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What is the working principle of high and low voltage fuses?

Time:2023-09-08 16:25:55 Hits:

The working principle of high and low voltage fuses is to achieve overload protection and short circuit protection of circuits through fuses or fused components.

For overload protection, the fuse or fuse element inside the high and low voltage fuse will choose the corresponding breaking capacity based on the rated current. When the current in the circuit exceeds the rated current of the fuse or fuse element, the fuse or fuse element will generate heat and reach its melting temperature. Once the fuse or fuse element blows, disconnect the circuit to protect the safe operation of electrical equipment and circuits.

For short circuit protection, when a short circuit occurs in the circuit, the current will quickly rise to a very high level, exceeding the fusing capacity of the fuse or fuse element. In this case, the fuse or fuse element will quickly fuse and cut off the circuit. This can prevent excessive current in the circuit from causing further damage to the equipment and circuit.

In general, high and low voltage fuses achieve overload and short circuit protection of circuits through the melting of fuses or components, ensuring the safe operation of electrical equipment and circuits.

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