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is a normal conductor can be used a core in windings if not what is the winding core speciality.
2 4575can we light the mercury vapour (tube light)with out a 1).starter and 2).choke in our homes if yes explain how?
5 7840How to calculate the KA rating for a circuit breaker if we know the KVA rating of the generator feeding it?
2 186521. 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?
224211. 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 565721. 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 9333what is the difference between power transformer & distribution transformer and what are their ratings respectively?
4 8104sigal 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 5738Post New Electrical Engineering Questions
im working in one private compeny in gujarat. i was complet diploma electric in 2010 from gujarat technical board. now i want electric supervisor licence in gujarat but i dont't know when i apply? plz give me address of the licence dippartment office in gujarat. gandhinagar
What is the previous name of Cox's Bazar
How to test the Secure Elite 440 Multi function meter working condition.
Explain advantages of storage batteries
v/f drive basic princeple
How phase to phase voltage comes 440V.
Can you please explain creepage distance in detail, for a 6.6kV cable head what must the distance be and how do you determine it?
which network topology offers the greatest level of tolerance?
What types domain of laplace transforms? What behavior can laplace transform predict how the system work?
how make megger test for control cable like 12c x 1.5mm and what it apply voltage and test timing details.
in conventional fan regulators how the current varies with speed?
Why compensation is necessary in feedback control system?
Define branch?
how to calculate the battery AH
how give earthing conection to household equipment?
