CN205657372U - Solid insulation voltage transformer cabinet - Google Patents

Abstract

The utility model provides a solid insulation voltage transformer cabinet which characterized in that: the intelligent cabinet temperature adjusting device comprises a cabinet body, internal solid insulation switch and the voltage transformer of being provided with of cabinet, be provided with european style cable joint on the solid insulation switch, the last elbow cable bayonet joint that is provided with of voltage transformer, european style cable joint and elbow cable bayonet joint pass through high tension cable and connect. Solid insulation switch and voltage transformer set up in the internal portion of same cabinet, have enlarged the cable junction space, make voltage transformer and the mountable of solid insulation switch in same cubical switchboard, have reduced the volume that the cabinet was personally experienced sth. Part of the body, have advantages such as structural arrangement is simple reasonable and small, and easy realization is miniaturized, and is easy to assemble. The utility model relates to a solid insulation voltage transformer cabinet has insulating effectual, simple structure and advantage such as small.

Description

A solid insulation voltage transformer cabinet

technical field

The utility model relates to the field of voltage transformers, in particular to a solid insulation voltage transformer cabinet.

Background technique

Potential transformers are mainly used to supply power to measuring instruments and relay protection devices, to measure line voltage, power and electric energy, or to protect valuable equipment, motors and transformers in the line when the line fails, and to ensure operation The role of personnel and instrument safety. Existing voltage transformer cabinets generally use air insulation or air plus insulating partitions for insulation. The insulation effect of the separator is unstable and unreliable, and leakage accidents are prone to occur; on the other hand, neither the air insulation nor the insulating separator can achieve full insulation, and the weather resistance is poor. SF6 gas insulation can also be used. Although SF6 gas insulation can achieve full insulation, the previous voltage transformers are usually arranged in formal installations. Using SF6 gas insulation often requires an additional cabinet, which is difficult to achieve miniaturization, and there are still environmental issues. Application restricted. Therefore, it is necessary to make further improvements aiming at the deficiencies of the existing insulating structures.

Contents of the invention

In order to overcome the shortcomings of the above-mentioned prior art, the utility model provides a solid insulation voltage transformer cabinet with good insulation effect, simple structure and small volume.

The technical scheme that the utility model solves its technical problem adopts is:

A solid insulated voltage transformer cabinet, including a cabinet body, a solid insulated switch and a voltage transformer are arranged in the cabinet, a European-style cable joint is arranged on the solid insulated switch, and an elbow cable is arranged on the voltage transformer The plug connector, the European cable connector and the elbow cable connector are connected by a high voltage cable.

Further, the solid insulated switch is provided with a bus connector and a bus connector installed on the bus connector, and the bus connector is electrically connected to the bus connector of an adjacent switch cabinet through the bus connector.

Further, the voltage transformer is casted with epoxy resin, and the high-voltage primary live side of the voltage transformer is provided with an American-style cable bushing, and the elbow-shaped cable plug is fixedly sleeved on the American-style cable bushing.

Further, a high-voltage exposed charged body and a high-voltage fuse are arranged in the American-style cable sleeve, and the high-voltage exposed charged body is connected to a high-voltage cable through a high-voltage fuse.

Further, the high voltage fuse is connected to the elbow cable plug joint through threads.

Further, the cabinet body is provided with an observation window through which the position status of the solid insulation switch can be observed.

Further, an LED light is provided on the observation window.

Further, an instrument box is provided at the front of the cabinet, and measuring instruments and/or protection devices are installed in the instrument box.

Further, the solid insulation switch is insulated with epoxy resin.

The beneficial effects of the utility model include: the utility model is a solid insulation voltage transformer cabinet, the voltage transformer adopts epoxy resin casting molding to realize full insulation, the solid insulation switch adopts epoxy resin solid insulation, the voltage transformer and the solid insulation switch They are electrically connected through shielded touchable cable plugs and single-core cables. The top of the solid insulated switch is connected to the system busbar through a solid insulated busbar connector. The whole cabinet has no exposed charged body, which has better insulation performance and harsh environment resistance. . At the same time, the voltage transformer adopts hoisting method, which expands the cable connection space, enables the voltage transformer and solid insulated switch to be installed in the same switch cabinet, reduces the volume of the cabinet, and has the advantages of simple and reasonable structure and small size.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described, wherein:

Fig. 1 is the structural representation of the utility model cabinet.

