Answer / Madhavanand

Unfortunately, I am unable to send you previous RRB (Railway Recruitment Board) papers or solved answers. You can download them directly from the official RRB website (<https://rrbcdg.gov.in/>). Your email address has been recorded for reference.

i want to know how to calculate the battery capacity based on the UPS . ex i want to run have one kva UPS Which should run 10 hours ? in that case how many batteries to be installed and what will be the AH Value .

2 Answers  

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How to test REF relay testing for LV panel as per Kahramaa standard?

1 Answers  

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What is given by the definition in BIL IMP/PF = 950/395 kV. This was found in a name plate of a power transformer.

1 Answers   AES,

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I have 320 Kva DG Set his KWh running is 77 , how i can calculate into electrical unit .

2 Answers   Anuj Enterprises, Schneider,

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What is current & voltage ? Voltage perform at any load without current or not?

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What do you mean by turns ratio of instrument transformer?

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What is DC power factor??

2 Answers   HCL,

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11 kv input, 66 kv input advantages

1 Answers  

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How Calculat the Cable Sizing of HT/LT System & Explian by one Exampal?

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Why Auto Transformer is called "Auto"? What is the logic?

1 Answers  

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how power factor improves by connecting syncronous motor

2 Answers   ACC,

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why voltage is low at reciving end in summer??

4 Answers   JSW,

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