| Distribution Transformer |
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The purpose of distribution transformer is to reduce the primary voltage of the electric distribution system to the utilization voltage serving the customer. A distribution transformer is a static device constructed with two or more windings used to transfer alternating current electric power by electromagnetic induction from one circuit to another at the same frequency but with different values of voltage and current. Distribution transformer is used to convert electrical energy of higher voltage ( usually 11-22-33kV) to a lower voltage (250-433V) with frequency identical before and after the transformation. There are 3 main parts of the distribution transformer : • Coil/winding – Where incoming alternate current (through primary winding) generates magnetic flux, which in turn develop magnetic field feeding back a secondary winding. • Magnetic core – allowing transfer to magnetic field generated by primary winding to secondary winding by principle of magnetic induction. • Tank – serving as mechanical package to protect active parts, as a holding vessel for transformer oil used for cooling and insulation and brushing (plus auxiliary equipment where applicable). Download
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