Answer Posted / vijay

38.4mins backup time

work of choke in florocent tube circuit ?

2140

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Why different Pressure switch used in marine boiler water circulation system

1770

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hi, could someone help me to find a control design for syncronising panel .

1729

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I need HT sphere gap calibration table. Can any body help me.

1950

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sir, 3phase induction motor takes different pf and different KW in three phase while running,explain reason

1482

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What is notching in dc machine?

2003

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what is the difference b/w ground & virtual ground?

2317

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i m doing DEEE in part time,can i join regular cources in BE,,IF i join what the cources can i select like (civil,ece,IT) ,,kindly advice

2120

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What are the types of excitation system?

2039

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IN induction motor pf is increased using capacitors.what will be the effect on motor and system when very large capacitor is accidently installed and pf goes leading.

2152

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WHAT IS MEANT BY TV TERMINAL IN 500MVA TRANSFORMER?

2290

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I have 4 busbar of 1000 ampere. we use 4 busbar to make 4000 ampere in one phase.my problem is that when we applied 60% load on that then busbar produced high noise.what is the reason of that and how can i minimize that noise.

1714

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given data are load current & power factor cable core size? plz any one update the calculation formula

1902

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What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side

1465

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How many types of instrument cables are there?

1100

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