We have 750KVA DG set, we want to introduce REF relay with 1250/1A,CL PS,Current transformers.The lead distance of 2.5mm copper flexible cable from CT to relay is around 5mtrs.We would like to know the knee point votage(VK) & IM calculion for CT's

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what is the difference between Ith & Iu rating in MCCB. Particularly on SACE ABB Circuit Breaker?

2 Answers   Siemens,

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In siemens S7-300 PLC, what is function and function block ? What is the difference between them ? When to use function and when to use function block ?

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How do you select a cable size(Cu & Al) for a particular load?

2 Answers  

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What is tranformer differtial?

0 Answers  

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why generally transformer are in star to delta or delta to star used?

8 Answers   ABB,

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how did the testing of protection relays done through current injection

0 Answers   Bhel,

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TRANSFORMERS WITH DC SUPPLY

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1.How to calculate backup time from series connected battery of 12v dc with 26Ah for 2battery?

3 Answers  

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Wht ar the reason for low voltage on consumer side?

6 Answers  

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how we can check new PT ? without name plate.

1 Answers   Indo Power Projects,

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Latching current is slightly less than ?

2 Answers  

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