1. Over current relays
2. Temperature sensitive relays
3. Thermal relays
4. A combination of (a) and (b)
Temperature sensitive relays
1. The lighting voltage
2. The switching voltage
3. Corona
4. RI
The switching voltage
1. Type of circuit breaker
2. Inductance of the system only
3. Capacitance of the system only
4. Inductance and capacitance of the system
Inductance and capacitance of the system
1. 35 kA
2. 49 kA
3. 70 kA
4. 89 kA
89 kA
1. 50 kV
2. 100 kV
3. 60 kV
4. 89 kA
100 kV
1. Lighting conductor and capacitance are used
2. Lighting conductor and lighting arrester are used
3. Lighting arrester and capacitance are used
4. Lighting arrester alone is used
Lighting arrester and capacitance are used
1. 100 k
2. 10 k?
3. 5 k?
4. 1 k?
5 k?
1. 2.5 sec
2. 1.25 sec
3. 1.575 sec
4. 3.2 sec
1.575 sec
1. 14.2 kHz
2. 13.29 kHz
3. 10 kHz
4. none of these
13.29 kHz
1. All breakers
2. Bulk oil breakers
3. Minimum oil breakers
4. Air blast circuit breaker
Air blast circuit breaker