CN203085768U - Detachable end screen grounding device - Google Patents

Abstract

The utility model discloses a just, tear formula end screen earthing device open, end screen screw rod including connecting capacitive type equipment is equipped with the nut, the one end of screw rod is the cuboid, the screw rod sets up the casing outward. The grounding end of the screw rod of the end screen grounding device is arranged to be a rectangular body, so that the screw of the grounding end of the end screen grounding device can be conveniently dismounted and mounted, the loosening phenomenon of the screw rod and the screw cap when the end screen grounding device is dismounted cannot occur, and the potential safety hazard is eliminated; the shell is arranged outside the screw rod, so that erosion of rain, snow and moisture is prevented, and corrosion and locking between the screw rod and the screw cap are prevented; therefore, the utility model discloses simple structure economical and practical realizes easily, need not increase extra cost, can guarantee electrical equipment normal operating, has reduced power company's loss.

Description

Detachable end screen grounding device

technical field

The utility model belongs to the technical field of electric power construction equipment, in particular to a detachable end screen grounding device.

Background technique

The end screen of capacitive electrical equipment in the power system (transformer high voltage bushing, capacitive current transformer, capacitive wall bushing, capacitive voltage transformer, coupling capacitor, etc.) must be well grounded, otherwise high voltage will be generated. For this reason, electrical equipment manufacturers have adopted different forms of end-screen grounding devices to ensure reliable grounding and prevent high voltage generation. At present, manufacturers of capacitive electrical equipment all use fully threaded screws with nuts to connect the end screen and grounding conductor of capacitive equipment to achieve reliable grounding.

Capacitive electrical equipment is mostly located outdoors, and is often eroded by rain, snow, and humidity, causing rust and locking between the screw and the nut. When the test needs to dismantle the grounding conductor of the last screen grounding device, it often occurs that the nut and the screw are locked together, and the phenomenon of "connecting the shaft" makes it difficult to disassemble the grounding. Even if it takes a lot of effort to open the grounding of the last screen, it is difficult to ensure that there will be no "coaxial rotation" between the screw and the screw during recovery, and it is difficult to achieve a reliable connection. For inexperienced novices, it is also possible to break the connecting lead of the last screen, which will bring hidden dangers to the safe operation of electrical equipment.

Utility model content

The utility model provides a detachable end screen grounding device which can prevent the erosion of rain, snow and humidity and is convenient to use.

A detachable end-screen grounding device, which includes an end-screen screw connected to capacitive equipment and a nut, and one end of the screw is rectangular.

A casing is arranged outside the screw.

The shell is made of rubber material.

In the utility model, the grounding end of the screw rod of the final screen grounding device is arranged in a rectangular shape, which can be easily disassembled and installed on the grounding end screw of the final screen grounding device, and there will be no loosening of the screw rod and nut when the final screen grounding device is reinstalled, eliminating The safety hazard is eliminated; the shell is arranged outside the screw rod to prevent rain, snow, and moisture erosion, which is beneficial to prevent rust and lock between the screw rod and the nut; The cost can ensure the normal operation of electrical equipment and reduce the loss of the power company.

Description of drawings

Below in conjunction with accompanying drawing, the utility model will be further described:

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

Detailed ways

As shown in Figure 1, a detachable end-screen grounding device includes an end-screen screw 3 connected to capacitive equipment and a nut 5, one end of the screw 3 is rectangular, and a housing is arranged outside the screw 3 2. The shell is made of rubber material.

In the utility model, the screw grounding end of the last screen grounding device is arranged in a rectangular shape, the last screen lead wire 1 is connected to the capacitive equipment, and the last screen grounding lead wire 4 is connected to the grounding rod, which can be easily disassembled and installed. The grounding end screw of the last screen grounding device , there will be no loosening of the screw and nut when reinstalling the last screen grounding device, eliminating potential safety hazards; the screw is equipped with a shell to prevent rain, snow, and moisture erosion, which is beneficial to prevent rust and lock between the screw and the nut Therefore, the utility model has a simple structure, is economical and practical, is easy to implement, does not need to increase additional costs, can ensure the normal operation of electrical equipment, and reduces the loss of the power company.

Claims (3)

1. A detachable end-screen grounding device, characterized in that: the end-screen screw rod connected to the capacitive equipment is equipped with a nut, and one end of the screw rod is rectangular. 2. The detachable end screen grounding device according to claim 1, characterized in that: a shell is arranged outside the screw rod. 3. The detachable end screen grounding device according to claim 2, wherein the housing is made of rubber material.

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