I. Overview
The equipment is suitable for distribution systems of power plants, petroleum, chemical, metallurgy, textile, high-rise construction and other industries, which is used as low voltage power distribution equipment for power distribution, centralized motor control and reactive power compensation of the power generation and supply system with a three-phase AC frequency of 50 (60) Hz, rated working voltage of 380V (600V) and rated current of 4000A and below in highly automated large power plants and petrochemical systems requiring computer interface.
II. Model implications
III. Normal ambient conditions
1. Ambient air temperature does not exceed +40 ℃, nor lower than -5 ℃, and 24h average temperature not higher than +35 ℃.
2. Atmospheric conditions: clean air, relative humidity at the highest temperature of +40℃ is not more than 50% and a higher relative humidity is allowed at a lower temperature, for example, 90% at +20 ℃, taking into account the condensation on the product surface due to temperature changes.
3. Altitude does not exceed 2000m.
4. Pollution level: Level 3.
5. The device is adapted to the transport and storage at the following temperatures: between -25 ℃ and +55 ℃,up to +70 ℃ in a short time (less than 24h), the device at these limiting temperatures shall not be damaged to the unrecoverable extent, and shall be able to work properly under normal conditions.
6. If the above conditions are not met, the user and the manufacturer should find solutions through consultation
IV. Basic parameters
