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Electrical Riddle No.52 - Power factor of home/telephone appliances
Can you give average values of power factor of appliances like incandescent,CFL , mercury vapour and other types of lamps and appliances like radio,TV,mixer/grinder, microwave oven,ceiling fan,fax,photocopier,computer,desk calculator,hair drier etc?
Please give average values of power factor for various kinds of lights(incandescent,CFL,LFL, mercury vapour,sodium vapour,MH,induction etc).home appliances like radio, TV,mixer/grinder, shaver/   hair drier,fan,microwave,refrigerator etc,office equipments like computer,fax machine,copier,air conditioner,etc and workshop equipments like drill machine,grinder,arc welder,power saw etc although it will vary from manufacture to manufacture and model to model.
Author : Sinnadurai Sripadmanaban - From: Srilanka
Mon, March 28th, 2011 - 13:17
The typical values of capacitor units used in some lamp circuits for power factor correction are summarized in Table below.

The typical home power factor is from 87% to 99% on average.
Typical Power Factor Ratios for some area is :

Chemical Plant                          %70
Commercial Building                  %88
Foundry                                       %80
Furnace or Oven Operation        %75
General Light Manufacturer         %80
Job Shop/Metal Fabricator            %70
Plastic Injection Plant                    %70
Printing Plant                                 %70
School Building                            %85
Author : Hamid - From: Iran
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