Answer Posted / rajeev democrat

1. voltage lead to the current and our electrical equipment not work properly.
2. Revolving m/c has revolving antidirection.

on a three-winding transformer relationship delta-delta-star, on third winding why the relationship is a star? what are the advantages and disadvantages? Thank you and please help

1692

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what are pilot cells

2019

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why high speed tripping relay will be used in tripping circuit why not normal relay

1295

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If a rotary UPS is in line through grid power; What would be the impact on Power Factor if the load through rotary ups is 25% , 50% , 75% & 100%. Will the power factor reduce with less load?

1834

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Why negative feedback is preferred in the control system?

1213

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We have two APFC panels in same station. I need how to connect CT in two APFC panels.can we take one CT in series connection or two separate CTs.

1460

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why Induction Generators are not "Black start" ? and apart from WTGs where this types of generator are generally used?

2595

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how to identify conection leads of an unknown electric motor

2068

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How many devices can be connected in one zone of FACP

2271

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How to checked frequency drive output voltages?

1129

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Whether it is possible to measure energy at the input of rectifier transformer (12 pulse with very high odd harmonics)

1847

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I want the details about BHEL company examination.Can anyone able to help me please.

2005

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In India the supply voltage is 230 volt A.C. During the negative half cycle phase becomes neutral and neutral become phase? or what will happen during negative half cycle? how the electrons flow during positive and negative half cycle?

1937

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Who are the manufacturer for Nitrogen based Fire Protectio/explosion prevention for Oil Filled Transformers? India and international both?

1863

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how to calculate the formula of cable size if motor kw is given

2184

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