Switch remote operation tool in ring main unit

Abstract

The invention discloses a switch remote operation tool in a ring main unit. The switch remote operation tool comprises an installation table (1) and an operating lever (2), wherein a supporting frame (3) is arranged at the bottom part of the installation table (1), a rotary supporting base (4) is arranged on the installation table (1), one end of the operating lever (2) is placed in the rotary supporting base (4) and rotates inside the rotary supporting base (4), the end of the operating lever (2) is provided with an operating mechanism, the other end of the operating lever (2) is provided with a working head (5) which passes through an operating hole (6) of a load switch (7) of the ring main unit and is connected with the load switch (7) of the ring main unit, a pin shaft (8) arranged on the side surface of the working head (5) is inserted into a bayonet (9) of the load switch (7), and the working head (5) rotates clockwise or anticlockwise to drive the load switch (7) to achieve switching on / off state.

Description

technical field [0001] The invention relates to a remote operation tool for a switch in a ring network cabinet. Background technique [0002] With the development of the distribution network, the transformation of the main line, and the increase of users, but the construction of some switching stations in the power industry has not reached a large scale, the operation management is not standardized, there are misunderstandings and omissions in the operation management, the operators are unstable, and they are not familiar with the structure of the switching equipment (especially the structure of the five-proof device) and switching operation procedures, do not understand the technical principles of switching operation and safety precautions, resulting in frequent accidents of switching misoperation. The second is that the equipment selection work in the engineering design stage was wrong, the selection was not in accordance with the specific requirements of the switching dev...

AI Technical Summary

Problems solved by technology

[0002] With the development of the distribution network, the transformation of the main line, and the increase of users, but the construction of some switching stations in the power industry has not reached a large scale, the operation management is not standardized, there are misunderstandings and omissions in the operation management, the operators are unstable, and they are not familiar with the structure of the switching equipment (especially the structure of the five-proof device) and switching operation procedures, do not understand the technical principles of switching operations and safety precautions, resulting in frequent accidents of switching misoperation

The second is that the selection of equipment in the engineering design stage was wrong, and the selection was not made according to the specific requirements of the switching device. The five prevention functions were incomplete or the structure of the prevention of errors was unreasonable, which led to misoperation accidents.

The third is that the anti-misoperation insulation baffle in the ring main unit is not drawn out, and the busbar switch is blindly closed, causing equipment damage and misoperation accidents. More importantly, the current maintenance-free closed incoming line cabinet is equipped with a line grounding switch.

Because the switch is closed, it is impossible to test the power of the line, and it is easy to cause misoperation accidents of the live grounding switch. At present, the operation is carried out at close range with insulating gloves (about 50 cm from the switch body).

If the switchgear itself is faulty or other reasons cause the switchgear to burn or explode, the safety of the operator will not be guaranteed.

Images