how we can find out the speed of fan without using any measuring instrument

2 Answers  

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Hi, We facing one similar problem in our computers i.e we are newly constructed our design department after that shifted our computers but our computer desktop screen is vibrating. we are conducted our electrical maintainance person he told that is UPS problem, then we changed the UPS also again we are facing that problem in that room only. then we put lcd monitors that problem is solved. But in other monitors why the computer desktop screen is vibrating please give a suggestion to me. Regards, Raju.N.G

10 Answers  

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What is the main difference b/t Earth leakage relay & Earth fault relay.I want protect my LT panel(Distribution Panels)which relay have to propose.......

1 Answers  

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what is mcb

7 Answers   L&T,

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what is multiplying factor of a energy meter connected with a CT ratio of 600/5 and voltage at 415 volts.

1 Answers  

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What is substation?

5 Answers   KSEB, Neolite,

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What is the purpose of SSVW, IOVW, DVDF Tests in transformer? Those who are answering, pls send mail ids also.

1 Answers  

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What is diversity factor in electric installations?

0 Answers  

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what is the diffrence between dol and star delta strater? why star delta starter used instead of dol?

3 Answers  

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what is reverse power relay brief explanation and in b/w where it is connected

0 Answers  

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What is the difference between generator and turbo-generator

5 Answers   iGate,

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What are the various types of BUSBAR Schemes? explain each

1 Answers   NTPC,

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