What is PIR (pre inserting resistance) in 400kv EHV SF6 BREAKER? Why it use?

1 Answers   Adani,

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how we decide scurt (disc) of insulator with respect to kv rating

1 Answers  

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What will be in Mahagenco Trade Test Exam? I want to know the same.

0 Answers   MahaGenco,

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what is High resistance grounding and whatis the criteria for the selection of High resistance grounding

1 Answers   MAHINDRA,

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WHAT ARE THE EFFECTS OF SERIES RESONANCE AND PARALLEL RESONANCE ON THE CIRCUITS PARAMETERS?

0 Answers  

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what are the protecyion of transformer & generators

0 Answers  

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what is electrical?

15 Answers  

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how to calculate singlephase motor efficiency?

0 Answers   Alstom,

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AL=0B9H,bl=75H, ADD AL,BL AL=____________? CF________? OF___________?

0 Answers  

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how we calculate the short circuit capacity of the busbar in LV & HT?

0 Answers  

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how many kw = one ton air condition?

2 Answers  

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1.why should we connect the measuring instruments in l.v side in short circuit test of a transformer? 2.why the power factor is less in open circuit test of a transformer?

0 Answers  

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