Answer Posted / umesh

Vector group is dittermind difination of transformer primery and secondry winding

what is rocking arrangement in arc heating

2138

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What is the function of a neutral reactor.

1870

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WHY EXCITER PHASE SEQUENCE ARE OPPOSITE THAN STATOR SUPPLY PHASE SEQUENCE IN SYNCHRONOUS MOTOR >

1912

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Igfet is a

1644

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there is an alternator 480 k.w, 400v,50hz, 4-wire running on load having leakage alternator body earthed current 38 A. is it within acceptable limit? if yes then give reference if no then how to bring within specified limit

1936

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Can you used moeller lzm1 mccb in a dc system with 125vdc and 20ka short circuit current , beside is it have 24 or 48 volt shunt ? Beside how long current can through from An MCB shunt contacts? (like Z7-AS 24 V)?

2089

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how wecalculate breaking capcity of acb mcb mccb .explain with example

1945

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Q.1:What protection will be used on HT and LT side of 33/0.4 KV, MVA transformer. Indicate capacities of protective device to be used. Q.2:Which types of back-up protections are used in the power transformers? What do you understand by the term over travel in the relay? Q.3:How star and delta connected winding transformer are provided from earth fault

2131

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how maney type tempereture measurement ?

2260

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What is the difference between the impedance percent and impedance voltage ?

2215

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What is the use of iron core in a transformer?

1140

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What is the effect on Power factor and capacitor when your company load is more than 70 % of welding transformer

1821

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The gauge indicates the number of amps, but what about voltage? How voltage rating (for wire or fuse) determined?

1983

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The efficiency of a 100kva transformer is 0.98 at full load as well as half load , for this transformer what is the Copper loss at full load ?

2337

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is it true there's a big difference in using Cummins or Denyo...especially power output or leakage

1941

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