how to read idmt curva

0 Answers  

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Why Lighting transformers are used? what will be the current if lightings connected through direct raw power?

1 Answers   BMM,

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what is different between IP55,IP54 and IP66?

2 Answers   ABB, Global Industries,

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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 hazordious area is classified at an oil & gas plant and categorise suitable class of electric equipment in that area like induction motors, LCS, Lighting Fixtures Fluerescent/Flood lights Mercury& sodium lights, J.Bs, Power Cables etc

0 Answers  

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What is the importance of counter based plan & how is it scheduled?

0 Answers   TATA,

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what is the diff. btwn. electronic regulator and ordinary rheostat regulator for fans?

3 Answers  

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differance b|w ground, neutral&earth

11 Answers   Bhel, SKH Metals,

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what is the frequency of direct current(dc)?

12 Answers   Cognizant, University,

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how to minimize earth resistance upto 2&#937;, if the resistance is 6 &#937; ?

0 Answers  

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What is the Difference Between choke & ballast

3 Answers   ABB, ICS Integrated Computer Solutions,

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Why does capacitor block dc supply?

5 Answers   Bhel,

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