Cooling method for transformer

Why cooling system for transformer very important? The amount of heat from a transformer typically dissipated  is about 12.5 watts per square meter of surface area per degree C.It also can prolong the transformer life span if it running in normal temperature without exceed the maximum limit.

Normally transformer installed in special area or room for power distribution such as sub station or power room.The heat generated from transformer must be removed by circulate the air by ventilation or by the cooling system.

Commonly manufacture use a method of lettering is used to denote the form of cooling for a particular transformer.Four upper case letters are used.The first pair of letters are for the heat removal from the windings and core. read more

Efficient Electrical Appliances

When buying electrical appliances it is important to choose the right size.Refrigerators, air conditioning equipment,water heaters, televisions, and vacuum cleaners come in various sizes. Basically larger size of equipment consume more energy.

The cost of electricity used by an appliance over its working life often exceeds the purchase price of the appliance. Hence when purchasing an equipment one should consider the “total cost” of owning the equipment.

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