside the conversion module and the motherboard contact 7 and the male board contact 2 can be any one of welding, screwing, or crimping. In actual implementation, the connection method between the internal wire 4 and the motherboard contact 7 and the male board contact 2 should be flexibly configured according to the actual needs of the site.

[0054] The following is combined with Figures 1 to 3 The installation process of a conversion module suitable for the screen-mounting retrofit of relay protection devices in this embodiment is described in detail:

[0055] First, the male board contact 2 on the male board 1 in the conversion module is set according to the backplane contact points of the old relay protection device, so that the male board contact 2 is fully compatible with the backplane contact points of the old relay protection device. Then, the female board contact 7 on the female board 6 in the conversion module is set according to the backplane contact points of the new relay protection device, so that the female board contact 7 is fully compatible with the backplane contact points of the new relay protection device. Next, according to the backplane contact point definitions of the old and new devices, the corresponding contacts of the male board 1 and the female board 6 are connected by internal wires 4. Finally, the male board and the female board are connected and fixed by bolts to complete the assembly of the conversion module.

[0056] Remove the old relay protection device from inside the cabinet, disconnect the old relay protection device from the external wires without rewiring, connect the external wires to the corresponding male board contact 2, and connect the female board contact 7 on the other side of the adapter to the new relay protection device to complete the replacement of the old and new relay protection devices.

[0057] Example 2

[0058] This utility model provides a circuit including the conversion module described in Embodiment 1 for retrofitting relay protection devices. In one specific embodiment, after the old relay protection device is removed, its original external wires are not disconnected. The external wires are connected to the new relay protection device through the conversion module, thus connecting the new relay protection device to the circuit.

[0059] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A conversion module suitable for the retrofitting of relay protection devices, characterized in that, include: Public board (1); Several public board contacts (2) are provided on the public board (1), and the first end of each public board contact (2) is used to connect to the corresponding external wire on the cabinet. Motherboard (6); Several motherboard contacts (7) are provided on the motherboard (6), and their first ends are used to connect to the backplane contacts of the new relay protection device. Several internal wires (4), the two ends of each internal wire (4) correspond to the second end of the male plate contact (2) and the second end of the female plate contact (7), respectively.

2. The conversion module for retrofitting relay protection devices according to claim 1, characterized in that, The male plate (1) is provided with a first connecting hole (3).

3. The conversion module for retrofitting relay protection devices according to claim 2, characterized in that, The first connecting hole (3) is a bolt hole.

4. The conversion module for retrofitting relay protection devices according to claim 2, characterized in that, The mother plate (6) is provided with a second connecting hole (5).

5. The conversion module for retrofitting relay protection devices according to claim 4, characterized in that, The second connecting hole (5) is a bolt hole.

6. The conversion module for retrofitting relay protection devices according to claim 4, characterized in that, The conversion module also includes a connector that passes through the first connecting hole (3) and the second connecting hole (5) in sequence to connect the male plate (1) and the female plate (6).

7. The conversion module for retrofitting relay protection devices according to claim 6, characterized in that, The connecting component is a bolt.

8. The conversion module for retrofitting relay protection devices according to claim 1, characterized in that, The connection method between the internal wire (4) and the mother plate contact (7) and the male plate contact (2) is any one of welding, screwing and crimping.

9. A circuit, characterized in that... The conversion module, as described in any one of claims 1-8, is applicable to the retrofitting of relay protection devices with screen removal.

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