CN201167029Y - A plate type capacitor bank overvoltage damping device - Google Patents

Abstract

The utility model discloses an overvoltage damping device for a plate capacitor group, which comprises a non-inductive resistor and a vacuum gap connected in series. The upper and lower ends of the non-inductive resistor are respectively provided with a middle plate and a lower plate. The two insulators form a gantry with the upper plate above the two insulators, the vacuum gap is fixed in the gantry, the upper plate is provided with an upper terminal, and the lower plate is provided with a lower terminal. Compared with the prior art, the utility model has the following advantages: 1. It is suitable for being directly installed on the upper and lower terminals of the reactor or on the upper and lower star frames of the reactor; 2. The overall damping device is plate-shaped, which can save the damping device 3. The height of the damping device can be adjusted appropriately according to the height of the reactor, which is convenient for wiring; 4. The electrical connection and mechanical support are integrated, so that there is no wrong connection and material saving.

Description

A plate type capacitor bank overvoltage damping device

technical field

The utility model relates to a capacitor group overvoltage damping device, in particular to a plate type capacitor group overvoltage damping device.

Background technique

At present, some installed capacitor banks need to add damping devices, but there are not enough installation positions. A more reasonable arrangement is to install the damping devices on the two terminals of the air-core reactor or on the upper and lower star frames of the reactor. Of course, the damping device must keep a sufficient insulation distance from the reactor. In order to save the installation area, the newly designed capacitor bank may also install the damping device according to the above requirements. It is a reasonable installation method to hang the damping device on the upper and lower terminals of the air-core reactor or on the upper and lower star frames of the reactor. .

Contents of utility models.

The purpose of this utility model is to provide a plate type capacitor bank overvoltage damping device whose electrical connection point is consistent with the mechanical support point, so as to conveniently and correctly install the damping device on the series reactor or the filter reactor. The upper and lower terminals of the reactor or the upper and lower star frames of the reactor, saving the space occupied by the damping device.

The technical solution of the utility model is: a plate type capacitor bank overvoltage damping device, including a non-inductive resistor and a vacuum gap connected in series, characterized in that: the upper and lower ends of the non-inductive resistor are respectively provided with a middle plate and a The lower plate, the middle plate is equipped with two insulators and forms a gantry with the upper plate above the two insulators, the vacuum gap is fixed in the gantry, the upper plate is provided with an upper terminal, and the lower plate There is a lower terminal.

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

(1) It is suitable to be installed directly on the upper and lower terminals of the reactor or on the upper and lower star frames of the reactor.

(2) The overall damping device is plate-shaped, which can save the space occupied by the damping device.

(3) According to the height of the reactor, the height of the damping device can be adjusted appropriately to facilitate wiring.

(4) The electrical connection and mechanical support are integrated, so that there is no wrong connection and material saving.

Description of drawings

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

Detailed ways

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

A plate type capacitor bank overvoltage damping device as shown in Figure 1 includes a mesh non-inductive resistor 5 and a vacuum gap 1 connected in series with it, and the upper and lower ends of the non-inductive resistor 5 are respectively provided with a middle plate 4 and a The lower plate 7 and the middle plate 4 are equipped with two insulators 9 and form a gantry with the upper plate 3 above the two insulators 9, the vacuum gap 1 is fixed in the gantry, and the upper plate 3 is provided with The upper terminal 2 and the lower plate 7 are provided with a lower terminal 8 . The upper plate 3, the middle plate 4 and the lower plate 7 are aluminum plates.

As shown in FIG. 1 , an insulating support 6 is provided between the middle plate 4 and the lower plate 7 .

Claims (3)

1. A plate type capacitor bank overvoltage damping device, comprising a non-inductive resistor (5) and a vacuum gap (1) connected in series with it, characterized in that: the upper and lower ends of the non-inductive resistor (5) are respectively provided with The middle plate (4) and the lower plate (7), the middle plate (4) is equipped with two insulators (9) and forms a gantry with the upper plate (3) above the two insulators (9), and the vacuum gap (1) fixed in the portal frame, the upper plate (3) is provided with an upper terminal (2), and the lower plate (7) is provided with a lower terminal (8). 2. An overvoltage damping device for a plate capacitor bank according to claim 1, characterized in that: an insulating support (6) is provided between the middle plate (4) and the lower plate (7). 3. An overvoltage damping device for a plate capacitor bank according to claim 1, characterized in that: the non-inductive resistor (5) is mesh-shaped.

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