1.what type of wave is produced from i.online ups ii.offline ups iii.inverter.why don't we use inverter instant of offline ups for computer,what's the reason?

2 Answers  

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what is the form factor of DC?

6 Answers  

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when i am going to take trail on a 3ph sq.i/m motor 5.5kw, i observed that RPM of the motor is very low as compared to the rated RPM and also it rotates in clockwise in first ON command,and anticlock wise in second ON command. finally i observed that on phase is no available . but iam not clear about, why the motor is rotates in both directions without any phase interchanging.pls answer to my question.

1 Answers  

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How to know Resistance and Reactance value of main and aux winding of single phase capacitor start capacitor run induction motor to find capacitor value?

0 Answers   Siemens,

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Why does the Solid state Rectifiers for 3-ph brake motors sometimes have 2 & sometimes 3 output terminals?

0 Answers  

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In a large office how do we calculate required number of light fittings, assuming fittings are 4x18W or 2x36W fluorescent fitting ?

0 Answers  

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How to measure the earth resistance value in a concrete pavement(flood light area)?

0 Answers   ANZ, Watt,

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dear friends, how to calculate "Gage" in copper wire , aluminum wire etc. have any formula?

1 Answers  

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What is mean 2XWY

0 Answers   Wilo,

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Why Earth pits are inter connected

8 Answers   Airtel, Taj Group,

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How addressable fire systems work? Pl. send details with architect.(Loop), also send details regarding Gas system. Pl. help me.Thanks

1 Answers   Siemens,

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I am working in transmission network, one of my 66kv line having short distance about 6km, when sending end voltage is 67kv receiving end get 69kv, i want to know that, does distance affects in this matter, please explain in this matter & if possible answer me on my mail id, kaushikkumar.vanavi@getcogujarat.com, kaushik.vanavi@gmail.com

5 Answers  

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