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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How to test the vector groups of 3 winding transformer & phase displacements

2 Answers  

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I AM A ELECTRICAL PANEL BOARD DESIGN ENGINEER.IF I GO ANY INTERVIEW ,TECHNICALLY WHAT ARE QUESTIONS I WILL FACE FROM INTERVIEWER?

0 Answers   Bell,

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Can 60 Hz transformer be used inplace of 50 hz transfromer?

1 Answers  

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What is the basic difference among IPS,UPS,EPS?

2 Answers   ABB, Navana,

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Why SF6,VCB,Oil Ckt Breakers are use in HT Side need brief information ?

5 Answers   Shell,

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star delta starter contorl circuit... drawing..

0 Answers  

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what is surge impedence loading

2 Answers   NHPC,

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Why we use mostly circular coil in transformer? not square or rectangular type of coil.

4 Answers  

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what is the difference between AHU and FCU .

1 Answers   JLL,

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If current flows through conductor it produce magnetic field only.but if current flows through vaccum both magnetic & electrical field produce why ?

4 Answers   NTPC,

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What is the size of a 60 watt and 80 watt tubelight?

0 Answers  

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