Answer / sunil pargania

inverter convert DC in to AC, but not pure AC some DC
component remain left in inverter's output volt. so due to
this DC component fan give the noise.

Answer / raxit

Inverter output contains harmonics and THD of inverter is also high that detract motor performance.

Answer / vinodkumarkkp

When dc to ac is converted , it is 12 v ac and t/f step up and due to this t/f does not step upto 220 v ,i.e. Nearby 220 v it is stepped up . But fans are not working properly below 220 volts a.c. I think this is also a reason.

Answer / abhishek singh

capacitor ckts are present in invertours which converts dc
to ac current because capacitor does not passes dc
current.but all dc current are not able to filtered
through inverter some remains present in the current which
causes a sound in fan.

Answer / dhaval

when we connect a celling fan with jenreter then pure
voltage like 240v is not provided fan even thogh it produse
some noise

What is the use of insulation tester and how it is to be used.

2 Answers  

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33kv Rated output avilable in market (any where in india)

0 Answers   C2C,

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1 Answers  

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Ohms law explain

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HOW VFD USED IN ENERGY SAVING

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Which type of transformer used in lighting load?

2 Answers   IMFA,

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In track electrification Either we use single conductor or double conductor? why?

2 Answers  

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How to PLC give the command to electrical

1 Answers  

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what happens when back feeding supply accidently collapses with normal supply ??? How?? [that is sometimes in a substation 11kv feeder if their ws long time permit work, back feeding supply will provide from nearest substation... if accidently after the permit work,they charged the feeder without removing back feeding wat will happen...?]

1 Answers   KSEB,

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for a slip ring induction motor if the stator is short circuited and rotor is given supply? how does the rotor rotate?

1 Answers   TNEB Tamil Nadu Electricity Board,

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