how to estimate wiring ins roughing ins. and boxes

0 Answers  

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I have a shop heater with a 1/3 hp capacitor start, induction motor driving the fan. Intermittently, the fan motor speeds up significantly for several seconds (15-60 sec) then slows to normal operating speed. The manufacturer suggested changing the capacitor which made no sense, but I did it to no avail. Could this possibly be caused by the centrifugal switch intermittently reconnecting the start winding?

1 Answers  

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what is VFD and where is use of it

5 Answers  

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why high speed tripping relay is used in protection circuit why not normal relay

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dear all, i want to ask that what is diversity factor. please explain breifly. because i hve quiet no concept about this.

2 Answers  

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which motor will u use in refinaries?

1 Answers   IOCL,

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What are RMU yard Safety Operating Procedures

2 Answers  

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What is the phase relationship between the primary and secondary voltages of a transformer?

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what is the purpose for open delta connection in potential transformer

2 Answers  

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why abcd parameters are called as transmission parameter?

1 Answers   Accenture,

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wat is the difference between real power and reactive power..which is useful..?and how it s useful..wat is the effect of these on a power system...

10 Answers   ABB,

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What are the usege & different between UPS & batteries with charging system in in Substation?( UPS 120V AC & battery charger is 120v DC)

1 Answers  

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