Three-phase short circuit device

Abstract

The utility model provides a three-phase short-circuit device. The three-phase short-circuit device comprises a short-circuit board and three plugs used for being electrically connected with three-phase sockets of power equipment respectively. Each plug comprises a connector used for being fixedly connected with the socket and a plug pin assembly used for being electrically connected with the socket. The connector of each plug is connected with the short circuit board. The plug pin assembly of each plug is arranged in the corresponding connector and electrically connected with the corresponding short circuit board. When the connectors of the three plugs are connected with the three-phase socket, one end of the bolt assembly of each plug is electrically connected with the socket, and the other end of the bolt assembly of each plug is electrically connected through the short circuit board, thereby realizing short circuit of the three-phase socket. The three-phase short circuit device provided by the utility model is convenient to operate, and can quickly realize three-phase short circuit of a socket of power equipment, thereby improving the use convenience and the use efficiency. In addition, the three-phase short circuit device is compact and reasonable in structure, can greatly reduce the use space, and is suitable for realizing three-phase short circuit of the socket in a limited space.

Description

Technical Field

[0001] This utility model relates to the field of power system technology, and more specifically, to a three-phase short-circuit device. Background Technology

[0002] When conducting dynamic and thermal stability tests on power equipment with quick-plug functionality, such as 10kV medium-voltage emergency power supply interface sets, the quick-plug sockets must be short-circuited in three phases according to the requirements of test standard GB / T 11022.

[0003] Currently, the common practice is to use three test cables to short-circuit the three phases of the electrical equipment socket. Each test cable is a single section, with a quick-plug connector at one end for connection to the socket, and a terminal block crimped at the other end. The terminals of the three test cables are then connected together using a copper busbar to achieve the three-phase short circuit. However, this method of short-circuiting with three test cables is cumbersome. After the test cables are plugged into the socket, terminal crimping and short-circuiting with a copper busbar are required. Furthermore, since the test cables are flexible, a support frame is needed to secure them after short-circuiting. This not only significantly reduces the convenience and efficiency of the test but also occupies additional space. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and provide a three-phase short-circuiting device. This device is easy to operate and can quickly achieve three-phase short-circuiting of electrical equipment sockets, thereby improving convenience and efficiency. Furthermore, this device has a compact and reasonable structure, which can greatly reduce the space required, making it suitable for achieving three-phase short-circuiting of electrical equipment sockets in limited spaces.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a three-phase short-circuiting device, characterized in that it includes a short-circuiting plate and three plugs for electrical connection and fixation to a three-phase socket of a power device; each plug includes a connector for connection to the socket and a pin assembly for electrical connection to the socket; the connector of each plug is connected to the short-circuiting plate; the pin assembly of each plug is disposed inside the connector and is electrically connected to the short-circuiting plate; when the connectors of the three plugs are connected to the three-phase socket, one end of the pin assembly of each plug is electrically connected to the socket, and the other end is electrically connected through the short-circuiting plate, thereby achieving a three-phase socket short circuit.

[0006] In the above solution, the connector of the three-phase short-circuiting device of this utility model is connected and fixed to the socket, so that the plug assembly is electrically connected to the three-phase socket of the power equipment. Furthermore, the plug assembly is short-circuited via the short-circuiting plate, enabling quick plugging and unplugging of the power equipment socket for three-phase short-circuiting. Compared to the traditional method of using test cables for short-circuiting, the three-phase short-circuiting device of this utility model eliminates the need for cumbersome on-site short-circuiting operations and the use of a support frame for binding and fixing, thereby improving the convenience and efficiency of use. In addition, the three-phase short-circuiting device has a compact and reasonable structure, requiring only a single short-circuiting plate to achieve short-circuiting, greatly reducing the space required, making it particularly suitable for achieving three-phase short-circuiting of power equipment sockets in limited spaces.

[0007] Specifically, the socket is equipped with a sleeve, and each connector has a cavity to allow the sleeve to pass through.

[0008] The socket is also equipped with a socket, and the connector is connected to the socket by plugging into the socket. The sleeve is located inside the cavity.

[0009] One end of the pin assembly is disposed inside the cavity, and the other end is electrically connected to the shorting plate.

[0010] The socket is also equipped with a conductive rod that is electrically connected to electrical equipment. The conductive rod is installed inside the sleeve. When the connector is connected to the socket, the pin assembly is inserted into the conductive rod to achieve electrical connection between the pin assembly and the socket.

