Power system rated voltage and voltage level
Rated voltage is a standard voltage stipulated by the country, and is the voltage value on which electrical equipment is designed. When working at this voltage, the technical and economic performance indicators of electrical equipment can reach the best state, ensuring long-term reliable operation.The rated voltage specified in my country can be divided into three categories according to the voltage level and the scope of use:
The first category refers to the rated voltage of 100V and below. Mainly used for safety power, lighting, battery and special equipment.
The second category refers to the rated voltage between 100 and 1000V, which is the most widely used and has the largest number.
The third category refers to voltage levels of 1000V and above. The generation, supply, transmission, distribution and consumption of the power system all adopt this voltage level.