why core losses and copper losses does not depend on power
factor?
Answer Posted / prabhakar jha
core loss is a variable loss in the core.due to alternating magnetic flux educed in core. copper loss is a constant loss its not depend in load & unload...
| Is This Answer Correct ? | 0 Yes | 2 No |
Post New Answer View All Answers
1. What is differential relay? How it operates? 2.How to calculate the Short Circuit Impedance in Transformer? 3.What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works? 4. While testing the 33KV Busbar by using Hipot kit, what should be the test voltage we have to apply? 5. What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer? 6. Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example? 7. Why restricted earth fault protection is needed? Why can’t differential Protection is sufficient? 8. What should be the minimum and maximum ohmic value for earthing? 9. Why DC Currents are not used in transformer? 10. What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?
How you calculating the 30 Hp 3 phase AC motor of power what size of cable is used for this motor?
Why syn. Generators are used for the production of electricity?
why a tester wont shock while testing the power in house
technically, what is the reason behind starting the motor star the delta connection .. and what other ways to do this rather than using " star-delta transformer"
how to define tell me about self
what is smart grid? why we use it? explain in detals bcoz i want give presentatin from it....
in Contactor opearation Why there is a difference in the values of the operate and release voltage in case AC supply
difference between power surge and switching transient
how to maintain frenquncy with syncronising sub-station for distribution
how hydrogen cooled alternator undergo maintanence ? that is hydrogen when come in contact with air can result into explosions .
what are the different sizes of U.G. cable & where these cabl;es are used according to voltage ..
What are n circles?
would the same effect be achieved by reversing the connection to one winding of the induction motor 3-phase?
what is ramping rate of generator