Forces that are parallel to each other and have same direction are called
In a vacuum circuit breaker, the vacuum is of the order of
The contact resistance of a circuit breaker is. of the order of
If a circuit breaker does not operate on electrical compound, the probable reason could be
The insulation resistance of high voltage circuit breaker is
Which of the following circuit breaker can be installed on 400 kV line
In modem EHV circuit breakers, the operating time between instant of receiving trip signal and final contact separation is, of the order of