Shopping mall power distribution cabinet supply solution

1.Definition and classification of low-voltage distribution cabinets

Low-voltage distribution cabinets are important equipment for receiving and distributing low-voltage electric energy in power systems, and are usually installed at the starting end of low-voltage power grids. According to the structural form, low-voltage distribution cabinets can be divided into fixed, drawer, power-controlled and combined types. Fixed low-voltage distribution cabinets are suitable for places with simple distribution lines and fewer transformers; drawer-type low-voltage distribution cabinets are easy to repair and replace, and are suitable for places with complex distribution lines; power-controlled low-voltage distribution cabinets are mainly used to control the start, stop and reverse operations of motors; combined low-voltage distribution cabinets integrate multiple functions together, and are suitable for places with high power distribution requirements.

2. Main functions of low-voltage distribution cabinets

The main functions of low-voltage distribution cabinets include: receiving electric energy from the upper power grid, distributing electric energy, and providing appropriate voltage and current to each power-consuming equipment; realizing circuit control, protection, monitoring and metering functions; ensuring the safe and stable operation of the power system, reducing energy consumption, and improving power utilization.

3. Selection and configuration of low-voltage distribution cabinets

When selecting low-voltage distribution cabinets, the following factors need to be considered: the size and characteristics of the mall's power load, the reliability, safety, economy, and maintenance convenience of the distribution cabinet. According to the mall's power demand, the capacity, circuit breakers, contactors, protective devices and other components of the distribution cabinet are reasonably configured to ensure the normal operation of the mall's power system.

When configuring low-voltage distribution cabinets, the following aspects should also be paid attention to:

• Selection of circuit breakers: According to the characteristics of the mall's power load, select appropriate circuit breakers to achieve protection against overload, short circuit and other faults.

•  Configuration of contactors: According to the control requirements of the mall's power equipment, select appropriate contactors to achieve remote control of motors and other equipment.

•  Setting of protection devices: Configure overvoltage protection, undervoltage protection, phase loss protection and other devices to ensure the safe operation of the mall's power system.

•  Monitoring and metering equipment: Configure voltmeters, ammeters, energy meters and other monitoring equipment to grasp the operating status of the mall's power system in real time.

Through reasonable selection and configuration, low-voltage distribution cabinets can meet the electricity needs of shopping malls and provide shopping malls with safe, stable and efficient power protection.

You can contact us anytime