Answer Posted / dheeraj

It is a standard

I have been using an 600VA with 0.6 p.f UPS with my desktop which has 450W power supply unit. Can anyone explain how can this happen . Because the output of the UPS is 360W (600*0.6) (<450W)

2130

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What do you mean by a phase angel of instrument transformer?

1102

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whether fibre optic cable in high voltage earth conductor is used for protection circuits

1610

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why do we put a transformer on soak before loading it

1138

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What is electrical grounding?

1159

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what is the prinsiple of dc motor and construction and working ,application of dc motor.

1955

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3Cx240 & 3Cx300 sqmm Al. cable from lv side. What is the calculation for this cable??

1394

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Why space heater is required for each verical bus bar chamber? if one space heater is adequate or not for anti condensation?

2524

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What is evaporator & condencer & compressor

2157

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When are the directional relays used?

1049

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According to IEC60034-14, When the vibration monitoring system required for motor Bearing. above which KW, it is required? and for what type of bearing the vibration probe is provided.

4166

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how we do Vector group ,magnetic balance and tap changer test in Transformer?

2464

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We have received supplies of the ordered material. payments against the supplies also released. Where ST paid 4% against form C. Meanwhile it has been observed that 25% of material supplied was defective. Please suggest whether the issuance of C form from our side would be stopped till settlement of liabilities.

1949

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what is deffrence between squirral cage and wound rotor in IM?

1963

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if any body have question paper of railway (section engineering),then plz send me .i will thank of him/her.

1988

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