Generators division at Goscor (Pty)Ltd advise that clients should use the following formula based on the WATTS used per electrical applicance in order to calculate the total power required to run a household:
Kettle = 1000 w
Fridge = 250 w
TV = 150 w
Lights x 4 (100w)= 400 w
TOTAL : 1800 w (1.8 KVA generator)
When an electrical appliance is turned on, it initially requires more power than the appliances specified watts. This varies from appliance to appliance. For example, the start up power required for a borehole pump or fridge compressor is far more than a Microwave or TV. In order to compensate for startup power, users should multiply the Watts by 2 in order to purchase a generator that will provide enough power to suit their needs:
Example: 1800 W X 2 = 3,6000 (3,6 KVA generator)
Justin Kitson at Goscor also provided the following advice to business owners and home users:
" If you need to use sensitive equipment such as computers it is advisable to use a generator fitted with an AVR unit or one that uses inverter technology. What these units do, is to keep the voltage coming through at a constant level preventing any spiking. Spiking takes place when the voltage increases or decreases due to fluctuations in the engines revs. Generators such as the Robin R 1700i use inverter technology which eliminates spiking making it ideal for users requiring generators to be used for sensitive equipment."
It does not seem as if there will be an end to the blackouts in Cape Town soon, as another occured on Tuesday 28 February 2006. With winter looming, it is best advised that Cape Town citizens obtain alternative means to supply themselves with power as soon as possible.
The media and interested parties are invited to visit the
Goscor Power Products site for details or contact any distributor for more information.
The Robin R 1700i inverter technology generator
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