Answer / mf.khan

Transformer size can be calculated on Maximum Dammand Load.

For 122KV MV Switchgear fault level should be 350MVA.

Answer / ravindra

Transformer rating calculated in KVA. We can measure any
transformer rating from its HT & LT Bushing.

Write the analogous electrical elements in force voltage analogy for the elements of mechanical translational system.

0 Answers  

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I want to know the standards for earthing system as per IEC, BIS & IEEE.

2 Answers  

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The unit of current is the:(a) Volt(b) Coulomb(c) Joule(d) Ampere

2 Answers  

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why DG sets power factor is 0.8 lagging.

1 Answers   Cummins,

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How can I calculate per unit (KWH) fuel (Gas/ Diesel both) consumption 1MW unit?

0 Answers  

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In winding design, the angle of chording (β) is nearly equal to A 45 degree B 60 degree C 30 degree D 90 degree

1 Answers   Reliance,

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How to calculate wire length,size & current? ( related to control panel)

0 Answers   FSS, GK Controls, Panel Tech,

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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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which motor is used in mixies

10 Answers  

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we touch other end of the tester supply, why do not get shock?

7 Answers   L&T,

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CAN ANYBODY PL TELL ME WAT FACTORS CAN CAUSE UNDERVOLTAGE ON A BUS??? PL LIST ALL THE REASONS WITH SOME EXPLAINATION

3 Answers  

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what are factors to be consider in electrical installation like load factor,diversity factor .....

0 Answers  

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