1.what is the difference between transformer differential and busbar differential.2)why we are using 2 slope for trafo diif and 1 slope for busbar diff.3)what is the purpose of metrosil and stabilizing resistor in high impedance relay circuit.4)how metrosil reduce the peak volage.5)what is the funtion of stabilizing resistor

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Tan delta point in transformer to be earth or not?

1 Answers   DMRC,

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I am working in 600MW power plant currently in erection phase. I came along this term and want to know its meaning in simple language, consider me naive!?? All motors shall be of energy efficient type EFF-2 as per IS:12615/ equivalent IEC / International Standard.

1 Answers   Punj Lloyd Ltd,

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What is the calculation for 1000Amps Air circuit breaker relay settings.

1 Answers  

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domine+aptitude test means?

2 Answers  

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what is the function of choke in a tubelight

3 Answers  

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what are the materials used in HRC fuse

3 Answers   Bhel,

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4.In which type of welding is a pool of molten metal used.....

3 Answers   ISRO, SSC, Vizag Steel,

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How to increase the specific gravity of DG batteries?

12 Answers   SCS,

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can we share mvar in parrelell connected alternators

2 Answers  

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The temperature rise in the sys, which leads to ….. a) Increases stress& length b) increases stress but decreases length c) Decreases stress & increase length d) decrease stress & length

1 Answers   Engineers India Limited,

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Dear sir, my knowledge about cable size determination is limited. Though I read examples I could not calculate the Cable size required for electric driven pump 40 KW, 380 Volt, 50 HZ, 50 meter from transformer and it is three phase star delta starting. Please help as there is no one in my surroundings to help.

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