[0011] The conductive rod has a slot for inserting a pin assembly, and a watch strap contact is provided on the side wall of the slot. The watch strap contact of this invention improves the electrical connection between the conductive rod and the pin assembly.

[0012] The pin assembly includes a pin, a connecting block, a fastener, and a hexagonal piece to prevent the pin from rotating when it is secured. The pin passes through the hexagonal piece and the connecting block. After the pin passes through the shorting plate, the connecting block fits against the shorting plate. The fastener connects to the pin extending out of the shorting plate, thereby locking the pin to the shorting plate. This design ensures a secure connection between the pin assembly and the shorting plate, guaranteeing the reliability of the electrical connection.

[0013] The top of the pin assembly is provided with a guide cone. The guide cone of this invention facilitates the insertion of the pin assembly.

[0014] The plug also includes screws; the connector has a screw hole, and the connector is connected to the jumper plate by the screw and the screw hole.

[0015] The outer side of the connector is provided with a groove for engaging with the socket clip.

[0016] This utility model connector serves as a connection between the three-phase shorting device and the power equipment socket. It not only needs to be securely connected to the shorting plate but also needs to be quickly plugged into the socket. The connector of this utility model is secured to the socket by a groove, thereby enabling the rapid installation of the three-phase shorting device.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] 1. This utility model three-phase short-circuit device is easy to operate and can quickly realize the three-phase short circuit of the socket of power equipment, thereby improving the convenience and efficiency of use.

[0019] 2. The three-phase short-circuit device of this utility model has a compact and reasonable structure, which can greatly reduce the space required and is suitable for realizing three-phase short-circuiting of sockets in limited spaces. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the three-phase short-circuit device of this utility model. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the three-phase short-circuit device of this utility model. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the connector in the three-phase short-circuit device of this utility model;

[0023] Figure 4 This is a schematic diagram of an electrical equipment socket;

[0024] Among them, 1 is a shorting board, 2 is an electrical device, 3 is a socket, 4 is a plug, 5 is a connector, 5.1 is a cavity, 5.2 is a screw hole, 5.3 is a groove, 6 is a pin assembly, 7 is a sleeve, 8 is a socket, 9 is a conductive rod, 10 is a watch strap finger, 11 is a pin, 12 is a connecting block, 13 is a hexagonal piece, 14 is a fastener, 15 is a guide cone, 16 is a screw, 17 is a clip, and 18 is a spring assembly. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Example

[0026] like Figures 1 to 4As shown, the three-phase short-circuiting device of this utility model includes a short-circuiting plate 1 and three plugs 4 for electrical connection to a three-phase socket 3 of electrical equipment 2, respectively. Each plug 4 includes a connector 5 for fixed connection to the socket 3 and a pin assembly 6 for electrical connection to the socket 3. The connector 5 of each plug 4 is connected to the short-circuiting plate 1. The pin assembly 6 of each plug 4 is disposed inside the connector 5 and is electrically connected to the short-circuiting plate 1. When the connectors 5 of the three plugs 4 are connected to the three-phase socket 3, one end of the pin assembly 6 of each plug 4 is electrically connected to the socket 3, and the other end is electrically connected through the short-circuiting plate 1, thereby achieving a short circuit in the three-phase socket 3.

[0027] Specifically, the socket 3 is provided with a sleeve 7 and a socket 8, and each connector 5 has a cavity 5.1 for avoiding the sleeve 7. The connector 5 is connected to the socket 3 by plugging into the socket 8, and the sleeve 7 is located inside the cavity 5.1.

[0028] In addition, the socket 3 is also equipped with a conductive rod 9 that is electrically connected to the electrical equipment 2. The conductive rod 9 is disposed inside the sleeve 7, and one end of the pin assembly 6 is disposed inside the cavity 5.1, while the other end is electrically connected to the shorting plate 1. When the connector 5 is connected to the socket 3, the pin assembly 6 is inserted into the conductive rod 9, thereby achieving an electrical connection between the pin assembly 6 and the socket 3. To ensure a better electrical connection between the conductive rod 9 and the pin assembly 6, the conductive rod 9 of this invention has a slot for the pin assembly 6 to be inserted, and the side wall of the slot is provided with a watch strap contact finger 10.

