CN201937274U - Alternative current low voltage drawer type electric reactive compensation cabinet - Google Patents

Abstract

The utility model relates to the technical field of electric power application, in particular to an AC low-voltage drawer type electric reactive power compensation cabinet. The AC low-voltage drawer-type power reactive power compensation cabinet includes a cabinet body. The space in the cabinet is divided into a busbar room, a cabinet front room and a cabinet back room by a partition. The busbar room is arranged at the upper end of the cabinet body, and the cabinet front room and The back room of the cabinet is arranged side by side at the lower end of the cabinet body; the front room of the cabinet is composed of the main circuit breaker room, the instrument room, the capacitor room and the secondary cable terminal wiring room, wherein there are several capacitor rooms, and the capacitor room is equipped with There are drawer-like sub-boxes that can be withdrawn. The utility model can integrate a plurality of functional unit devices into a drawer-shaped plug-in box. When repairing a damaged electrical component, only the plug-in box needs to be pulled out to replace it safely and conveniently, without cutting off the main switch and without affecting the The user's electricity consumption and power supply quality are high, and the operation is convenient and simple; the drawer-shaped plug-in box can be produced and processed by modularization, and the processing efficiency is high.

Description

AC low voltage drawer type power reactive power compensation cabinet

technical field

The utility model relates to the technical field of electric power application, in particular to an AC low-voltage drawer type electric reactive power compensation cabinet.

Background technique

In the AC low-voltage power reactive power compensation cabinet used in the existing power system, various electrical components are installed in the compensation cabinet with a fixed installation structure. When the electrical components are damaged and need to be repaired, the main switch must be cut off, which will affect the user The quality of electricity and power supply; at the same time, due to the limitation of the space in the cabinet, it is time-consuming and laborious to replace electrical components, and the maintenance work is cumbersome.

Utility model content

The purpose of the utility model is to provide an AC low-voltage drawer type electric reactive power compensation cabinet, which has strong safety and reliability, high interchangeability of functional modules and easy installation and maintenance.

In order to achieve the above purpose, the utility model adopts the following technical solutions: an AC low-voltage drawer type electric reactive power compensation cabinet, including a cabinet body, and the space in the cabinet is divided into a busbar room, a cabinet front room and a cabinet The rear room and the busbar room are arranged at the upper end of the cabinet body, and the front room and the back room of the cabinet are arranged side by side at the lower end of the cabinet body; the front room of the cabinet is connected by the main circuit breaker room, the instrument room, the capacitor room and the secondary cable terminal There are several chambers, among which there are several capacitor chambers, and there are drawer-shaped plug-in boxes in the capacitor chamber.

Compared with the prior art, the utility model has the advantages of:

(1) The utility model can integrate a plurality of functional unit devices into a drawer-shaped plug-in box. When a certain electrical component is damaged and needs maintenance, only the plug-in box needs to be pulled out to replace the damaged electrical appliance safely and conveniently. Components, after the replacement is completed, insert the sub-box into the reactive power compensation cabinet, which is convenient and simple to operate;

(2) The drawer-shaped box can be produced and processed in a modular manner, with fast processing speed and high processing efficiency;

(3) When replacing the electrical components in the drawer-shaped plug-in box, there is no need to cut off the main switch, which will not affect the quality of electricity consumption and power supply for users.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a left side view of Fig. 1 .

Detailed ways

As shown in Figures 1 and 2, an AC low-voltage drawer type electric reactive power compensation cabinet includes a cabinet body 10, and the space in the cabinet body 10 is divided into a busbar room 11, a cabinet front room and a cabinet back room by a partition 11A, the busbar room 11 is arranged at the upper end of the cabinet body 10, and the cabinet front room and the cabinet back room 11A are arranged side by side at the lower end of the cabinet body 10; and a secondary cable terminal junction chamber 15, wherein several capacitor chambers 14 are provided, and the capacitor chamber 14 is provided with a withdrawable drawer-shaped plug-in box.

