Where do we adjust the setting of thermal over load relay & how cal calulate.

1 Answers   Hilton,

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Why dc shunt motor in lathe, compound motor in rolling mills

1 Answers  

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how to calculate the conductor size for certain KV transmission line and distribution line?

0 Answers   Hyundai,

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A 100 kVA , 400 v/250 kv testing transformer has 8% leakage reactance and resistance on 100 KVA base . A cable has to be tested at 500 kv using the above transformer as a resonant transformer at 50 hz . if the charging current of the cable at 500 kv is 0.4 A find the series inductance required . Assume 2% resistance for the inductor to be used and the connecting leads . Neglect dielectric loss of hte cable . what will be the input voltage to the transformer ?

0 Answers   L&T,

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why the colour of insultor stack , petticoat is brown. Is it has some technical reason.

0 Answers  

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how to calulate short circuit current for the following: 1.cable connecting 11KV of 22KV/11KV transformer to 11Kv of 11KV/415V transformer 2.what cable size should i use.

0 Answers  

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what is the lemen of a single 5mm 13000mcd white led pls reply

1 Answers   Eskom, Sona,

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what is the VA(Volt-amphere)? define with calculation?

0 Answers  

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WHAT AC (HI VOLTAGE TEST) VOLTAGE SHOULD APPLY FOR 33KV CABLES.EXPLAIN IN DETAIL

12 Answers   NTPC, Voltech,

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what is the difference between current rating and breaking current of an MCCB? and for a known load how to calculate the current rating of a MCCB?

1 Answers   HPL,

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in 132 kv transformer , in which range of transformer oil bdv required ? if it has around 50-55 , then how it was insulated the winding ?

3 Answers   Voltamp,

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What is the resistance of the field winding of a d.c. Shunt generator kept low?

0 Answers  

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