RRB NTPC/ASM/CA/TA Exam > RRB NTPC/ASM/CA/TA Questions > The trip coil of a circuit breaker is energiz...
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The trip coil of a circuit breaker is energized by:
- a)DC voltage
- b)AC voltage
- c)Any voltage (AC or DC)
- d)No supply is required
Correct answer is option 'A'. Can you explain this answer?
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The trip coil of a circuit breaker is energized by:a)DC voltageb)AC vo...
The trip coil of a circuit breaker is energized by DC voltage.
The trip circuit consists of a trip coil, battery and relay contacts. The relay contacts are the part of a trip circuit of a circuit breaker. Trip coil activates the circuit breaker opening mechanism, making the circuit breaker open.
The trip circuit consists of a trip coil, battery and relay contacts. The relay contacts are the part of a trip circuit of a circuit breaker. Trip coil activates the circuit breaker opening mechanism, making the circuit breaker open.
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The trip coil of a circuit breaker is energized by:a)DC voltageb)AC vo...
Understanding Circuit Breaker Trip Coils
The trip coil of a circuit breaker is a critical component responsible for the operation of the breaker. It ensures that the circuit can be interrupted in the event of an overload or fault condition.
Why DC Voltage is Used
- Operation Mechanism: The trip coil requires a reliable and consistent power source to operate effectively. DC voltage provides this stability, which is essential for the trip mechanism to function properly.
- Fast Response: DC voltage allows for quicker response times when the trip coil is energized. This ensures that the circuit breaker can operate swiftly to disconnect the circuit, thereby protecting the system from damage.
AC Voltage vs. DC Voltage
- Incompatibility with AC: Using AC voltage for trip coils can lead to inconsistent operation due to the alternating nature of the current. The coil may not receive a continuous and stable current, which could delay or prevent the tripping action.
- Current Fluctuations: AC voltage can cause fluctuations in current, which may not provide sufficient energy to trip the breaker effectively. This can result in failure to interrupt the circuit during critical conditions.
Conclusion
In summary, the trip coil of a circuit breaker is energized by DC voltage because it ensures reliable, fast, and effective operation, which is crucial for the safety and protection of electrical systems.
The trip coil of a circuit breaker is a critical component responsible for the operation of the breaker. It ensures that the circuit can be interrupted in the event of an overload or fault condition.
Why DC Voltage is Used
- Operation Mechanism: The trip coil requires a reliable and consistent power source to operate effectively. DC voltage provides this stability, which is essential for the trip mechanism to function properly.
- Fast Response: DC voltage allows for quicker response times when the trip coil is energized. This ensures that the circuit breaker can operate swiftly to disconnect the circuit, thereby protecting the system from damage.
AC Voltage vs. DC Voltage
- Incompatibility with AC: Using AC voltage for trip coils can lead to inconsistent operation due to the alternating nature of the current. The coil may not receive a continuous and stable current, which could delay or prevent the tripping action.
- Current Fluctuations: AC voltage can cause fluctuations in current, which may not provide sufficient energy to trip the breaker effectively. This can result in failure to interrupt the circuit during critical conditions.
Conclusion
In summary, the trip coil of a circuit breaker is energized by DC voltage because it ensures reliable, fast, and effective operation, which is crucial for the safety and protection of electrical systems.
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The trip coil of a circuit breaker is energized by:a)DC voltageb)AC voltagec)Any voltage (AC or DC)d)No supply is requiredCorrect answer is option 'A'. Can you explain this answer?
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