Insulation resistance of high voltage circuit breakers is more than
A) 1 mega ohms
B) 10 mega ohms
C) 100 mega ohms
D) 500 mega ohms
Correct Answer:
Verified
Q8: Overheating of relay contacts or contact born
Q9: Interruption of large currents by relay requires
A)arc
Q10: Shunt capacitance is neglected while considering
A)short transmission
Q11: The arc voltage produced in A.C. circuit
Q12: The time of closing the cycle, in
Q14: H.R.C. fuses provide best protection against
A)overload
B)reverse current
C)open-circuits
D)short-circuits
Q15: The ground wire should not be smaller
Q16: The delay fuses are used for the
Q17: Which of the following is the least
Q18: Resistance grounding is used for voltage between
A)33kVto66kV
B)HkVto33kV
C)3.3kVandllkV
D)none
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