Factors affecting the insulation of UHV systems

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Date

1978

Author

Büyüközer, Mesut

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Energization and reenergization overvoltages are the primary factors in establishing power system insulation level. As those overvoltages are generated by the closing operation of the circuit breaker which can be controlled, to produce the minimum surge, then insulation level can be reduced for economic system design. However other causes of overvoltages (steady state, fault, fault clearing) which are not controllable other than initial system design may produce sufficiently high voltages wiping out the savings made. In the thesis, the cause and maximum overvoltages produced during the normal operation, fault and fault clearing which would indicate the lower limits of surge reduction by the adjustment of circuit breaker are investigated and the measures to control these overvoltages are examined.

Subject Keywords

Circuit breaker, Transient recovery voltage, Rate of rise of recovery voltage, Opening resistor, Shunt reactor, Fault, Trapped charge

URI

https://hdl.handle.net/11511/6020

Collections

Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

M. Büyüközer, “Factors affecting the insulation of UHV systems,” Middle East Technical University, 1978.