Therefore, they can provide reliability, less failure, and less maintenance worry.ĪC circuit breakers stand for alternating current. The reliable element of dc is that it can even be used when the ac circuit systems have failed. The dc circuit breaker can be used to close the flow or to trip the power in circuits. They can powerfully work like hv circuit breaker. The damage would not be the only concern, because safety hazards would also be issued during this instance. If the direction is changed in any way, it can cause immense damage to the circuit breaker and the system. DC circuit breakers have a unidirectional flow to them. Similarly, when there is a high fault current situation, the magnetic protection system acts as a protective barrier to defend the circuit. When the dc circuit breaker gets overload current, the thermal protection mode is enabled to protect it. DC circuit breakers use the principle of magnetic and thermal protections to function. They have a crucial role in protecting battery banks, solar PV arrays, inverters, and more. These breakers can be used to protect various amounts of loads in response to direct current. DC means direct current, therefore, dc circuit breakers deal with direct current.
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