Electric Power Substation

An electricity power substation refer to a part of the electric power transmission system where voltage is changed form low to high using a step down transformer or from low voltage to high voltage using a step up transformer

A substation having a step up transformer serves to increase the voltage while reducing the current. However, a substation with a step down transformer will lower the voltage and increase the current for both commercial and domestic consumption.

Electric power substations generally consist of circuit breaker, buses, surge suppressors, switches with or without a transformer. Transformers are used in an electric power substation to decrease or increase voltage. Bus bars also called buses, are usually made of copper or aluminum and are connected to insulators. They are used in substations for purposes such as connecting transformers and transmission lines to each other. Circuit breakers are called to play in case there is a short circuit to avoid damage.

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