Answer Posted / vinod kumar

CFL bulbs have an electronic circuit in the base of the bulb. This electronic circuit is called an electronic ballast. There is an electronic oscillator and a minature transformer that produces high voltage enough to ionize the gas in the tube, initially.

PL tubes are simply connected to the pins at the base. External ballasts must be used to supply the high voltage necessary to start the lamps.

In the formula : Knee point voltage = Burden X alf / class, Please inform what is alf? regards Shashidhar M.R.

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what things to be considered when designing UPS

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3- What is the target from Zero Impedance, Single Phase Imp., S/C Imp. and magnetic balance tests?

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What is the voltage gain or transfer function of amplifier?

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if we have 320KVA Genset kindly advice how much load we can put it.

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what is mean by Digital Logic Meter (DLM)

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what is the method of earthing of a transformer using electrodes?

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What is transister define the transister ammiter ,base, colector.

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hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible

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What should be the magnetic balance test values for a 3 phase delta/star connected single primary dual secondary winding transformer (90 MVA / 2 X 45 MVA TRANSFORMER)

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what is the minimum winding resistance of 30hp compressor, to run or to switch on

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What kind of Neutral CT can be placed in 11/0.433KV transformer to be used and what are its specification?

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why to use freewheeling diode ( diode in revers bias mode) across dc coil

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I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

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WHAT IS MOBILE SUB-STATION? & REALLY BENEFIT IN INDIA

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