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?
i have seen one 8.4 MW synchronous motor in a plant located in bellary it is fixed with brushless rotary rectifier ,anybody can explain its start up principle
What is the basic principal, by which DC voltage level is increased more than the supplied AC voltage during conversion. As upto AC level it is contorrled by firing anlge but after maximum level how is it possible.Please clear picture. OR we have to supply the higher level AC?
how to define vector group of transformer
1 Answers Engro, Reliance, TATA,
sugest any typical project ?
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