Answer Posted / gunasekaran

if it is 5P20 we can calculate from following formula
1.2*VA*ALF/rated secondary current.
magnetizing current it will be mA it may be .5 or .7 of current

Draw the vector diagram and condition for the following: 1) Dyn1 2) Ynd0 3) YnYn0

3611

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Pls tell me whether we can use EN3A material for shafts of Permanent magnet alternator.What will be the effect of magnetic and nonmagnetic material for shafts on magnetic properties of PM rotor .

3444

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what is errection pcbs?

1866

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How RTCC panel is working and give single line diagram for RTCC with transformer?

3034

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My question is abt backlog.I had dropped one subject in my second year, and completed this subject in the 3rd attempt, so how many backlogs i have got?1 or 3?plz sujjest the answer as soon as possible

2044

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3 shows a 415 V, 3-phase generator supplying a 3-phase 415/110 V transformer. Draw the individual and combined impedance diagrams to a base of 10 kVA. Determine the system fault kVA and the fault currents at the 415 V and 110 V busbars for short circuit faults on the transformer input or output terminals. Work in p.u. values of impedances.

2606

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What is a signal flow graph?

1016

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pls tell me about ups internal connection & we have given only 3 phase supply to ups system how get 4 wire (R Y B N )

2693

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I Have 3 Phase 10 KW AC Alternator i found one phase weak, so what will be the reason & what action shouls i take to rectify the same.

1997

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If o/p power is doubled by how much does the sound increase

1030

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What are the parts in a inverter?

2026

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Why choke coil is connected in series with starter in tubelight??why starter is connected in parallel to tubelight??

3315

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Starting Time of LT & HT Motor

1880

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Following test should be conducted to find out relative polarity of transformenr terminals A no load test B back to back test C phasing out test D none of above

2162

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advantages and disadvantages of inverse definite minimum time RELAY

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