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is a normal conductor can be used a core in windings if not what is the winding core speciality.
2 4776can we light the mercury vapour (tube light)with out a 1).starter and 2).choke in our homes if yes explain how?
5 8169kindly,plesae tell me # the working of BTS # ITS CARDS SPECIFICATION # WORKING OF TRX,DUPLEXER,ASMA CARDS,FIFA # HOW WE ROUTE TRAFFICS # FLOW OF SMS,HOT CALLS,CALLS ETC
2097How to calculate the KA rating for a circuit breaker if we know the KVA rating of the generator feeding it?
2 189851. 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?
232611. 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 5810
what is debugging?
pls tell me about ups internal connection & we have given only 3 phase supply to ups system how get 4 wire (R Y B N )
List examples of voltage source?
what quantities of work done in terms of sq.mts/day/ of 8hrs for each varpenter (shuttering) and Steel fitter in terms of Tonnes. For slabs, Columns etc.?
Explain the difference between leds and pn junction diode?
what is sevice settings for mccb?How can be it setted?
Explain about safety integrated level protection? . How it was differ from other protections ?
What's -74C, dew point is better the -70C dew point In draying unit .
In a carnot engine with an efficiency of 40%, the heat rejected to the sink at 27 C is 60 kJ, then the heat supplied in kJ to the engine by the sources is
What is mean by STUB protection?
What is Negative Potential Bias
Starting times for soft starter & power factor is thier any standard or datas available in manufactures list. Kindly suggest.
A 100W electric lamp is supplied from a 115V, 60HZ source. The peak instantaneous power dissipated in the lamp filament is
Explain the difference between plc and dcs control system?
How does cost of generation from hydropower plant compare with other sources of electricity?