[0029] The pin assembly 6 of this utility model includes a pin 11, a connecting block 12, a fastener 14, and a hexagonal piece 13 for preventing the pin 11 from rotating when fixing it. The pin 11 passes through the hexagonal piece 13 and the connecting block 12. After the pin 11 passes through the shorting plate 1, the connecting block 12 fits against the shorting plate 1. The fastener 14 is connected to the pin 11 extending out of the shorting plate 1, thereby locking the pin 11 to the shorting plate 1. This design allows the pin assembly 6 to be stably connected to the shorting plate 1, ensuring the reliability of the electrical connection.

[0030] In addition, a guide cone 15 is provided on the top of the pin assembly 6 to facilitate the insertion of the pin assembly 6.

[0031] The plug 4 of this utility model also includes a screw 16, and the connector 5 has a screw hole 5.2. The connector 5 is connected to the shorting plate 1 by the screw 16 and the screw hole 5.2. In order to improve the convenience of use, the outer side of the connector 5 is provided with a groove 5.3 for engaging with the locking piece 17 of the socket 3. Under the action of the spring assembly 18, the locking piece 17 can facilitate the insertion and removal of the plug 4.

[0032] The connector 5 of this three-phase short-circuiting device connects to the socket 3, allowing the pin assembly 6 to be electrically connected to the three-phase socket 3 of the power equipment 2. The pin assembly 6 is short-circuited via the shorting plate 1, thus quickly achieving a three-phase short circuit in the socket 3 of the power equipment 2. Compared to the traditional method of using test cables for short-circuiting, this three-phase short-circuiting device eliminates the need for cumbersome on-site short-circuiting operations and the use of a support frame for binding and fixing, thereby improving convenience and efficiency. Furthermore, this three-phase short-circuiting device has a compact and reasonable structure, requiring only a single shorting plate 1 for short-circuiting, significantly reducing space requirements and making it particularly suitable for achieving three-phase short circuits in power equipment sockets within limited spaces.

[0033] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A three-phase shorting device, characterized by: It includes a shorting plate and three plugs for electrical connection to a three-phase socket of electrical equipment, respectively; each plug includes a connector for fixed connection to the socket and a pin assembly for electrical connection to the socket; the connector of each plug is connected to the shorting plate; the pin assembly of each plug is disposed inside the connector and is electrically connected to the shorting plate; when the connectors of the three plugs are connected to the three-phase socket, one end of the pin assembly of each plug is electrically connected to the socket, and the other end is electrically connected through the shorting plate, thereby achieving shorting of the three-phase socket.

2. The three-phase shorting device of claim 1, wherein: The socket is equipped with a sleeve, and each connector has a cavity to allow the sleeve to pass through.

3. The three-phase short-circuiting device according to claim 2, characterized in that: The socket is also equipped with a socket, and the connector is connected to the socket by plugging into the socket. The sleeve is located inside the cavity.

4. The three-phase shorting device of claim 2, wherein: One end of the pin assembly is disposed inside the cavity, and the other end is electrically connected to the shorting plate.

5. The three-phase shorting device of claim 4, wherein: The socket is also equipped with a conductive rod that is electrically connected to electrical equipment. The conductive rod is installed inside the sleeve. When the connector is connected to the socket, the pin assembly is inserted into the conductive rod to achieve electrical connection between the pin assembly and the socket.

6. The three-phase shorting device of claim 5, wherein: The conductive rod has a slot for inserting a pin assembly, and the side wall of the slot is provided with a watch strap contact finger.

7. The three-phase shorting device of claim 1, wherein: The pin assembly includes a pin, a connecting block, a fastener, and a hexagonal piece for preventing the pin from rotating when it is fixed; the pin passes through the hexagonal piece and the connecting block; after the pin passes through the shorting plate, the connecting block fits against the shorting plate; the fastener connects with the pin extending out of the shorting plate to lock the pin to the shorting plate.

8. The three-phase shorting device of claim 1, wherein: The top of the latch assembly is provided with a guide cone.

9. The three-phase shorting device of claim 1, wherein: The plug also includes screws; the connector has a screw hole, and the connector is connected to the jumper plate by the screw and the screw hole.

10. The three-phase shorting device of claim 1, wherein: The outer side of the connector is provided with a groove for engaging with the socket clip.

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