Answer Posted / ganesh kumar mynampati
The cable size of the motor is decided from number of
poles, size of the motor, air gap length,number of armature
slots
| Is This Answer Correct ? | 11 Yes | 60 No |
Post New Answer View All Answers
what is meant by carrier aided trip protection in transmission line
How much minimum insulation required between 11kv/3.3kv transformer windings?
In Dyn11 power transformer if any one of the 3 phases connected to earth in star connected side then please explain effect of the current flow in delta connected side of transformer.(In this case if one phase is shorted to ground in star connected side then we observe the current flow in two phases only not three phases in delta connected primary side. Please explain why it is so?)
If you have an earth with pilecap then your resistance is really low. why and how?
I have been using an 600VA with 0.6 p.f UPS with my desktop which has 450W power supply unit. Can anyone explain how can this happen . Because the output of the UPS is 360W (600*0.6) (<450W)
where rlc series ckt used?
I have 4 busbar of 1000 ampere. we use 4 busbar to make 4000 ampere in one phase.my problem is that when we applied 60% load on that then busbar produced high noise.what is the reason of that and how can i minimize that noise.
What is measurement?
what is auto re-closer?
what is meant by loss of field in a DC motor? how a universal motor works?
i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value
How can I calculate ISF of current transformer?
how pt is using
L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.
hi if anybody got model questions for cpcl Grade'A' electrical engineer position.send it to my mail please krishkumar22@gmail.com
