In short circuit test on a 3 pole, 132 kV circuit breaker, the following observations are made:
Power factor of fault = 0.4
Recovery voltage is 0.9 times the full line value.
The breaking current is symmetrical, frequency of the oscillations of restriking voltage is 16 kHz. If both neutral and fault are grounded, the a value of average RRRV is _______ (in kV/μ sec)
Enter numerical value using the virtual keypad. Round off where necessary.