engineering recuitment HPCL Junior Executive 2025 Mock Test Electrical Machines Alternator and Synchronous Motors
Which of the following is NOT one of the features of synchronous motors?
1
Synchronous motors are used in electrical power factor improvement.
2
For constant supply frequency, they behave as constant speed motors, irrespective of load condition.
3
Synchronous motors have the unique characteristics of operating under any electrical power factor.
4
Synchronous motors are inherently self-starting.