Title :
Study on Dismantling the Closing Resistor of 500kV Breaker in Henan Power Grid
Author_Institution :
Henan Electr. Power Res. Inst., Zhengzhou, China
Abstract :
This paper analyzes Henan power circuit breakers with closing resistors operation. Selecting a typical substation as the research object, switching overvoltage and surge arrester energy absorption were simulated without the closing resistor. Measured through the field test verified the accuracy of the simulation. The relations between line length and over-voltage level was also analyzed. The result provides the foundation for selection of new construction and breaker transformation.
Keywords :
circuit breakers; power grids; power system protection; Henan power circuit breakers; Henan power grid; closing resistors operation; surge arrester energy absorption; switching overvoltage; voltage 500 kV; Circuit breakers; Inductors; Power transmission lines; Resistors; Substations; Switches; Voltage control;
Conference_Titel :
E-Product E-Service and E-Entertainment (ICEEE), 2010 International Conference on
Conference_Location :
Henan
Print_ISBN :
978-1-4244-7159-1
DOI :
10.1109/ICEEE.2010.5661088
