Answer / kiran

if any machine tool is inefficient to work or consuming more
power,change it with energy efficient and economic tool in
technical aspects is known as retrofitting..........

I am designing new project sub station with 220 kV / 11 kV, 40 MVA capacity. This project have many recifier sets, which can generate 3rd harmonics. Now I have to select vector group of This transformer. To minimise 3rd harmonics, what care should I take in selection of Transformer Vecrtor group? If it is Y-Y with open Delta tertiary then what should be the rating & voltage of Tertiary Winding?

0 Answers  

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HOW TO CALCULATE BATTERY BACKUP TIME & AH CAPACITY AGAINST UPS KVA RATING?

2 Answers  

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why the transformer was not rotating like a motor?

5 Answers   TATA,

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why Induction Generators are not "Black start" ? and apart from WTGs where this types of generator are generally used?

0 Answers  

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Explain working of servo controlled voltage stabilizer.

3 Answers  

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Why 30°phase shift occur in star-delta transformer between primary and secondary?

1 Answers  

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how much earthings are provided for 22KV HT Metering Kiosk

1 Answers   GE, Gionee, Knight Frank, TATA, Vacmet,

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where HT & LT capacitor uses ?

2 Answers   NTPC,

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why the starting voltage drop in a cable needs to be limited?what is percentage of the voltage drop allowed during starting?

0 Answers  

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bit confused - am i correct in thinking that to determine line to line voltage in a star config 110v 3 phase 4 wire distribution system i would use a voltmeter? I have a circuit configured as an unbalanced load, consisting of three incandescent lamps (1x40w, 1x60w, 1x100w - all 110v rated)connected in a star configuration to a 110v 3 phase 4 wire distribution system. I want to find out what types of meters i would use to obtain: a) each line to line voltage b) the line to neutral voltage across each load c) current flowing in each line and load d) current flowing in the neutral conductor e) power supplied to the loads im assuming i would be using ammeters in series along each line and voltmeters in parallel across each line to neutral? Also how could i predict these meter readings before taking them and with which formulae? Any help would be greatly appreciated A.

1 Answers  

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What do you mean by Frame 5 Gas Turbine as well as Mark II.

0 Answers  

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What are the different types of trap used for Indian & western Toilets?

2 Answers  

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