The difference between high voltage distribution room and low voltage distribution room
- Power and voltage levels
(1) Low-voltage distribution room: usually refers to distribution equipment with a voltage level of 1000V or below, especially the 400V distribution room for 10kV or 35kV station transformer outgoing lines. Its power is relatively small and is mainly used for power distribution to users or households and direct equipment.
(2) High-voltage distribution room: refers to the distribution equipment with a higher voltage level, generally referring to the 6kV-10kV high-voltage switch room. It has a large power and can be responsible for a larger range of power distribution management.
- Application places and functions
(1) Low-voltage distribution room: widely used in industrial enterprises, public buildings and residential areas. Its main function is to transmit electric energy from the substation of the high-voltage transmission system to the various electrical equipment required by users. Due to its simple structure, low power, low current density and high system power supply reliability, it is a very important part of the power system.
(2) High-voltage distribution room: Usually used in substations in power systems or distribution systems of industrial enterprises. Its main function is to convert high-voltage power into low-voltage power to meet industrial or civilian needs. High-voltage distribution rooms include many equipment, such as transformers, switchgear, instruments, etc., which are used to complete functions such as control, protection, measurement and monitoring.
- Equipment Features and Safety
(1) Low-voltage distribution room: Although the voltage is relatively low and the risk of electric shock is relatively small, it is still necessary to pay attention to potential safety hazards such as short circuits and leakage caused by poor circuit contact and aging of electrical equipment. In order to ensure the safety of workers, it is still necessary to equip them with protective equipment such as insulating boots.
(2) High-voltage distribution room: It has the advantages of safety, reliability, environmental protection, and energy saving. It can optimize the grid structure, reduce load power and loss, and improve power quality, thereby achieving efficient energy utilization. At the same time, the high-voltage distribution room is also safer and can operate stably in dangerous environments to ensure the reliability of electricity.
(1) Voltage step-up and step-down: The low-voltage distribution room is mainly used to aggregate the regional incoming line switch cabinets and distribute electric energy; while the high-voltage distribution room involves the input of high-voltage power and the process of converting it into low-voltage power, including input bus switch cabinets and output bus switch cabinets.
(2) Maintenance and management: High and low voltage distribution rooms are key facilities for power supply, and their equipment maintenance and management are crucial to ensuring power supply. Preventive testing and maintenance of equipment are required regularly to ensure the normal operation of the equipment and the stability of power supply.
In summary, there are significant differences between low-voltage distribution rooms and high-voltage distribution rooms in terms of power, voltage level, application location, function, equipment characteristics and safety. These differences make the two play different roles in the power system and jointly maintain the stable supply of electricity.