what should be the air clearence between phase to phase, phase to earth in Medium voltage switchgear for 3.3kv,6.6kv,11kv,22kv and 33kv? Which is to be referred for this?

1 Answers   DLF, Sanmar, SEC,

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If we tell 60 sq.mm. 3-1/2 core cable,then what does it mean ? 1) Each core section in the whole cable is of 60 sq. mm. 2) The whole cable is of 60 sq. mm. which is sub-divided into 3-1/2 core.

3 Answers   Cura HealthCare,

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Why we does earthing for transformer neutral point

5 Answers   amps, DLF,

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How do you determine the size of transformer radiators in a transformer?

0 Answers  

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Why battery rooms painted with dark colour

1 Answers   BAL, MSETCL Maharashtra State Electricity Transmission Co Ltd, Polycab,

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If I need to purchase a step-down transformer (from three phase 33kV 50Hz to 400/230V), what additional information do I need from the main supply power line?

1 Answers   MahaDiscom,

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How do you connect the capacitors on polyphase circuits?

10 Answers   L&T, Transco,

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Why generating power limited to 11kv?

4 Answers   PSU,

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How can we get a Neutral from a three phase suply? If we meet all three phases at a point to take neutral then why dont thay get sparked?

1 Answers  

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what is the meaning of the symbol << >> put in transformer drawing

0 Answers   TATA,

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How phase displacement change in the over current relay coils.

0 Answers  

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why contactors are used ...? is contactors and relays are same ...?

5 Answers  

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