吉首大学学报：自然科学版Issue(4)：71-74,4.
住宅PE线故障电压监视系统设计
Monitoring System of Residential PE-Conductor Fault-Voltage
余悦兰1
作者信息
- 1. 国立华侨大学建筑设计院,福建泉州362021
- 折叠
摘要
Abstract
When there are single-phase grounding faults happening somewhere in the apartment buildings and the protection devices can not effectively cut the fault circuit,the fault voltage will pass along the mutual PE conductor and then transfer to all apartments,making the metal shell of electric appliances alive and causing electric shock accidents.Through the analysis of the feature of the circuit of various common protective grounding system with single-phase grounding faults,the author finds no matter what kind of grounding system is employed,the voltage between L and PE conductors will turn significantly low or close to zero in each family distribution box after the grounding faults happen.Therefore,an effective way to solve the problem is to stall undervoltage tripping device between L and PE conductor in each family distribution box as a monitoring device to find fault voltage on PE conductor.Finally,the paper introduces the design principle and application of the PE-conductor fault voltage monitoring devices.关键词
PE线/住宅/故障电压/监视Key words
PE-conductor/residence/fault-voltage/monitoring分类
动力与电气工程引用本文复制引用
余悦兰..住宅PE线故障电压监视系统设计[J].吉首大学学报：自然科学版,2011,(4):71-74,4.
