transformer test

4 Answers  

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calotropis is an example of the following phyllotaxy

1 Answers   APGenco,

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1.After synchronising the alternator to the grid,how we r delivering power to the grid?if the i/p increases does the speed hence frequency increases? 2.y the power factor is changing when exitation changes?what is the relation with p.f and flux?

4 Answers   BSNL,

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my first school?

1 Answers  

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What is the size of electrical cable to be used for a space heater single phase 240V ?

3 Answers  

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can you plz send l&t aptitude questions if available its urgent plz plz plz

0 Answers   HPCL,

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why not phase to phase fault occure in raining day in hv sub-station?

1 Answers   Getco,

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What is the application of Dyn1 and Dyn11 vector group of transformer?

0 Answers  

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hoe to test voltage restrained overcurrent relay?

2 Answers  

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I HAVE A 50A MCCB AS PER DESIGN LINE WIRE CONNECT UPWORD SIDE AND LOAD IS CONNECTED TO DOWNWARD SIDE TO THE MCCB.IF NOW ANY ONE CHANGE SUPPLY & LOAD(WISEVERSA) WHAT HAPPENS ? DOES MCCB OPERATION OR WORKING FUNCTION NORMAL IF YES THAN WHY THERE ARE MARKED LINE & LOAD ON MCCB.

0 Answers   HCL, TCS,

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i heard that power factor(PF) is the main concern for industries, if they are maintaining PF around 0.6 they will be fined for that. now the question is, how can they improve the PF ranging between 0.9 to 0.95 which is safe for them i,e escaping from the fine?

5 Answers  

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What is the electrical difference between Earthing Switch (ES) and Maintenance Earthing Switch (MES)?

1 Answers  

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