WHAT IS MEANT BY DERATING OF THYRISTOR?

2467

No load tap changing transformer working

1222

What should be the protection scheme for a 15kw, 3-phase motor working in a lathe machine.

1568

what are the steps involved in generator load test?

1096

Dear sir my name Ankit i m Diploma holder present working in Welspun Corp ltd Anjar as Asst.engg (salary 14400/month ctc) i Would like to change my company also i have selected in ford India pvt ltd Sanand as trainee Tech with salary 12000/month so please suggest me for changing my job hope for *ve response

2428

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?

1768

What is the basic principle of welding process?

1677

What will happend if given Vfd out put to step up transformer

1247

What are the advantages of the three-phase motor over single phase motor?

602

What are the advantages of vscf wind electrical system?

637

1.dg on load alarm/stop alarm... 2.dg on load. piu alarm alarm kaise chek krte hai

1390

how to control dc motor?

1422

what is meant by neutral compensation factor and where it is used

1453

what is servo motor and how to work it.

1464

Motor,transformers,capacitor tubelight etc....

1212