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  Power Consumption Caluculator  
 
Appliance Rated Watts Rated kVA Rated kVA

(appliances) (generator to operate appliance) (generator to start appliance)
Air Conditioner
(Evaporative model)
275-1000 0.34-1.25 1.36-5
Air Conditioner
(Reverse cycle)
200-2500 0.25-3.13 1-12.5
Clothes Dryer 2400 3 3
Coffee Percolator 550 0.69 0.69
Can Opener 100 0.13 0.52
Deep Freezer 500 0.63 2.52
Disposal Unit 650 0.81 3.24
Dishwasher 1000-3000 1.25-3.75 1.25-3.75
Domestic Water Pumps 275-1000 0.34-1.25 1.36-5
Exhaust Fan 40 0.05 0.2
Food Processor 500 0.63 2.52
Floor Polisher 350 0.44 1.76
Frypan 1400 1.75 1.75
Hair Dryer 1500 1.88 1.88
Hotwater Service 2500-3000 3.13-3.75 3-13-3.75
Iron 800-1500 1-1.88 1-1.88
Kettle or jug 1600-3000 2-3.75 2-3.75
Lights 25-200 0.03-0.25 0.03-0.25
Microwave 1500 1.88 1.88
Oven 4000-8000 5-10 5-10
Radio 60 0.08 0.08
Radiator 1000-2500 1.25-3.13 115-3.13
Refrigerator (home) 300 0.38 1.52
Sewing Machine 60 0.08 0.32
Space Heater 2000 2-5 2.5
Television 75-200 0.09-0.25 0.09-0.25
Toaster 250-1250 0.3-1.56 0.3-1.56
Washing Machine 500-3000 0.63-3.75 2.52-15
Welder 140A 5000 6.25 8 min

Please Note: Inductive loads (typically electric motors, electric pumps, electric compressors and air conditioners) require 6-8 times more current to start than to run. A 1 kVA electric motor therefore will require 6-8kVA for start up. Power King generators can provide 100 overload for start up purposes. A 1 kVA electric motor therefore can be started with a 3-4kVA generator. Once the 1 kVA electric motor has started, it will only consume 1 kVA and further 2-3kVA are then available for other appliances.

Generator Selection
The generator size must be equal or greater than the total consumption of all applications. The higher starting requirement must he taken into account accordingly. To maximise the generator potential, the largest electrical motor should be started on its own and further appliances should only be switched on thereafter.
     
 
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