Dear Respected sir how to test ABB REX521 protection relay by relay tester.

0 Answers  

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When calculation of fault current and fault Kva is to be done,why always we use per unit value and why we consider the base kva?

0 Answers  

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What is the formula to calculate the rating of a three phase trnasformer

1 Answers  

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which type of cabel

0 Answers   DMRC,

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can we use only a isolator in the subtation..

1 Answers   ABB,

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what are the analog quality input for protection function?what are minimum reqiments?

0 Answers  

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what is slip ring startor

1 Answers  

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Find defination of KVA convert in to KW.

4 Answers   ABB,

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Hi, This is Laila. I am selected for syndicate bank interview. Could you please share your views and the questions asked if you have faced the interview My email id is laila_honey09@yahoo.com Please send as fast as u can.Thank You Thanks... Laila.

0 Answers   RRB,

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Why CT secondary should not left open??????????

2 Answers  

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A three phase transformer 460v primary 220v secondary (three phase four wire system.) Why did we get 460 volts across the neutral on the secondary side?

3 Answers  

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how can we check a fully charged battery?

6 Answers   BEML, Singareni Collieries,

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