why the CT ratio secondary is always divided by 5 for eg( 75/5,80/5,50/5)

6 Answers  

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Whai isPCC and MCC Difference?

1 Answers   Pretech Plast,

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What difference between voltage and current

5 Answers  

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An 11kv system consisting of an underground cable to a sub station about 300 meters away was shut down for about 10 hrs. On energising, it tripped off on earth fault about 10---20 mins later 6 times but since than it is not tripping.its already 3 weeks now. The SPAJ was found to be fine. what could be the cause.No test had been done to determine the cause of the trippings till now because of demand.

2 Answers  

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can we run all LT motors at 360 volts which are normally rated 415+/-10% voltage rating

2 Answers   Meinhardt,

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HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT-SWITCH BOARD,MLDB,ACB,BUSBAR,ETC,......?

0 Answers  

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What are the role of each components in PID COntroller

1 Answers   BARC,

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A 12.5 hp slip ring motor taking high initial current and its MPCB is getting open.what may be the reason?

3 Answers  

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why power is generatd at 50 hz only..? can we do this on another freq...?

7 Answers  

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Hi,, Just I want ask, if the power factor decrease what happen in voltage regulation? Thanks..

1 Answers  

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May I know how much values to be set for earth fault, over current and short circuit values at 11kv side? I have 11kv van 1250amps rating. Present it's taking load 80amps?

0 Answers  

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What is power distribution criteria for converting single phase unbalanced residential load to 3 phase star connected balance system. Does total KW converted to 3 Phase. Means Divided by root 3.

0 Answers  

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