The on-site working principle of the small power distribution unit means that in the power system, the small power distribution unit is used as a power distribution and control device to transmit power to different circuits and equipment. Its working principle includes the following aspects:
Electric energy input: The small power distribution unit transmits electric energy from the grid to the inside of the small power distribution unit through the power line, and is usually controlled and protected by a power switch.
Distribution of electric energy: The interior of the small power distribution unit is equipped with multiple branch circuits, and each branch circuit controls the current and protects the safety of the circuit through devices such as fuses and circuit breakers. This allows power to be distributed to different consumers or circuits as required.
Control function: The small power distribution unit is usually equipped with various control components, such as button switches, relays, etc., for switching, regulating and protecting the control circuit. These control elements can be operated manually or automatically to ensure proper operation of the circuit.
Safety protection: The small power distribution unit also has safety protection functions, such as leakage protectors, overload protectors, etc. These devices can detect and isolate faults in the circuit in time to prevent excessive current flow or threats to personal safety.
Through these working principles, the small power distribution unit can realize the distribution, control and protection of electric energy, and ensure the normal operation and safe use of the power system.