Why we Stopped Using Bulbs Even It Provides Almost Unity Power Factor ??

Why we Stopped Using Bulbs Even It Provides Almost Unity Power Factor ??

Naman Agarwal

Member

Updated: Oct 26, 2024

Views: 2.8K

Why we Stopped Using Bulbs Even It Provides Almost Unity Power Factor Which Is Always desired??

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Jeffrey Arulraj

Member • Mar 11, 2013

We preferred all the colours of the light spectrum instead of a single monochromatic light from Bulbs

That i why we avoided them. Their power factor is super cool But the power consumed By them to produce the same intensity of light is super high You must be aware of that

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mallumatmari

Member • Mar 11, 2013

Usually cfl bulb come with 15w or 30w power rating. And power factor of cfl is greater than 0.65. For 220v I(max current) of 30w is nearly 0.19A(using P=VIcos#) and that of simple bulb (60w) is 0.2727A. I(max) of 15w cfl is nearly 0.1A. Cfl also include 1500 to 3000 K resistance(I saw in website not quite sure)
Therefore we use cfl.

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Anand Tamariya

Member • Mar 11, 2013

Unity power factor is desirable for distribution systems. Efficient lighting (more luminosity/watt) is desirable for light source. Hence, move to CFL and now LED. Keep in mind PFC circuits can be used to maintain unity power factor rather than maintaining pure resistive loads in the circuit.

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Naman Agarwal

Member • Mar 12, 2013

Anand Tamariya
Unity power factor is desirable for distribution systems. Efficient lighting (more luminosity/watt) is desirable for light source. Hence, move to CFL and now LED. Keep in mind PFC circuits can be used to maintain unity power factor rather than maintaining pure resistive loads in the circuit.
We Want Unity Power Factor everywhere...If U Are Using Appliances having Too Low Power factor Then You Will Be Penaltised By The Supplier

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mallumatmari

Member • Mar 12, 2013

15w CFL will produce same light energy as 60w bulb.. 15w+penality will be less than energy consumed by 60w.

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Jeffrey Arulraj

Member • Mar 12, 2013

naman2511
We Want Unity Power Factor everywhere...If U Are Using Appliances having Too Low Power factor Then You Will Be Penaltised By The Supplier
Valuable point As others have said the total power consumed by the CFL with all penalities is lesser than that of Light bulbs so we avoid them now

I am not wrong these power factor differences tend to unity for a household so the net power factor delivered to a house is always unity This is all thanks to 3 Phase supplies Where the loads are distributed efficiently

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