engineering recuitment CSPTCL JE Electrical Mock Test 2023 Power Electronics and Drives Electric Drives Speed Control of Three Phase Induction Motors
In the speed control of a slip ring induction motor using slip power recovery scheme ______.
1
The efficiency increases but power factor decreases.
2
Efficiency improves and power factor remains constant.
3
Power factor improves but efficiency decreases.
4
Both power factor and efficiency improve.