I have 1 KW, 3ph. 440v, 50 hz, cos(phi) .75, efficiency 75%(star delta connection)Motor. How to calculate line current & Phase current (1) Star connection (2) delta Connection

2 Answers  

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how can we calculate the ampacity of the electrical wire/cable. and what are the factors must be considered. pls. elaborate.

0 Answers   Webel,

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what isthe emf eqation of a transformer

7 Answers  

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what modulation is used in landline telephone signals?

2 Answers  

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Sir, I have applied for the of Assistant.engineer of NPDCL. please send me all AP TRANSCO AND JENCO solved papers of previous exams . I requested send me the papers to my id as soon as possible (rajanikanth_peddi@yahoo.co.in) (This is very urgent) Thank You,

0 Answers   APTransco,

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Between Turbo alternator and Hydro alternator which one is more difficult to cool and why?

2 Answers  

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What is the resistance to be connected for supplying the load of 20mV,1kohm from 20mV supply using rectifier.

1 Answers   Anna University,

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how we calculate torque ? how we improve it ?where torque will either motor or generator ?

0 Answers   Reliance,

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why rating of generator is kva but motor is kw ?

4 Answers  

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Advantages of short circuit and open circuit tests of a transformer?

3 Answers   Engineering,

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how much current take 16sq mm Cable

2 Answers  

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Why power factor should not be in leading (capacitive) mode of any load.

3 Answers   GE,

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