New Scheme of the Intelligent and Selective Fast-Tripping Overcurrent Protection
Jiang Yu-lei · Low Voltage Apparatus · 2009
The reasons of override trip in underground power supply system was studied.With the characteristics of underground power supply system,a new intelligent chain-type protection program was proposed.Its way to realize current protection with the process was introduced in detail.The result shows that the protection can improve the the safety level of the power supply system.