What is a high and low voltage cabinet? What is the difference between a high voltage cabinet and a low voltage cabinet?

High and low voltage cabinets are equipment in the power system and are used to distribute, control and protect power equipment and circuits. Among them, high-voltage cabinets and low-voltage cabinets are two common types, and they have obvious differences in voltage levels and uses.

 

High-voltage switchgear:

Voltage level: High-voltage cabinets are mainly used to carry high-voltage power systems and are usually used in parts with higher voltage levels. This usually involves voltages of thousands of volts (kilovolts).

 

Purpose: High-voltage cabinets are used to control and protect high-voltage circuits, including substations and transmission lines. Its main function is to ensure the normal operation of the high-voltage system and provide corresponding control and protection functions.

 

Construction: Due to operating high voltage, high-voltage cabinets usually adopt special insulation and arc-resistant designs to ensure safety and reliability.

 

Low voltage cabinet:

Voltage level: Low-voltage cabinets are used in low-voltage power systems, and their voltage levels are usually below one thousand volts. This includes systems for distributing, controlling and protecting low voltage equipment.

 

Purpose: Low-voltage cabinets are widely used in buildings, industrial facilities, commercial purposes, etc. to distribute electrical energy, control electrical equipment, and provide corresponding short circuit and overload protection.

 

Construction: The construction of low-voltage cabinets is relatively simple, usually using ordinary insulating materials because they operate at relatively low voltages.

 

Voltage level: The main indicator that distinguishes high and low voltage cabinets is the voltage level at which they operate. High-voltage cabinets are used in high-voltage systems, while low-voltage cabinets are used in low-voltage systems.

 

Application fields: High-voltage cabinets are mainly used in the field of power transmission and distribution, while low-voltage cabinets are widely used in construction, industrial and commercial purposes to distribute and control low-voltage power systems.

 

Structural design: Since high-voltage cabinets operate at higher voltages, their structures usually require more complex insulation and arc-resistant designs to ensure operational safety. The structure of the low-voltage cabinet is relatively simple.

 

Generally speaking, high and low voltage cabinets are important components of the power system. They are responsible for the distribution, control and protection of power systems at different voltage levels.