Answer Posted / ramesh

Brushes are used in Exciter to facilitate current in
revolving rotor where Field winding is placed. In generators
for Rotor earth fault and as earth to remove any static
current induced in the rotor.

why is a power transformer used only occasionally?it is used to step up at generating stations?and that needs to be done all day long !!!!!!!

1818

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can we find the inductance of a induction motor?

1919

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HOW TO CALCULATE AMPs OF CURRENT TRANSFORMER IN HT Panel

2308

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Why Neutral Isolation is required?

2178

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HOW TO CALCULATE THE REGULATION OF 100 AND 25 KVA TRANSFORMER

1893

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What is the physical significant of power factor?

1876

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Is there any type of starter for DC motor other than two point,Three point and Four point starters?

1983

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What is power relay?

1187

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What do you mean by ratio correction factor of instrument transformer?

1126

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What is excitation in case of dc motor?

1111

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What is a feedback in control system?

1159

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How to decide CT & PT ratings for a given transmission line carrying some rated voltage?

2276

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How to calculate cable size by using load.?? Any formula...

1315

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1.ZEBRA conductor(large size) 2.KUNDHA conductor( small size ) 3.panther conductor(very small ) 4.lepard conductor (very very small)

2872

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specific difference of ICT&Auto Transformer

1845

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