WHAT SHOULD BE THE BEST CURRENT RATINGS (PRIMARY / SECONDARY)FOR A CT INSTALLED AT THE INCOMING 11KV PANE? WILL IT BE CALCULATED ON THE BASES OF MAXIMUM DEMANT VALUE OR ON SUM OF ALL TRANSFORMER'S KVA? NOMALLY MAX DEMAND REPRESENT THE MAXIMUM OPERATING LOAD OF THE PLANT AND TOTAL KVA OF (SAY 5 NUMBERS TRANSFORMERS) REPRESENT THE CONNECTED LOAD. WHICH i.e. MAX DEMAND KVA OR CONNECTED KVA ARE BETTER TO USE FOR CT CURRENT CALCULATION? PLEASE ANSWER.

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How to Calculate KA Rating of Main LT Panel

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how to calculate kvar in Akiva

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how to detect the presence of underground cable(while digging road)etc. -give the name of instrument

7 Answers   NTPC,

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In three phase energymeter the spindle rotating backward why?

1 Answers  

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what types of electrical & mechanical test conducted in switchyard?

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star delta connection used in reduce the starting current at 3 times . how its reduce the current please explian .

7 Answers   HP,

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what is the iron loss in a 11KV/440V transformer?

2 Answers   Bhel, TVS,

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define IDMT relay?

15 Answers   APGenco, Bhel, L&T, Shriram Finance,

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what is vibration?

2 Answers  

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What is the accepted limit to increase the choosen transformer capacity over the load and why ?

1 Answers  

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ELECTRICAL DRIVES: can a motor load system with passive load torque can have equilibrium speed in second quadrant

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