An indoor intelligent 10kv boundary circuit breaker switchgear with communication function

Abstract

The invention provides an indoor intelligent 10 kV boundary circuit-breaker switch cabinet having a communication function. The indoor intelligent 10 kV boundary circuit-breaker switch cabinet comprises a cabinet body; an intelligent monitoring unit is arranged at the upper end of the front side of the cabinet body; and a line inlet side bus connection unit and a line outlet side boundary circuit-breaker unit are arranged at the lower end of the front side of the cabinet body. The indoor intelligent 10 kV boundary circuit-breaker switch cabinet disclosed by the invention has a boundary short-circuiting function of rapidly breaking T-type connection of a 10 KV major network while a user line inlet side has a fault, so that the power failure area is reduced; the indoor intelligent 10 kV boundary circuit-breaker switch cabinet has a function of uploading data information of a main station through communication; therefore, the position of a fault point is convenient to rapidly position; the power failure time is shortened; power supply is rapidly recovered; furthermore, the indoor intelligent 10 kV boundary circuit-breaker switch cabinet has a complete and powerful acquisition function of a user network; current measurement is realized through a protective CT (Captive Test); various data can be displayed accurately; historical operation parameters can be memorized and inquired; simultaneously, an on-pole (outdoor) boundary circuit-breaker can be completely replaced; by means of floor type installation, the indoor intelligent 10 kV boundary circuit-breaker switch cabinet is convenient to overhaul; the indoor intelligent 10 kV boundary circuit-breaker switch cabinet has a ventilation heating system outside a gas tank; three master devices including an integrated circuit-breaker, an isolation switch and an earthing switch are integrated in the gas tank; and the indoor intelligent 10 kV boundary circuit-breaker switch cabinet is small in volume, material-saving and low in manufacturing difficulty and cost.

Description

technical field [0001] The invention relates to the technical field of a boundary circuit breaker switchgear, in particular to an indoor intelligent 10kV boundary circuit breaker switchgear with a communication function. Background technique [0002] Traditional boundary circuit breakers (commonly known as watchdogs) are generally column-mounted. The power supply installer needs to climb up the high-voltage pole, first install the bracket, hoist the switch on the pole, the external high-voltage transformer, the boundary controller, and connect the wires. The process is cumbersome, and it takes a long time to work at heights, and it is very difficult to climb up and down for later maintenance. [0003] The boundary circuit breaker is a multi-functional intelligent device product that integrates a disconnecting switch, a vacuum circuit breaker, and a boundary circuit breaker controller. Widely used in 10kV urban and rural distribution network overhead ring network lines, use...

AI Technical Summary

Problems solved by technology

Faults sometimes occur at the user's incoming line end or inside the user's incoming line. If the relay protection action time limit of the user's power distribution equipment does not match the relay protection action time limit of the power supply company's outgoing line switch, it will cause the outgoing line switch of the superior substation to trip over the level

Often a user's failure will lead to a power outage of the entire transmission line, resulting in immeasurable economic losses

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