过电流保护装置在电力系统是必不可少的，限制了威胁人类生命和财产损失。

Overcurrent protection devices are essential in electrical systems to limit threats to human life and property damage.

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导线的电阻的电线的增加，温度升高，它限制电流流过电路。

The electrical resistance of the wire increases as the wire's temperature increases, which limits electrical current flowing through the circuit.

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因此，电容器C4(穿过电阻器R2和IGBTQ2)的充电电流也受到限制，由此不会有部件被击穿。

Hence, the charging current of capacitor C4 (running through resistor R2 and IGBT Q2) is also limited so that no components can break down.

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因此，电容器C4(穿过电阻器R2和IGBTQ2)的充电电流也受到限制，由此不会有部件被击穿。

Hence, the charging current of capacitor C4 (running through resistor R2 and IGBT Q2) is also limited so that no components can break down.

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