WHEN SINGLE PHASE SUPPLY AS 220V, WHY THE 3 PHASE- 4 WIRE MEASURED AS 440 VOLTS INSTEAD OF 660 VOLTS (220 VOLTS PER PHASE i.e 220x3 = 660 volts ).

1 Answers  

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Why converter duty transformer neutrals are not earthed...i am still not sure if this question is also correct...Please email at ranjan120482@gmail.com

0 Answers  

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Capacitor bank require for 1000amp load

2 Answers   Biodeal, Pharmaceutical,

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1. If we apply dc supply to the primary winding of transformer it will be burnt out. similarly dc supply is given to field winding of syn. motor and armature winding of dc motor, they are safe. (Remember both windings inductive nature) what is the reason behind that?

2 Answers  

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Explain types soft starters?

7 Answers   Siemens, TCS,

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plz tell me,ht and lt panel terminals in substations explain beiefly

0 Answers   APCPDCL,

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how to calculate a cable size while load is given in amp or kw and length is also define.?

1 Answers  

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what is the difference between scaler and vector control in drive and where it is to be used ?

1 Answers   Essar, TCS,

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how much Amp we can put in 1200kva generator?

11 Answers   MacLellan,

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they conducted technica for 1 hour..i also managed..they selected 5 boys and only one girl,myself got wait listed.whether they would call or not

2 Answers   MAHINDRA,

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what are the values to be accepted on 3 core 185sq mm for 11000volts on insulation resistance between conductors and between conductors and earthed?

3 Answers  

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what should be distance between two electrical earthing pit as per i.e.e

13 Answers   Badve,

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