大量调研资料证明，越级跳闸事故（以下简称越跳）是我国煤矿高压供电系统目前普遍存在的严重问题。
Based on investigation of large amount of data, it is found that currently inadequate tripping failure of high tension power supply is a serious problem that exists universally in Chinese coal mine.
针对煤矿高压防爆开关综合保护装置主要存在的短路故障越级跳闸和漏电保护动作不准确的问题进行了深入的研究。
This paper conducts a thorough research to the problem of short circuit override trip and inaccurate leakage protection action mainly existing in HV flameproof switchgear comprehensive protection.
针对煤矿高压防爆开关综合保护装置主要存在的短路故障越级跳闸和漏电保护动作不准确的问题进行了深入的研究。
This paper conducts a thorough research to the problem of short circuit override trip and inaccurate leakage protection action mainly existing in HV flameproof switchgear comprehensive protection.
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