Answer / shri...

Connected load = 3 Fan (70 watt each approx) + 3 Tube lights (40 Watt each approx)
Load = 330 Watt
Battery back up time 3 Hrs

Required minimum 12V 1 no 120 AH battery

What is the practical way to calculate the cable size for known ampere load?

0 Answers  

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we have a 2000kva step down transformer at our site. The HT side is charged from 22000V. So the primary current will be 52.48A. So why the HT breaker(SF6 ABB) is rated of 1250Amps ?

2 Answers  

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What is distance protection relay? where & why we use this relay?

2 Answers   Siemens, UltraTech, Voltech,

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1.why are not using acb 33kv ht side? is there any problem 2.what is difference between acb,vcb,sf6 breackers? 3.what is the function of invertor and convertor in ups?

0 Answers   L&T,

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What is step signal?

0 Answers  

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how will calculate the winding ohmic value in 3phase motors in h.p wise? ex.10 h.p motor winding value ph to ph ? 5 h.p motor any calculation please send me.

1 Answers   Hyundai,

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Q2). When 3 dice are simultaneously thrown, which of the following would be obtained? (a) Result 1: “A 5, a 3 and a 6” (b) Result 2:” A 5 three times” (c) Result 3:”A 5 twice and a 3” (d) All three results are equally likely. (Musigma Question)

2 Answers   Mu Sigma,

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What is the difference between a 3 winding and 2 winding Potential Transformer

0 Answers   Engineers India,

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why the power cut problems occur in tamil nadu? may i know the exact reason.plz

17 Answers  

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Explain the construction of the conservator, operation and purpose, and draw the diagram of the conservator.

0 Answers   Siemens,

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what is the relation between KVAR,KVA,KW?why we are mentioning capcitor rating in kvar?what is meant by arcing horn and horn gap in transformer?what is equipotential wire?

1 Answers  

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why lightning arrestor are made by 2 stack of insulator but why cvt are fully 1 stack of insulator.

1 Answers  

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