why is one voltage transformers (instead of three ) installed at the entrence of the incoming line in a substation.

2 Answers  

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What type of tranformer generaly at soft wares like capacity 2000 kva 1800 kva etc iam confused it CT or PT OR distribution tranformer

3 Answers  

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write down the formula of cable size in RM if current is 50Amp.

0 Answers  

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if 11 lead acid batteries each 200 amph are connected in series so that combinly they can produce 110 volts dc. question is how much backup it can provide ? 2) how can we calculate that how much amprere and voltage is required to charge them . thanks in advance !

1 Answers  

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why current transformer secondary side should be shorted ?

5 Answers   Areva,

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after parallaing two generators current is shooting up in both the generators.for ex: load is 400 kw..after paralling and load sharing current in running gen is approx 900 amps and incoming is 750 amps which is too high when trying toshift the load current in incoming gen is coming more than 1300 amps and both getting tripped and making blackout..

3 Answers  

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what is the terminal voltage of dc series generator running at rated speed at no load?

2 Answers  

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what is anti-pumping relay and the significance of it in a switcgear cb control system?

1 Answers  

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Why infinite busbar has zero resistance and high mechanical inertia?

1 Answers  

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STATE AND EXPLAIN SUPER POSITION THEOREM.

3 Answers   ABB,

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1. What is maximum permissible distance between smoke detectors ? 2. How do we decide number of smoke detectors required in a large office, warehouse, hall etc ? 3. What should be maximum height of smoke detectors ? 4. Where do we use heat detector, optical smoke detector, temperature sensitive detector ?

0 Answers  

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why celing fan is running in anti clock wise and table fan is running in clock wised?

5 Answers  

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