Usage environmental requirements
1)The equipment requires indoor installation, good grounding, the color of the grounding wire must be significantly different from the color of the control wire, and the grounding resistance is less than 4Ω
2) The elevation height is not more than 1,000 meters, otherwise, the rated value should be reduced for use.
3) The maximum ambient temperature does not exceed +40℃, and the minimum is not lower than -10℃.
4) The relative air temperature is not more than 85%.
5) The installation inclination is not more than 5 degrees.
6) There is no violent vibration, no conductive dust, no corrosive gas and explosive gas.
7) It should be installed in a well-ventilated place.
Power grid requirements
1) Grid input voltage: three-phase 380 V;
2) Continuous fluctuation range of grid voltage: ≤±10%;
3) Three-phase voltage unbalance is less than ±5%.
4) The grid frequency change does not exceed ± 2% (that is, it should be be
