I have been using an 600VA with 0.6 p.f UPS with my desktop which has 450W power supply unit. Can anyone explain how can this happen . Because the output of the UPS is 360W (600*0.6) (<450W)

0 Answers  

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how to select electrical equipment such as fuse,dg,transformer,motor,msb,wire,cable as per the connecting load..please mention any books to design,take licence

0 Answers   Gujarat Electricity Board,

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Why we have short circuit the secondary of the transformer

1 Answers  

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Hi Recently I got one formula that is Impedence of Xformer = Rated KVA/Root 3 * secondry voltage OF Xformer. Is it Right??????

2 Answers  

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what is a 3 phase power formula ?

5 Answers  

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what is the CT of protection and CT of metering ? what is class 5P10 & 5P20 and class PS ?

16 Answers   JEE Main, ONGC, VRA,

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As the one point of eac phase winding is connected to each other in satr connction. Even if that at distribution side collesion of two diff phases result in to blast. Why?

1 Answers  

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they conducted technica for 1 hour..i also managed..they selected 5 boys and only one girl,myself got wait listed.whether they would call or not

2 Answers   MAHINDRA,

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why we do 2 types of earthing on tranformer ie:body earthing & nutral earthing , what is function. i am going to instal a 5oo kva tranformer & 380 kva DG set what should the earthing value

8 Answers   Altrion Technologies,

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will the introduction of capacitor bank parallel with the induction load reduce power consumption

4 Answers   Nokia, WAPDA Water and Power Development Authority,

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Why most of analog o/p devices having o/p range 4 to 20 mA and not 0 to 20 mA ?

2 Answers  

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How do you reset circuit breaker?

1 Answers   Bhel, Kaveri Steels,

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