High-safety interlocking mechanism for ring main unit

Abstract

The invention relates to a high-safety interlocking mechanism for a ring main unit, the high-safety interlocking mechanism for the ring main unit comprises a box body, a cover plate and a connecting mechanism, the connecting mechanism comprises a connecting assembly and a positioning assembly, the high-safety interlocking mechanism for the ring main unit realizes positioning between the middle part of the cover plate and the box body through the connecting assembly, and meanwhile, the middle part of the cover plate and the box body are positioned through the restoring force of a first spring. The limiting plate always abuts against the circular ring, the positioning effect is improved, the cover plate better abuts against the box body, the two ends of the cover plate and the box body are positioned through the positioning assembly, the cover plate is connected with the box body in an aligned mode, the connecting effect is improved, the cover plate is positioned through the positioning pin, and the positioning precision is improved. The cover plate is arranged in the box body, so that the cover plate is better connected with the box body through the connecting assembly, the positioning pin can be limited through the electromagnet, and the cover plate can be opened only when power is off, so that people are reminded and protected.

Description

technical field [0001] The invention particularly relates to a high-safety interlocking mechanism for a ring network cabinet. Background technique [0002] The ring network cabinet is a group of electrical equipment that is installed in a metal or non-metal insulated cabinet or made into an assembled interval ring network power supply unit. Its core components are load switches and fuses. The load switch is used to control the high-voltage circuit. , The fuse is responsible for protecting the high-voltage circuit, and the ring main unit is widely used in distribution stations and box-type substations of load centers such as urban residential quarters, high-rise buildings and factories and enterprises. [0003] Because there are high-voltage electrical appliances inside the ring network cabinet, it is very dangerous to open the ring network cabinet when it is powered on. However, the existing ring network cabinet circuit master gate and locking mechanism are two independent m...

AI Technical Summary

Problems solved by technology

[0003] Because there are high-voltage electrical appliances inside the ring network cabinet, it is very dangerous to open the ring network cabinet when it is powered on. However, the existing ring network cabinet circuit master gate and locking mechanism are two independent mechanisms. When the gate is opened, there will be no prompt when the locking mechanism is opened, causing the staff to easily ignore whether the circuit is powered on, which may easily lead to accidents

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