Look at the nameplate of the motor. If the nameplate is marked with Y-shaped connection, triangular connection cannot be adopted. Because at the moment of starting, the starting current of triangle connection is three times that of Y connection, which is not good for power grid system and motor itself.
If there is a triangle connection on the nameplate, connect the wires according to this. If there is a large voltage drop in the start-up process of the power grid system, it will affect
When other electrical equipment is in normal operation, Y-△ step-down starting circuit can be used at this time, and the starting current of Y connection is △.
The connection mode starts one-third of the current, which greatly reduces the impact on the grid voltage.