CN206283112U - A kind of high-tension switch cabinet - Google Patents

Abstract

The utility model discloses a high-voltage switchgear cabinet, which comprises a high-voltage switchgear cabinet body, and is characterized in that: a busbar room, a circuit breaker room, a cable room and a relay instrument room are arranged in the cabinet body, and a fan and an alarm LED are arranged on the top The lamp is equipped with a shock absorbing spring at the bottom. Compared with the prior art, the utility model solves the problem of insufficient safety protection, including heat dissipation, shock resistance, etc., which can play a good protective role, thereby ensuring the safety of personnel and equipment. Its detection device can promptly remind the maintenance personnel to repair the equipment, so as to ensure the normal operation of the equipment.

Description

A high voltage switch cabinet

technical field

The utility model belongs to the technical field of electrical equipment, in particular to a novel high-voltage switch cabinet.

Background technique

In various fields such as power industry, industrial and mining enterprises, and railway transportation, high-voltage switchgear is an indispensable control equipment. With the sharp increase of electricity load, the temperature of the switchgear and circuit breaker is high, and the heat in the circuit breaker room is not discharged in time, resulting in a continuous rise in temperature, causing overheating of the dynamic and static contacts, resulting in poor contact, resulting in contact burnout, and open circuit The short circuit of the device caused the bus power failure. The high-voltage switchgear will be transported many times from production to use, and there will be shocks during the transport process, which will damage important components in the cabinet. In actual operation, if there is no device in the high-voltage switchgear to detect whether the equipment is operating normally, timely maintenance cannot be carried out to ensure the safe operation of the power grid.

Utility model content

The utility model provides a new type of high-voltage switch cabinet aiming at the above disadvantages.

For realizing the purpose of the utility model, the technical scheme that the utility model adopts is:

A high-voltage switchgear, comprising a high-voltage switchgear cabinet body, the cabinet body is provided with a busbar room, a circuit breaker room, a cable room, a relay instrument room, and the top of the busbar room is equipped with a pressure relief device, a fan and an alarm LED light, The lower part of the busbar room is equipped with a static contact device, and an isolation protection box is provided outside. The static contact device is electrically connected with the main busbar and branch busbars. The busbar room is also equipped with an infrared sensor. The circuit breaker room is equipped with a circuit breaker installed on a detachable horizontal partition. The top of the circuit breaker room is equipped with a fan and a pressure relief device. The cable room is equipped with a cable and a lightning arrester, and a current transformer is installed on the cable. and a temperature controller, a grounding switch is installed on the lightning arrester, the lightning arrester and cables are installed on a support plate provided with a damping spring, and an instrument is arranged in the relay instrument room.

Preferably, a temperature controller is provided in the high-voltage switch cabinet, and the temperature controller is electrically connected to the fan on the top, and a dustproof plate is provided on the fan.

Preferably, a support plate is provided on the upper surface of the shock absorbing spring and the lower surface of the cabinet.

Preferably, the infrared sensor is electrically connected to the voice alarm and the alarm LED light on the top of the cabinet.

The beneficial effects of the utility model are: solving the problem of insufficient safety protection, including heat dissipation, shock resistance, etc., which can play a good protective role, thereby ensuring the safety of personnel and equipment. Its detection device can promptly remind the maintenance personnel to repair the equipment to ensure the normal operation of the equipment.

Description of drawings

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. The scope of protection of the utility model is not limited to the expression of the following content.

Fig. 1 is the schematic diagram of the utility model high voltage switchgear;

In the picture:

1. Bus room 2, circuit breaker room 3, high-voltage cable room 4, relay instrument room 5, high-voltage switchgear cabinet body 6, main bus bar 7, infrared sensor 8, high-voltage switch static contact device 9, temperature controller 10, Current transformer 11, cable 12, earthing switch

13. Branch busbar 14. Lightning arrester 15. Instrument 16. Pressure relief device 17. Dustproof plate

18. Fan 19. Circuit breaker 20. Detachable horizontal partition 21. Damping spring

22. Support plate 23. Isolation protection box 24. Voice alarm 25. Alarm LED light

detailed description

Below in conjunction with accompanying drawing, the utility model is further elaborated.

As shown in FIG. 1 , the utility model provides a high-voltage switchgear. The high-voltage switchgear body 5 is provided with a busbar room 1 , a circuit breaker room 2 , a high-voltage cable room 3 and a relay instrument room 4 . The top of the bus chamber 1 is provided with a pressure relief device 16, a fan 18 and an alarm LED light 25, and a static contact device 8 is provided at the lower part of the bus chamber 1, and an isolation protection box 23 is provided outside the static contact device 8. The static contact device 8 is electrically connected with the main bus 6 and the branch bus 13. The bus room 1 is also equipped with an infrared sensor 7. The circuit breaker room 2 is equipped with a detachable horizontal The circuit breaker 19 on the partition 20, the top of the circuit breaker chamber 2 is equipped with a fan 18 and a pressure relief device 16, the cable chamber 3 is provided with a cable 11 and a lightning arrester 14, and a current transformer 10 is installed on the cable 11 And the temperature controller 9, the grounding switch 12 is installed on the lightning arrester 14, and the lightning arrester 14 and the cable 11 are installed on the support plate provided with the damping spring. The shock-absorbing spring 21 at the bottom can act as a good buffer when the cabinet encounters external shocks and prevent damage to devices in the high-voltage switch cabinet. The instrument 15 is provided in the relay instrument room 4 .

