Everything you need to know about generators

One has to decide what your priorities or needs are before any decisions can be made as to what to purchase.When considering the above, keep the following in mind:Appliances which contain elements (eg: geysers, kettles and heaters) and the wattage on the item is usually the correct value to use when adding up what wattage is needed from the generator.Add the watts on appliances you wish to run. For example, if the total is 5000 watts, this equals 5kva. Times this by 1.2, which equals 6.5kva, (the size of the generator you will need). Very simply 5500 watts is similar to 5.5kva at sea level.Another important point to remember is that on the Highveld, engines produce 20% less power than they do at sea level, due to the drop in atmospheric pressure with increased altitude
Installation advice:Automatic mains failure (AMF) with UPS: has no delay before the power is restored. It switch’s off your normal power supply and your generator on, without you leaving the comfort of your chair, while watching your favorite television programme.Manual mains failure: will switch off your power supply and requires that you manually start your generator up.Manual change over panel: requires that you switch off your normal supply and start the generator manually.Direct method: This is the simplest method. The appliance is plugged into the generator directly via an extension cord. In this case, the only outlay is the cost of the generator.Use a local electrical contractor to do your installation, remember that if the contractor installs the generator wrongly, the generator can burn out and no company will warrantee the product.Petrol generators vs. Diesel generators:Petrol pro’s:Capital outlay is at least half of the equivalent size.Require slightly less maintenance.More powerful than same sized diesel engines but need to run at higher revs to produce that powerPetrol cons:Highly flammableFuel consumption is high Diesel pro’s:Normally require slightly more maintenance.If the set is used for 24 hours the engine will last a great deal longer than petrolDiesel is more fuel efficient Operating costs are less in the long runDiesel cons:Capital outlay is at least double or more than that of a petrol set.Tips and Hints:Never refuel a petrol generator while the engine is running. A spark from the sparkplug can ignite the fuel and start a fire.Always make sure that the appliances or power tools are switched off before starting up the generator.Do not use an extension which is longer than 15 meters without increasing the diameter of the cable.Always refuel before the tank is empty.Shock and Electrocution Never attach a generator directly to the electrical system of structure (home, office, trailer, etc.) unless a qualified electrician has properly installed the generator with a transfer switch. Always plug electrical appliances directly into the generator using the manufacturer's supplied cords or extension cords that are grounded (3-pronged). Inspect the cord to make sure they are fully intact and not damaged. Never use frayed or damaged extension cords. Keep a generator dry; do not use it in the rain or in wet conditions. If needed, protect a generator with a canopy.Carbon Monoxide PoisoningNever use a generator indoors or in enclosed spaces such as garages, crawl spaces, and basements. Make sure a generator has three to four feet of clear space on all sides and above it to ensure adequate ventilation. Be cautious when using a generator outdoors to ensure it is not placed near doors, windows, and vents could allow carbon monoxide to enter and build up in occupied spaces. If you or others show symptoms of carbon monoxide poisoning (eg: dizziness, headaches, nausea, tiredness) get to fresh air immediately and seek medical attention. Do no re-enter the area until it is determined to be safe by trained and properly equipped personnelFire Hazards Generators become hot while running and remain hot for long periods after they are stopped. Generator fuels (gasoline, kerosene, etc.) can ignite when spilled on hot engine parts. Before refueling, shut down the generator and allow it to cool. Don't overload the generator.Do not operate more appliances and equipment than the output rating of the generator. Overloading your generator can seriously damage your valuable appliances andelectronics. Prioritize your needs.Portable generators:Portable generators can cause electrocution if they are left in the rain or sitting in water. Keep the generator under a canopy where it is protected, but not totally enclosed. It must still have adequate ventilation. Never touch the generator when you are standing in water or your hands are wet. Never run extension cords through water of any kind.DEVICE - TYPICAL WATTAGELight bulb - 60 wattsElectric oven - 3.410 wattsDeep Freezer - 500 wattsDishwasher - 1.500 wattsWashing machine - 1.150 wattsFridge - 1.200 wattsDvd / Cd player - 100 wattsTelevision - 300 wattsComputer and monitor - 400 wattsMicrowave - 350 wattsGeyser - 4.500 watts