直流系统环路及绝缘故障诊断系统的研究

摘要

At present,there are 3 kinds of fault types often occurs in DC power supply system,include Ground fault、AC into DC system fault and two sets of DC system connection failure,The emphasis of this paper is to study the fault type of DC system and its detection method.to study two sets of DC system connection failure and its detection method.and Presents the calculation method of insulation resistance, loop resistance and AC voltage,Help to accurately detect various faults of the DC power supply system.%目前，在直流电源系统中常发生的故障类型主要有接地故障、交流窜入故障、两套直流系统环路窜电故障。本文重点是研究直流系统中单极、两极、以及交流窜入接地故障类型及其检测方法，同极性、异极性环网故障的类型及其检测方法，并提出了绝缘电阻、环网电阻及交流对地电压的计算方法，有助于准确地检测出直流电源系统的各种故障。