Detection system for grounding protection function of intelligent switchgear in distribution network system

Abstract

The invention relates to an intelligent detecting system for detecting the single phase grounding protection function of an intelligent switch device based on a 10kV neutral non-grounding distribution network system. The intelligent detecting system comprises a current operation device, a zero sequence voltage operation device, an intelligent switch detection device, a simulation load, an intelligent protection device, a communication device, and a detection backstage management system. The intelligent detecting system has the advantages of having zero sequence voltage, zero sequence current, being capable of detecting the single grounding protection function of the intelligent switch device, conducting total number detection and acceptance check, according to performance requirements, on the intelligent switch device to be installed, ensuring safe and reliable operation of the device, giving full play to the effective function of an intelligent power grid, and improving power quality.

Description

technical field [0001] The invention relates to a detection of the intelligent protection function of an intelligent switchgear, in particular to an intelligent detection system for detecting the single-phase grounding protection function of an intelligent switchgear based on a 10kV neutral point ungrounded distribution network system. Background technique [0002] With the implementation of the State Grid's powerful intelligent grid project, more and more intelligent circuit breakers with different functions have been put into operation on the grid, especially the demand for intelligent circuit breakers with single-phase grounding protection is increasing. At present, all power supply management departments across the country are still continuing the traditional inspection and acceptance methods to check and accept intelligent switches, only for power frequency withstand voltage and overcurrent protection acceptance for intelligent switches, and there is no means for its sin...

AI Technical Summary

Problems solved by technology

At present, all power supply management departments across the country are still continuing the traditional inspection and acceptance methods to check and accept intelligent switches, only for power frequency withstand voltage and overcurrent protection acceptance for intelligent switches, and there is no means for its single-phase grounding protection function and communication background management function. Therefore, all kinds of switchgear without single-phase grounding protection function and communication background management function have also passed the current acceptance and put into power grid operation, which affects the location and elimination of grid faults and affects the restoration of power supply Time and power supply quality, so the development and research of a detection system for intelligent switchgear is the current priority

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