Power system deep ultraviolet arc light monitoring and protecting device

Abstract

The invention relates to the technical field of power systems, and particularly discloses a power system deep ultraviolet arc light monitoring and protecting device which comprises an acquisition unitand an industrial control unit in communication connection with the acquisition unit, wherein the acquisition unit comprises an arc light acquisition module, a current acquisition module and a temperature acquisition module, the industrial control unit comprises a signal processing module, the arc light acquisition module is in communication connection with the signal processing module through anoptical fiber, the current acquisition module is in communication connection with the signal acquisition module through a cable, and the temperature acquisition module is in communication connectionwith the signal processing module. By detecting the arc light and the fault current, the total fault removal time is controlled within the bearable arcing time of the switch cabinet, the harm caused by arc light short circuit is reduced to the minimum, the interference of other light except the arc light can be effectively avoided, nearby workers are protected against the harm of the arc light tohuman bodies, and the power failure time of users is reduced to the maximum extent.

Description

technical field [0001] The invention relates to the technical field of power systems, in particular to a deep ultraviolet arc monitoring and protection device for power systems. Background technique [0002] In the high-voltage switchgear, the connection points of many high-voltage electrical equipment (such as the cable terminal at the connection between the end of the high-voltage and low-voltage cables and the circuit breaker, transformer, motor and other electrical equipment or lines, the moving and static contacts in the switchgear, etc.) are the power transmission process. the weakest link in . When the switchgear is supplied with normal working current, due to resistance loss, eddy current loss and hysteresis loss, etc., electric energy is converted into heat energy, part of which is lost to the surrounding medium, and the other part heats the current-carrying conductor to increase its temperature; On the one hand, the input and removal of loads cause the temperature...

AI Technical Summary

Problems solved by technology

[0003] When the insulation strength of the connection points of each electrical equipment decreases, the contact resistance will increase, and abnormal heating will also occur when the normal current passes through, which will greatly increase its aging speed, resulting in when the current does not meet the protection action requirements. explosion occurs

This may further cause serious accidents such as equipment burning and switch cabinet explosion.

Images