Answer / k.prakashchandra

Potential coil, as in the energy meter

what is tha online tapping and offline tappchange? which side connected primary or secondary and explain ?

4 Answers   Essar,

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usually why bettery voltage are 1.5V, even if you open a 9V battery there are six 1.5V batteries in series. is it not possible to increase this voltage other than putting in series

1 Answers  

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3ph motor running with unequal kw and different pf what are the reasons

0 Answers   UltraTech,

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What is Exitation voltage and Exitation current? What is the function of these in Alternator?

2 Answers   TC, Tisco,

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what is diff kav & kvarh?

3 Answers  

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For 33 kv HT line how much amps fuse to be fitted pls explain with formula

1 Answers   Suzlon,

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how to select electrical equipment such as fuse,dg,transformer,motor,msb,wire,cable as per the connecting load..please mention any books to design,take licence

0 Answers   Gujarat Electricity Board,

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Motor and transformer working with same principle so why motor rotates while transformer not?

7 Answers  

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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?

0 Answers  

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why we use lamination or layer by layer cor used?

4 Answers  

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wath is this mining of bts

1 Answers   Nokia, TATA,

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What is the full form of PSD & CSD ?

6 Answers   NIFT, PNG Power, PSD,

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