detailed description

Referring to Fig. 1, Fig. 1 is a schematic structural view of a cabinet body 1 of the present invention. The utility model is a solid insulation voltage transformer cabinet, which includes a cabinet body 1, a solid insulation switch 2 and a voltage transformer 3 are arranged inside the cabinet body 1, and a European-style cable joint 4 is arranged on the solid insulation switch 2, so that The voltage transformer 3 is provided with an elbow-shaped cable plug joint 5, the European-style cable joint 4 and the elbow-shaped cable plug joint 5 are connected by a high-voltage cable 6, and the solid insulated switch 2 is provided with a busbar joint 7 and installed on the busbar The busbar connector 8 on the joint 7, the busbar connector 7 is electrically connected with the busbar connector 7 of the adjacent switch cabinet through the busbar connector 8; further, the voltage transformer 3 is molded by epoxy resin, and the solid insulation Switch 2 is insulated with solid epoxy resin, and the insulation effect is better. The voltage transformer 3 adopts the hoisting method, which expands the space for cable connection, enables the voltage transformer 3 and the solid insulated switch 2 to be installed in the same switch cabinet, reduces the volume of the cabinet 1, and has the advantages of simple and reasonable structural layout and small volume. , easy to realize miniaturization and convenient installation; in addition, the voltage transformer 3 is casted with epoxy resin to achieve full insulation, has good weather resistance, and has a longer service life.

Further, the high-voltage primary charged side of the voltage transformer 3 is provided with an American-style cable bushing, and the elbow-shaped cable plug joint 5 is fixedly sleeved on the American-style cable bushing; the American-style cable bushing is provided with a high-voltage exposed charged body and A high-voltage fuse, the high-voltage exposed charged body is connected to the high-voltage cable 6 through the high-voltage fuse; the high-voltage fuse is connected to the elbow cable plug joint 5 through threads. The voltage transformer 3 and the solid insulated switch 2 are electrically connected through a shielded touchable cable plug and a single-core cable. The top of the solid insulated switch 2 is connected to the system bus through a solid insulated bus connector 8. The entire cabinet 1 has no exposed charged body , have better insulation properties and resistance to harsh environments.

As a preferred embodiment of the present invention, the cabinet body 1 is provided with an observation window for observing the position status of the solid insulated switch 2, and an LED light is provided on the observation window. Through the observation window with LED lights, the state of the solid insulated switch 2 can be known without directly touching the operation cabinet 1, which is convenient for technicians to operate and improves the safety of operation.

Further, as a preferred embodiment of the present utility model, an instrument box is provided at the front of the cabinet body 1, and measuring instruments and/or protection devices are installed in the instrument box, so there is no need to set up a low-voltage box on the top of the cabinet, which further reduces the size of the cabinet. The volume of the body 1 is easy to realize miniaturization and has the advantages of convenient installation.

The above is only a preferred embodiment of the utility model, but the utility model is not limited to the above-mentioned embodiment, as long as it achieves the technical effect of the utility model by any same or similar means, it should belong to the protection of the utility model scope.

Claims (9)

1. A solid insulation voltage transformer cabinet, characterized in that: it includes a cabinet body (1), the cabinet body (1) is provided with a solid insulation switch (2) and a voltage transformer (3), the solid insulation The switch (2) is provided with a European-style cable connector (4), the voltage transformer (3) is provided with an elbow-shaped cable plug connector (5), and the European-style cable connector (4) and the elbow-shaped cable connector (5) are ) are connected via a high voltage cable (6). 2. A solid insulated voltage transformer cabinet according to claim 1, characterized in that: the solid insulated switch (2) is provided with a bus joint (7) and a bus connection installed on the bus joint (7) The bus connector (7) is electrically connected to the bus connector (7) of the adjacent switch cabinet through the bus connector (8). 3. A solid insulated voltage transformer cabinet according to claim 1, characterized in that: the voltage transformer (3) is molded by epoxy resin casting, and the high-voltage primary charged side of the voltage transformer (3) An American-style cable sleeve is provided, and the elbow-shaped cable plug joint (5) is fixedly sleeved on the American-style cable sleeve. 4. A solid insulated voltage transformer cabinet according to claim 3, characterized in that: a high-voltage exposed charged body and a high-voltage fuse are arranged in the American-style cable sleeve, and the high-voltage exposed charged body is connected to the high-voltage fuse by the high-voltage fuse. The high voltage cable (6) is connected. 5. A solid insulated voltage transformer cabinet according to claim 4, characterized in that: the high voltage fuse is connected to the elbow cable plug joint (5) through threads. 6. A solid insulated voltage transformer cabinet according to claim 1, characterized in that: the cabinet body (1) is provided with an observation window for observing the position status of the solid insulated switch (2). 7. A solid insulated voltage transformer cabinet according to claim 6, characterized in that: said observation window is provided with an LED light. 8. A solid insulated voltage transformer cabinet according to claim 1, characterized in that: an instrument box is provided at the front of the cabinet body (1), and measuring instruments and/or protection devices are installed in the instrument box. 9. A solid-insulated voltage transformer cabinet according to claim 1, characterized in that: the solid-insulated switch (2) is insulated by solid epoxy resin.