What size generator do i need..??
The first thing you need to do is work out your total electrical load.
Then establish your steady state load - the lights and appliances you expect to operate at at any one time.
When electric motors form part of your appliances, calculate your maximum demand by adding the xtra power required to start the electric motor to your steady load. (Note : Electric motors nees more power to start than run. Use the simple formula of 3 x the motor horsepower (hp) to add to your required KW. For motors starting under load i.e compressors or submersible pumps, a higher value is required. This guide applies to modern motor design only.
Conversion Table : To Convert Watts to KVA @ 0.8PF, divide Watts by 0.8 eg: 2,000 Watts = 2.5KVA, 4,800 Watts = 6KVA. To convert KVA to KW @ 0.8PF, multiply KVA x 0.8.
Common Appliance Ratings :- Kettle or Jug = 1600-3000 Watts, 9" Grinder = 2,300 Watts, Toaster = 2,400 Watts, Clothes Dryer = 2,400 Watts, Computer = 50-300 Watts, 1hp Electric Motor = 750 Watts Running
Selecting the right pump for the job is essential..!
When seeking advice on a pump or water supply system, take a few minutes to gather some basic information as per the questions listed below, as with this information, we can assure you the right pump will be selected for your application.
- For what purposes do you require a water pump
- From what source of supply is the water to be drawn
- Is the water supply clean / muddy / gritty
- How far down (vertically) from the pump to the water level itself
- How long is the suction pipe, and what is the diameter of the suction pipe
- How far along does the pump have to push the water and through what size pipe
- Total flow required
- Is the pump to be electric or engine driven
Common average water requirements :- Shower = 15LPM @ 140KPA, Lawn Sprinkler = 15LPM @ 140KPA, 1/2" Tap = 12-15LPM @ 140KPA