source：jinzhong transmission and distribution time：2020-11-24 Number of hits：910of hits
Jinzhong Power Transmission and distribution company specializes in the production of DC circuit breaker, DC surge protector, photovoltaic fuse, dual power supply, kb0, fire monitoring, multi-function instrument, intelligent lighting module, molded case circuit breaker, small circuit breaker, surge protector, high-voltage circuit breaker, high-voltage disconnector.
The distribution box is a large number of parameters on the data, which generally constitute the low-voltage forest. According to the electrical wiring, the switch equipment, measuring instruments, protective electrical appliances and auxiliary equipment are required to be assembled in the closed or semi enclosed metal cabinet or on the screen to form the low-voltage distribution box. In normal operation, the circuit can be connected or disconnected by manual or automatic switch.
The purpose of the distribution box: reasonable distribution of electric energy, convenient for the opening and closing operation of the circuit. It has a higher level of safety protection and can directly display the on state of the circuit.
Distribution box principle: according to the requirements of electrical wiring, the switchgear, measuring instruments, protective electrical appliances and auxiliary equipment are assembled in a closed or semi enclosed metal cabinet or panel to form a low-voltage distribution box. In normal operation, the circuit can be connected or disconnected by manual or automatic switch. In case of fault or abnormal operation, the circuit is cut off or the alarm is given with the help of protective appliances. With the help of measuring instrument, various parameters in operation can be displayed, and some electrical parameters can be adjusted to prompt or send signals to deviate from normal working state.
The distribution cabinet (box) is divided into power distribution cabinet (box), lighting distribution cabinet (box) and metering cabinet (box), which are the last level equipment of distribution system. Power distribution cabinet is the general name of motor control center. The power distribution cabinet is used in the situation where the load is dispersed and the circuit is less; the motor control is used in the occasion where the load is concentrated and the circuit is more. They distribute the electrical energy of a circuit of the upper power distribution equipment to the nearest load. This equipment shall provide protection, monitoring and control of the load.
Power cabinet is a combination of electrical control cabinets that provide power for the normal operation of the whole machine, including contactors, frequency converters, high-voltage cabinets, transformers, etc
Function of power cabinet:
1. Power supply to electrical equipment (power supply to equipment);
2. Electric equipment for start stop operation (with start stop button);
3. Check the operation of the equipment (set signal indicator, ammeter and voltmeter);
4. The power cabinet of protective electrical equipment (circuit breaker) is a power distribution cabinet, which provides power and control for power equipment (generally refers to motor).
10kV High voltage cabinet and 400V low voltage cabinet (no matter incoming line, outgoing line, metering, capacitance, contact, voltage transformer, etc.) can be called distribution cabinet.
The equipment below 400V low-voltage cabinet is called power cabinet if its secondary outlet load is power facilities (such as fan, motor, water pump, etc.). And the load for lamps, switches, sockets, such equipment is known as the distribution box.
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