Answer Posted / a guru

The 3 phase delta/star 11,000/400 volt step down transformer has 40 turns per phase on primary. Find out the secondary turns.

HOW TO DESIGN THE body EARTH cable(Copper Conductor) size for 60KVA UPS?

1964

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What is meant by turbo alternators?

1162

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how to carry out Magnetizing Current Test on Distribution transformer and what purpose we are doing this test. why transformer rating in always in KVA ? what ispositive, negative, zero sequence impedence? How ElCB tripping if Neutral touch with ground Why AC & DC capacitor are use in UPS ? why motor rating in KW? how to syncronize two dg sets

2152

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we have a lot of model of rectifier but thyristor rectifier is the most rectifier that use in power system. Do you know why this rectifier is used?

1751

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What are hrc fuses and where it is used?

1149

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How to calculate phase to phase difference ?

2217

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i have 3500 amp load and select current transformer and perches.how i calculate .please understand

2141

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A car's starter motor draws a current of 100 A at 12,0 V when starting the engine. The mechanical power required to turn the engine is 960 W. At what rate is energy from the battery converted to non-mechanical forms of energy?

2128

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What is order of the system?

1090

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What is the effect of pi controller on the system performance?

1076

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What is the polarization index value ? (Pi value)and simple definition of polarization index ?

1169

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it is possible to rotate the DG engine dc starter with wrong polarity connections? why?

2223

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what is the mechanical safety of DG ?

2123

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I have 2500KVA transformer delta/star,13.8KV/380V provided with LV 4000A breaker. Already I have 2300KW motor feeder with a full load 90%. Is it possible to connect another 1600A from that breaker? If so how the calculation is done?

3782

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please send the IS strandard for electrical to sakthi_murugan86@yahoo.co.in

2235

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