A REVIEW ON PRE INSERTION RESISTOR SWITCH MECHANISM

This paper an effort is made to review the inventions that have been done for the different delay mechanisms f or the Pre insertion resistor switch and placement with the circuit breaker. Circuit breaker is used in high voltage switch gear to break the current. Different researchers have designed the mechanism of Pre insertion resistor switch to give delay between circuit breaker or primary switch and closing resistor switch or auxiliary switch during the closing operation of circuit breaker. Researchers designed and placed the closing resistor switch in parallel or in series with the circuit breaker