why the current is denoted by the letter 'i'

1 Answers  

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why battery room in substation is black coloured?

4 Answers  

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why +24 v and -48 v give to BTS? If -48v protect from surge then why we not use -24 v?

0 Answers  

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What are the difference between C-Curve and D-Curve for MCB's.

17 Answers   ABB, DLF, Essar, GK companies, Nissi Engineering Solution,

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I have a 5KVA UPS. Total load to be connected almost 3KW. Ordering a battery pack with capacity of 1920VAh. How long will the backup time be?

1 Answers  

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why grid failure happens?

1 Answers  

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minimum ohm for lighting minimum ohm for Earthing

3 Answers  

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what is the meaning of transformer short circuit test?

7 Answers   HZL, L&T,

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How to take the Vector Group Test in Transformer? What is the purpose of doing Vector Group Test?

3 Answers  

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what is the main difference between simplex RTD and Duplex RTD?

6 Answers  

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why ELCB can't work if N input of ELCB do not connect to ground?

5 Answers  

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Hello everyone, somebody knows what is a "surplice power" ? The hole phrase is: "This rating is appropriate for a generator set paralleled with an infinite bus e.g. a national electrical supply network or grid where the generator set is run at 100% load, 24 hours a day, 365 days a year and any surplice power is exported into the grid" Thanks in advance.

0 Answers  

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