T-shaped cable head grounding device and method of ring main unit

Abstract

The invention relates to the field of grounding equipment, in particular to a T-shaped cable head grounding device and method of a ring main unit. The T-shaped cable head grounding device is used forgrounding a T-shaped cable head, a copper nose is arranged in the T-shaped cable head, and a through hole is formed in the copper nose. The grounding device comprises an insulating rod, a conductive rod and a bending piece, the two ends of the conductive rod are respectively connected with the insulating rod and the bending piece, and a pull rod piece capable of moving front and back is installedin the current-conducting rod, moves forwards to drive the bending piece to contract so as to penetrate through the through hole of the copper nose, and moves backwards to drive the bending piece to expand towards the two sides so as to clamp and fix the copper nose between the conductive rod and the bending piece. A grounding wire is installed on the conductive rod, and a grounding end is arranged at the other end of the grounding wire. The T-shaped cable head grounding device is simple in structure, is convenient to operate, can prevent the dust prevented from entering the T-shaped cable head, and enables the working efficiency to be improved.

Description

technical field [0001] The invention relates to the field of grounding equipment, in particular to a grounding device and method for a T-shaped cable head of a ring network cabinet. Background technique [0002] The 10KV ring network cabinet has superior electrical performance and beautiful appearance, and is widely used in power distribution networks. However, in daily operation and maintenance, there will be some problems, such as the overvoltage of the system causing the voltage transformer of the ring main unit to explode, the operating environment in coastal areas is humid, the incoming and outgoing cables are short-circuited between phases or relative to the ground, etc. Forced to fail to stop running. When these failures cause the ring main unit to stop running, the testers will conduct power-off maintenance and electrical performance tests on the ring main unit. [0003] Before conducting the electrical performance test of the ring network cabinet, all the cable he...

AI Technical Summary

Problems solved by technology

This method is more troublesome. At the same time, when the T-shaped cable sheath is removed, it must be sealed with a dust-free bag to prevent dust pollution. The cable core after the sheath is removed should also be dust-proof. Dust sticks, otherwise, after the dusty cable head is powered on and running, the electric field distribution of the cable head will be uneven, which will eventually lead to insulation breakdown of the cable head

This practice increases the workload of staff

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