what shoud be strength and weakness to impress interviewer????????

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what is the relationship between current and frequency in AC circuit?

3 Answers  

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what are different type of triping equipmen like MCB,MCCB and their differences

3 Answers   ABB, Schneider, UPPCL,

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What is auto transformer?

7 Answers   L&T,

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what is the formula for 3 phase motor starting cureent deatials 3phase 148A delta 415v, efficiancy 94% can we run the motor with 200A incoming supply

2 Answers  

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how rating of transformer is selected for any new plant/what kind of load is cosidered/what kind of fadtors are considered/ pz give standard procedure

2 Answers  

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Is it advisable to buy a plot for house construction near High Tension Power lines? If it so how much distance it should be away from power line? Iam residing at Chennai, Tamilnadu, India.

2 Answers  

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how much current (in MW)can be carried max. through S/C dog & Panther Conductor ?

1 Answers  

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in 220 kv substation,what is the mean of avr voltage reading? means at oltc temp. 36 the avr voltage was 109v.so what the mean of 109v

1 Answers  

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draw 3 phase rectifier diagram

0 Answers   Equate,

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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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R=*¶ l/a

0 Answers  

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