what is cogging and crawling
Answer Posted / shruti mistry
Cogging
When no.of slots of rotor and stator are equal , then a magnetic interlocking takes place and motor does not start. lt occurs during starting of motor.
Crawling
In this phenomenon motor starts to run stably at speed lower than the rated speed due to presence of harmonics. It occurs during running of motor.
Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
how we can come to know that motor winding resistance which showing by DMM is right or wrong???is there any chart or something that we will compare & check???
why use phase displacement in transformer.and effect of phase displacement on transformer
what is the safety points of vaccum circuit breaker.
Give some example of fault limiting devices?
tan delta equation test on alternators
circuit diagram of trip circuit supervision relay
What is PEC??Applications........
How to calculate wire length,size & current? ( related to control panel)
What is meant by coupling capacitor?
why we take movement of rotor always in counter-clockwise direction in 3-phase induction motors?
why not starting switch first connect in direct on line starter?????
Percentage losses in power generation?
How isolater function when installed inelectrical 440V wiring
What if high voltage side circuit breaker of a ehv transformer instead of lvcb? Kindly elaborate.
EXPLAIN THE TRANSFORMER MAINTENANCE?