Title :
EHV Surge Suppression on Interrupting Light Currents with Air Switches I-Capacitive Currents
Author_Institution :
Consultant, Research and Development, I-T-E Circuit Breaker Company, Philadelphia, Pa.
Abstract :
This work presents an analytical study of the several phenomena associated with interrupting light capacitive currents in air with disconnecting switches. The computer work is based upon and duplicates observed field performance of EHV disconnects operating at 400 kV and 505 kV. Particular attention is given to magnitudes of current and voltage surges produced as a function of bus megavoltamperes, switch resistance, and capacitance load. Simplified equivalent circuits and concepts are introduced to permlit easy analysis of EHV switching problems.
Keywords :
Circuit faults; Circuit testing; Magnetic cores; Magnetic flux; Magnetic switching; Power transformer insulation; Surges; Switches; Switching circuits; Transformer cores;
Journal_Title :
Power Apparatus and Systems, IEEE Transactions on
DOI :
10.1109/TPAS.1965.4766120
