How to connect the three-phase 380v motor?

The connection mode of 380v three-phase motor mainly adopts star connection, and the conventional connection mode of motor is mainly divided into two types. However, the nameplate of the 380v three-phase motor will also be marked with the corresponding wiring method, so when wiring the 380v three-phase motor, the actual wiring only needs to follow the wiring method on the nameplate of the 380v three-phase motor.

1 and connection mode of 380v three-phase motor (1) The first connection mode of 380v three-phase motor is star (y) connection mode, which connects the head end or tail end of the three-phase stator winding in the motor, and the other end of the three-phase stator winding is connected with three-phase alternating current for operation, which is suitable for three-phase asynchronous induction motors below 3kW. (2) Star connection is to connect three terminals of a three-phase load together as a common terminal, and lead out three live wires from the three terminals. (For example, A-phase load is represented by Ax, B-phase load is represented by Cz, that is, X, Y and Z are connected together to lead out three lines A, B and C) The voltage borne by each phase coil of the load is 220 volts, that is, the voltage between the live line and the neutral line is 220 volts. (3) The second connection mode of 380 V three-phase motor is triangle connection, that is, the three-phase stator windings are connected end to end. The connection between the head end of the first phase winding and the tail end of the third phase winding can be regarded as U phase, the connection between the head end of the second phase winding and the tail end of the first phase winding can be regarded as V phase, and the connection between the head end of the third phase winding and the tail end of the second phase winding can be regarded as W phase. In addition, the wiring method of 380v three-phase motor should be based on the actual nameplate wiring. (4) Angle connection-it is a connection mode that each phase of a three-phase load starts and ends in sequence. A-phase load is represented by Ax, B-phase load is represented by Cz, that is, X is connected to B-phase, Y is connected to C-phase, Z is connected to A-phase, and the three outgoing lines are Bx-phase, Cy-phase and Az-phase respectively. The voltage borne by each phase load is 380 volt line voltage, that is, the voltage between live wires. (5) completely lead the three-phase winding of the motor to the end cover for connection, there are six heads in the end cover, the lower three heads are connected together, and the upper three heads lead out three star-shaped connecting wires respectively; The upper and lower heads are vertically connected, and the triangular connection leads to three lines respectively. 2.380v three-phase motor (1) Wiring precautions There are three or three symmetrical windings in the stator of the 380 V three-phase motor. First of all, we must distinguish between the head end and the tail end. The head end and the tail end should be connected in a triangle, and only 220 volts can be connected. (2) Three tails (or three tails) are connected to point A, and the other three tails (or three tails) can be connected to 380 volts of A, B and C respectively, which is called Y connection; (3) When the power exceeds 20KW and cannot be directly started, most of them switch to Y to reduce the voltage after starting. 380v three-phase motor is a common three-phase motor specification, and 380v three-phase motor has many common tired centers, such as frequency conversion motor, lifting motor, yzr lifting motor and so on.