Interested to Buy Any Domain ? << Click Here >> for more details...
starting torque is increased and current is decreased by
using external resistance in a slip ring induction motor.
How??
- 3 Answers
- 7987 Views
- I also Faced
- E-Mail Answers
Answer Posted / srb
It is because as the resistance is added in rotor ckt,no doubt impedance increases due to which current decreases but the effect of improved pf predominanats the inc. impedance & hence torque inc. After some tym when motor has achieved considerable speed effect of inc impedance predominanats over improved pf & hence torque decreases.
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
how to calculate the size of the HT cable
use of PIR in ehv breaker
Can anybody tell abt concrete encased earthing or grounding?
what is 400kv doble circuit quadpole tower?
how to avoid Saturation in C.T?
What is difference between YNyn0 and YNyn ??
How to determine alternating current frequency?
the typical output of a solar cell is........
why we are not giving the zone 1 trip command to the master trip relay
what happen if field of dc shunt motor opens? what is function of putting res. in parallel to one phase of 3 phase IM? the power supplied by 5A source in circuit is given by------Watt.
What is negative sequence over voltage element?
What is the settings of distance protection relay in 400 kv line
Please explain me abt PQ diagaram in the power sector.
What is the role of feedback in a closed loop control system?
How do you calculate the actual power consumption of an inductive load appliance. Say, a deep freezer of 200watts
