When do you use a VFD motor?

1 Answers  

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What is the difference between KW & KVA ?

9 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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In DC generator, we use commutator, having no. of segments. Then how it is possible to get a half wave of voltage and current for half rotation of armature?

0 Answers  

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What is resistance reading of earth copper rod with grid and without grid?

0 Answers  

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in case dc we mark as + ve & -ve..but in case a.c. we mark as ph&N...Y LIKE PLZ TELL ME

4 Answers   NPTC, TCS,

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what is tandem isolator ??????????

5 Answers  

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what is the full form of ka (100A mccb KA)

1 Answers  

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How to generate neutral in DG set?

3 Answers  

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what is the use of the puls transformer in UPS & how it works???????????

0 Answers  

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What are two contours of nichols chart?

0 Answers  

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Sir 33kva 2 transformer load 900 amp calc 1800 amp mana jayega

0 Answers   Classic Infotech,

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