Step-down autotransformer rotor excitation frequency starting circuit


Posted on Mar 28, 2007

Circuit shown in Figure 3-187. When you start, then people start auto ZQB step-down transformer. After a period of delay, ZQB out of operation, the motor increases the speed at


Step-down autotransformer rotor excitation frequency starting circuit
Click here to download the full size of the above Circuit.

full pressure. When the speed rises above and quasi-synchronous speed, resection (short) discharge resistors R :, join DC excitation in the rotor winding, synchronous motor synchronous operation was led people to end the startup process.




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