engineering recuitment MAHATRANSCO AE Electrical Mock Test Power Systems Circuit Breakers Ratings of Circuit Breakers
A 3 phase oil circuit breaker is rated at 1600 Amps, 33 kV, 2000 MVA and 4 sec. Value of breaking current, making current and short time rating (current) will be respectively
1
34.99 kA, 89.22 kA and 34.99 kA for 4 sec
2
89.74 kA, 89.22 kA and 34.99 kA for 4 sec
3
72.99 kA, 100.20 kA and 34.99 kA for 4 sec
4
56.02 kA, 89.22 kA and 34.99 kA for 4 sec
5
Insufficient data