Arc light protection device and switchgear

Abstract

The invention provides an arc light protection device and a switchgear. The arc light protection device comprises a control unit, an exit trip unit, arc light units arranged in switchgears to detect arc light signals of the switchgears, and current units arranged in the switchgears to collect current signals. The control unit is connected with the arc light units, the current units and the exit trip unit. The arc light protection device also comprises first indicator lights for displaying fault states of arc light of the switchgears; the first indicator lights are connected with the control unit. The first indicator lights display the arc light faults of the switchgears in real time, it is convenient for operators to know whether the switchgears are in arc light fault state or normal state, and therefore, after knowing the state information of the switchgears, the operators know which switchgears are under arc light fault and which switchgears are normal; it is further possible to check out locations of the switchgears that are under arc light fault, it is convenient for operators to carry out checkout and subsequent analysis, and the arc light safety problem of the switchgears issolved.

Description

technical field [0001] The invention belongs to the technical field of electric equipment, and particularly relates to an arc light protection device and a switch cabinet. Background technique [0002] In my country, in the failure of medium and low voltage busbar pipelines, the main equipment and personnel injuries are mainly caused by arc light. However, most of the medium and low voltage busbars in our country are not equipped with fast busbar protection, but only use simple arc suppression devices and transformer backup. Protect. These protections have low intelligence and slow action speed, which often prolongs the fault removal time, thereby further expanding the degree of equipment damage, and even causing major accidents, affecting the safe operation of the entire power grid. [0003] Arc light often occurs in the distribution medium-voltage switchgear. The distribution medium-voltage switchgear is the power supply hub of the auxiliary power supply system of the whol...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide an arc protection device, which is used to solve the problem that the arc protection device in the prior art is inconvenient for the operator to know in real time whether an arc fault occurs in the switch cabinet; at the same time, it also provides a switch cabinet

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