A fan 18 is provided on the top plate of the high-voltage switch cabinet body 5, and a dust shield 17 that can prevent dust from entering the interior of the high-voltage switch cabinet body 5 is arranged above the fan 18. The high-voltage switch cabinet A thermostat 9 is provided inside, and the thermostat 9 is electrically connected to the fan 18. If the load of the circuit breaker 19 and the cable 11 is heavy and the heat generation is large, the thermostat 9 controls the fan 18 to turn on to perform forced discharge. Wind; when the calorific value is small, the thermostat 9 controls the fan 18 to turn off, the fan 18 does not work, and the natural exhaust is carried out, thus ensuring the safe operation of the high-voltage switchgear.

The high-voltage switch cabinet body 5 is provided with a high-voltage switch static contact device 8, and the outside of the high-voltage switch static contact device 8 is provided with an isolation protection box 23, and the isolation protection box 23 is detachably fixed to the high-voltage switch cabinet body by screws On the inner cavity wall of 5, the isolation protection box is made of insulating materials such as insulating plastics and insulating alloys. The high-voltage switch cabinet body 5 is detachably fixed with an infrared sensor 7 on the inner cavity wall close to the high-voltage switch static contact device 8, and an infrared sensor 7 is installed in the high-voltage switch cabinet body 5, which is electrically connected to the infrared sensor 7. Voice alarm 24 and the alarm LED light 25 on the top of its cabinet body 5 . When the static contact device 8 was abnormal, the infrared sensor 7 controlled the voice alarm 24 and immediately sent an alarm sound, and the alarm LED light 25 would also flash continuously to remind maintenance personnel to repair the equipment.

The pressure relief device 16 is composed of nylon bolts and pressure relief metal plates. When the switchgear is in operation, due to various reasons (such as short circuit, insulation aging, human error, etc.), a short circuit fault occurs in the primary circuit. Under the short-circuit current, when high-temperature and high-pressure gas is generated instantaneously, the pressure relief metal plate is automatically and quickly opened after melting the nylon bolts to effectively discharge the gas and release the pressure, so as to protect the safety of personnel and equipment in the passage.

The lightning arrester 14 is equipped with a grounding switch 12. When the working voltage is normal, the grounding switch is closed and the switchgear is insulated from the ground. When lightning invades or the voltage increases, the grounding switch is opened to introduce lightning current or overvoltage to the ground. Protect the switchgear. After lightning or overvoltage, the grounding switch is closed to return to the insulation state.

In summary, the utility model can be better realized.

Claims (4)

1. A high-voltage switchgear, comprising a high-voltage switchgear cabinet (5), is characterized in that a busbar chamber (1), a circuit breaker chamber (2), and a cable chamber (3) are provided in the cabinet (5) , Relay instrument room (4), the top of the busbar room (1) is provided with a pressure relief device (16), fan (18) and alarm LED lights (25), and the lower part of the busbar room (1) is equipped with a static The contact device (8) is provided with an isolation protection box (23) outside, and the static contact device (8) is electrically connected with the main busbar (6) and branch busbars (13). The busbar chamber (1 ) is also equipped with an infrared sensor (7), and the circuit breaker room (2) is equipped with a circuit breaker (19) installed on a detachable horizontal partition (20), and the circuit breaker room (2) A fan (18) and a pressure relief device (16) are installed on the top, and a cable (11) and a lightning arrester (14) are arranged in the cable room (3), and a current transformer (10) and a current transformer (10) are installed on the cable (11). The temperature controller (9), the grounding switch (12) is installed on the lightning arrester (14), the lightning arrester (14) and the cable (11) are installed on the support plate provided with the damping spring, and the relay instrument A meter (15) is arranged in the chamber (4). 2. A high-voltage switchgear according to claim 1, characterized in that a thermostat (9) is arranged inside the high-voltage switchgear, and the thermostat (9) is electrically connected to the top fan (18) , The fan (18) is provided with a dustproof plate (17). 3. A high-voltage switch cabinet according to claim 1, characterized in that, the upper surface of the damping spring (21) and the lower surface of the cabinet body (5) are provided with a support plate (22). 4. A kind of high-voltage switchgear according to claim 1, it is characterized in that, described infrared sensor (7) and voice alarm (24) and alarm LED light (25) on the top of cabinet body (5) carry out corresponding electrical connections.