is a normal conductor can be used a core in windings if not what is the winding core speciality.
2 3718can we light the mercury vapour (tube light)with out a 1).starter and 2).choke in our homes if yes explain how?
5 6327How to calculate the KA rating for a circuit breaker if we know the KVA rating of the generator feeding it?
2 168361. 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?
174911. As per the theory current doesn’t flows in Neutral, but practically it is not applicable, explain why? 12. How to take the Vector Group Test in Transformer? What is the purpose of doing Vector Group Test? 13. Why the transmission lines are in 11kV, 22kV, 33kv, and why not 10kV, 20kV, 30kV? 14. Why do we generate 3 Phase AC Supply? It is possible to generate 4 Phase and 5 Phase explain it? 15. Explain why the Voltage drop will happen in 3 Phase line? 16. What is the equipment used to control the generator output? 17. What are the factors to be considered during the Synchronization? 18. What should be value of Circuit breaker operating time and tripping time? 19. Why the CT Secondary is rated as 5A generally? 20. At which time Synchronous generator act as a Synchronous Condenser?
1 491021. What is the purpose of taking Capacitance and Tan Delta Test in Transformer bushing? 22. What are the protections to be used for Generator? 23. Draw the vector diagram and condition for the following: 1) Dyn1 2) Ynd0 3) YnYn0 24. What happens when the polarity changes in CT? Explain briefly? 25. Explain the Term in CT Name Plate – Class: 5P10
3 7963what is the difference between power transformer & distribution transformer and what are their ratings respectively?
4 6784sigal phase supply is 230 v ac two phase supply is 415 v ac then why three phase supply having supply is 415 v ac why not 690v ac
2 4830Post New Electrical Engineering Questions
What is the formula to calculate the rating of power cable for three phase current.
I Need standard operation procedure(SOP)for 500kva Oil type transformer oil filtration & Procedure for IR value checking.
Why Utility Distribution System in India is mainly at 11 kV? Why not Utility go for 33 kV?
What is meant by time harmonics and space harmonics?
Why do power lines not short out when they fall into water?
What is Antipumping Function & If we have C.T how we find the Ratio ?
how does WTI work ?
Why the arms of delta in a delta-wye power transmission system are kept constant??
Tell me the reason of connecting domestic t/f primary in star or delta,and also secondary side.
how can get electrical c licence.now i am working in spining mill , transformer capacity 2750KVA. SANCTION DEMAND 2250KVA. PLEASE ADVISE ME . MY CONTACT NO 09944226823
WRITEDOWN FEW RELY CODES
how can we select the type of wire.what factors we have to look on it , do we have some formula to calculate it. please guide me on it
is there any lightning by passer is arranged in ship like buildings?
is it possible to start a motor in felid connected to a remote mcc
What is the need of generator relay panel
