Study on a New Low-Voltage Residual Current Protective System

Xiu Hua Zhang; Xiao Dong Han

doi:10.4028/www.scientific.net/AMR.694-697.822

Paper Titles

Index of Wind Power Grid System Based on Multi-Index Weighted Stability Method
p.799

Application of Corrected Clarke’s Transformation to the Solution of the Modal Analysis of Un-Transposed Transmission Lines
p.803

Optimization of Distribution Network Voltage Deviation Control Measures Based on LCC Theory
p.807

Research on Electric Field Characteristics and Insulation Performance of the High-Voltage GIS Isolation Switch
p.817

Study on a New Low-Voltage Residual Current Protective System
p.822

The New Type of Reactive Power Compensation Device under Direct Current Control and Indirect Current Control
p.826

UPFC Device Application on Power System Oscillations to Improve the Damping Performance
p.830

Wind and Solar Micro-Grid Including Energy Storare System
p.838

Analysis and Research of Short-Circuit Fault for SRD Based on Maxwell and Simplorer
p.842

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 694-697Study on a New Low-Voltage Residual Current...

Study on a New Low-Voltage Residual Current Protective System

Abstract:

A new theory of leakage protection was presented for the low-voltage power system. The corresponding circuit model was established, then the operational principle was analyzed and the experiment was researched in this paper. The results showed: when the single-phase leakage occurred, the leakage current will be greatly reduced before the protective system shut off the power source. And the power source cannot shut off immediately in the good isolation, which can keep the important load operating normally. At the same time, the protective system can detect the useful signal, which can warn immediately.