Basic Knowledge about Electric Transformers For the most part, electric transformers can be used as step-down transformers or step-up transformers. The step-down transformer converts electricity from high to low voltage and the step-up transformer converts electricity from low to high voltage. Electrical or power transformers play a very important role in our lives. As a matter of fact, without transformers, electrical equipment wouldn’t work. The condition for home electrical equipment to work is the presence of proper voltage that it receives. That is why between home outlets and electrical stations the transformers are placed for transforming voltage to proper value. An electrical transformer can transform only wave-form electricity, meaning that it can only operate using alternating current. Transformer performs his job using windings or coils; usually consisting of two sets of coils. The first one is the high side -high voltage connection- while the second one is the low side -low voltage connection. There is one condition without which the transformer would be useless. It is wire insulation. The windings or coils have to consist of insulated wires. These electrical coils are given proper insulation in order to conduct a path that was created. Due to insulation wires, a power transformer is able to create lengthy wire for conducting electricity. So it is necessary for the transformer wire to be insulated.
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