Directional overcurrent protection is used when it is necessary to protect the system against fault currents that could circulate in both directions through a system element, and when bi-directional ...
Therefore, in generation protection it is important to have voltage control on the overcurrent time-delay units to ensure proper operation and co-ordination. These devices are used to improve the ...
Recently, the State Grid Suqian Power Supply Company, in the 220kV new Siyang substation commissioning and start-up project, piloted the use of a whole-station simulated on-load test and the ...
Some of the major requirements in machine control power distribution discussed in these standards include using proper disconnect means, protecting personnel from contact with electrical hazards, and ...