Generators
Plugging into mains electricity is something we all take for granted in our day to day lives. Many appliances that we use on a daily basis require an electric power supply or need electricity to power a battery charger which in turn charges a battery, allowing the device to be used. Site workers are more likely to encounter the inconvenience of not being able to plug their power tools and electric equipment into the mains as it may well be the case that electricity has not yet reached the site. In certain situations cordless tools may be the answer, especially now that battery capacities have significantly increased to the extent that even large, high drain tools such as chopsaws and angle grinders can work on battery power.
In the event that there is no commercial or credible cordless alternative a petrol generator could well be the solution. In simple terms, generators work by converting mechanical energy into electricity with the electrical output of the generator being referred to in kilowatts (KW) or KVA (Kilovolt ampere). As output increases so does the weight and physical dimensions of the generator.
Many portable petrol and diesel generators place the engine within a protective frame or in the case of smaller generators, come with a carry handle so they can be lifted and carried more easily; some large output generators will come with wheels or be built into a trailor so they can be towed by a vehicle. When purchasing a generator it is essential the user identifies the type of equipment that it will be required to power with consideration to the wattage consumption of these tools and appliances. It is essential that the overall output of the generator at least matches the wattage demands of the appliances it is expected to run although it is highly recommended that the generator output exceeds them to allow for peak loads such as when starting up power tools. Other factors determining which generator should be selected are fuel types, petrol or diesel, how many electrical sockets the generator needs to have and what voltage these sockets need to be? It is popular with generators used in construction trades to have both 230v and 110v sockets available.
Some electronic power tools and devices such as battery chargers use delicate circuit boards in their manufacture which can be sensitive to voltage spikes that generators are known to produce. In order to prevent damage to these circuit boards (PCB) Automatic Voltage Regulators (AVR) can be specified and are available to order at Protrade.
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