Further, copper bus bars 30 arranged vertically are arranged in the back room 11A of the cabinet, and one end of the drawer-shaped plug-in box in the capacitor room 14 facing the back room 11A of the cabinet is provided with copper bus bars 30 corresponding to the copper bus bars 30. To connect the matched plug-in, the drawer-shaped sub-box is also provided with a switching switch, a thermal relay, a reactor and a capacitor connected in series with the plug-in in sequence.

Since the switching switch, thermal relay, reactor and capacitor are all integrated in the drawer-shaped sub-box, when a certain electrical component is damaged and needs maintenance, you only need to pull out the sub-box to replace the damaged electrical component safely and conveniently After the replacement is completed, insert the subrack into the reactive power compensation cabinet, which is convenient and simple to operate.

In actual work, the drawer-shaped sub-box is inserted into the interior of the capacitor chamber 14 in a push-insert manner. When the sub-box is pushed into place, the plug-in on the drawer-shaped sub-box connects with the copper busbar 30, realizing plug-and-play Therefore, it can be seen that the utility model has high reliability, good safety performance and simple product structure.

Further, the drawer-shaped box can be inserted from the front side of the cabinet body 10 , and can also be inserted from the rear side of the cabinet body 10 .

The front side and the rear side of the cabinet body 10 are defined as the front side when the operator pushes and inserts the plug-in box into place, and the opposite side as the rear side.

As shown in FIG. 1 , the number of capacitor chambers 14 is 1-8. In actual operation, the number of capacitor chambers 14 can be reserved according to actual needs.

As shown in Figures 1 and 2, upper vents 111 are provided on the front and rear cabinet walls of the busbar room 11.

The arrangement of the upper vent 111 can facilitate the ventilation and exhaust inside the busbar chamber 11 .

The secondary cable terminal junction room 15 is arranged at the bottom of the front room of the cabinet, and the front cabinet wall of the secondary cable terminal junction room 15 is provided with a lower vent 151 .

As shown in FIG. 2 , a fan 20 for ventilation is provided on the rear cabinet wall of the cabinet rear chamber 11A.

The blower fan 20 cooperates with the lower air vent 151 to maintain the air circulation in the lower area of the cabinet body 10, so as to accelerate the heat dissipation of the electrical components.

Claims (6)

1. AC low-tension drawer type electric reactive compensating cabinet, comprise cabinet (10), it is characterized in that: the space in the described cabinet (10) is separated into chamber (11A) behind bus-bar room (11), cabinet cup and the cabinet by dividing plate, bus-bar room (11) is arranged on the upper end of cabinet (10), and chamber behind cabinet cup and the cabinet (11A) is arranged side by side the lower end in cabinet (10); Described cabinet cup is made of main circuit breaker chamber (12), control room (13), electric capacity chamber (14) and secondary cable terminal connections chamber (15), and wherein electric capacity chamber (14) are provided with several, and are provided with withdrawable drawer-like subrack in electric capacity chamber (14).

2. AC low-tension drawer type electric reactive compensating cabinet according to claim 1, it is characterized in that: the copper bus-bar (30) that is provided with vertical arrangement in chamber behind the described cabinet (11A), one end of the chamber behind cabinet (11A) of the drawer-like subrack in the electric capacity chamber (14) is provided with the plug-in unit that is connected and cooperates with described copper bus-bar (30), also is provided with fling-cut switch, thermal relay, reactor and the capacitor of connecting successively with plug-in unit in the described drawer-like subrack.

3. AC low-tension drawer type electric reactive compensating cabinet according to claim 1 and 2 is characterized in that: be equipped with ventilating opening (111) on the forward and backward cabinet wall of described bus-bar room (11).

4. AC low-tension drawer type electric reactive compensating cabinet according to claim 1 and 2, it is characterized in that: described secondary cable terminal connections chamber (15) is arranged on the bottom of cabinet cup, and the preceding cabinet wall of secondary cable terminal connections chamber (15) is provided with down ventilating opening (151).

5. AC low-tension drawer type electric reactive compensating cabinet according to claim 1 and 2, it is characterized in that: described electric capacity chamber (14) is set to 1～8.

6. AC low-tension drawer type electric reactive compensating cabinet according to claim 3 is characterized in that: the back cabinet wall of chamber behind the described cabinet (11A) is provided with the blower fan (20) that is used to ventilate.

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