Generators

Whether you require a generator for domestic, industrial or commercial purposes, there is a great deal to consider before making a decision in favour of a particular model. It is crucial to first assess how and where you plan to use your generator, along with the frequency of use, so that you have a clear idea of your personal requirements. To help you better understand generator specifications and the determining factors for choosing the right product, the following simple and useful buyer's guide will tell you all you need to know.

Leisure & Home Use Power

There are several key considerations when buying a generator for personal or domestic usage. The noise level of the generator is especially important for these generators, and there are products available that operate at lower noise levels. Smaller lightweight models, which are portable and easy to store, are also advisable for these purposes.

Generators for residential and leisure use need to have a 230v and 12v output to make them compatible with the domestic power supply. The run time of the generator is also an important factor and it crucial to assess how long you would need the generator to be continuously running. Generators with larger capacity fuel tanks have longer run times and are more suitable for extended usage.

Inverter technology is a special feature in some generators and it ensures a stable voltage and frequency for appliances such as televisions and computers.

Industrial Use Production

Some of the considerations when buying a generator for industrial purposes are the same as those when choosing a domestic product. Silent running is once again an important factor as is the weight, size and portability of the model. Generators with wheels are particularly useful for improved mobility.

Additional features such as low oil warning systems, which are recommended for generators with large fuel tanks, and which will also shut off the power if the oil level gets too low, as well as extended run times are also desirable for generators for industrial use.

Calculating your Power Output

Although this task may seem a little daunting, it is actually relatively simple. The following step-by-step guide will help you calculate your personal power output.

• Identify the tools and appliances that you intend to power with the generator.
• Determine the required wattage for each appliance (see table below).
• Total the wattage required to power your identified items simultaneously (allowing for motor starting). However, if you have an appliance with a high wattage but which will not be used continuously this can be taken into consideration in your calculation. (Example) When in your caravan, turn your lights and TV off when you need to use the microwave!
• Choose a generator that has rated watts equal to or exceeding this total.

This table will help you identify the wattage of the tools and appliances that you need to power from the generator. However, please note that the watts shown are only an average recommendation and you should check your items before use.

Motor Starting

Motor Starting is an important consideration when buying a generator. Keep in mind that induction-type motors, like those that run sump pumps, refrigerators and compressors, typically require 2-3 times their listed running watts to start. Below is a chart you can use to determine how many watts you will need to start up motors of various sizes and types.

Note: Power tools using universal commutator motors do not require additional start-up power.