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If a combination of HRC fuse and a circuit breaker is used, the circuit breaker operates for
- a)short-circuit current.
- b)the combination is newer employed in practice
- c)under all abnormal currents.
- d)low overload currents.
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
If a combination of HRC fuse and a circuit breaker is used, the circui...
The HRC fuse element carries the short circuit or faults current for the specific interval of time. If the fault is removed in that specific period, then the fuse element remains safe and it does not melt or breaks.
If circuit breaker and HRC fuse both use in a combination, circuit breaker operates for low overload currents.
Most Upvoted Answer
If a combination of HRC fuse and a circuit breaker is used, the circui...
Explanation:
The combination of an HRC fuse and a circuit breaker is a common practice in electrical systems. The HRC fuse is used to protect against short-circuit currents, while the circuit breaker is used to protect against overloads.
However, when both devices are used together, the circuit breaker should be set to operate at a low overload current. This is because the HRC fuse will typically clear any short-circuit current before the circuit breaker has a chance to trip.
Therefore, the circuit breaker in this combination is primarily used to protect against low overload currents that may not be cleared by the HRC fuse alone.
In summary, the correct answer is option 'D' - the circuit breaker operates for low overload currents.
The combination of an HRC fuse and a circuit breaker is a common practice in electrical systems. The HRC fuse is used to protect against short-circuit currents, while the circuit breaker is used to protect against overloads.
However, when both devices are used together, the circuit breaker should be set to operate at a low overload current. This is because the HRC fuse will typically clear any short-circuit current before the circuit breaker has a chance to trip.
Therefore, the circuit breaker in this combination is primarily used to protect against low overload currents that may not be cleared by the HRC fuse alone.
In summary, the correct answer is option 'D' - the circuit breaker operates for low overload currents.
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Community Answer
If a combination of HRC fuse and a circuit breaker is used, the circui...
Because circuit breaker works for more than 100amp.and hrc fuse works on less than 100 amp.due to many unbalanced current situation occurs on main line hrc fuse burn quickly and c.b not burn may be this was reason.
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If a combination of HRC fuse and a circuit breaker is used, the circuit breaker operates fora)short-circuit current.b)the combination is newer employed in practicec)under all abnormal currents.d)low overload currents.Correct answer is option 'D'. Can you explain this answer?
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