Power Plant Transformers

Power Plant Transformer

·         Distribution Transformer

·         Power Transformer

Distribution Transformer :-  Transformer are used to step down the distribution voltage to  a standard service voltage or from transmission voltage to distribution voltage are known as Distribution Transformers.They are kept in Operation all the 24 hours a days whether they are carring any load or not. they have a good voltage regulation and are designed for small value of leakage reactance.

Power Transformer :-

Power transformer are used in generating station or substation at each end of a power transmission line for stepping up or stepping down the voltage .They are put in operation during load period and are disconnected during light period .

They have designed to have maximum efficiency at or near full load. Power transformers are designed to have considerably greater leakage reactance . For Power Transformers The voltage regulation is less important than the current limiting effect of higher leakage reactanace.

Application Of Transformer:-

·         To Change the level of volatge and current in electric power system

·         As impedance matching device for maximum power transformer in low  power  electronics and control circuit .

·         As coupling device

·         To isolate one circuit from another, since primary and secondary are not interconnected

·         To Measure volatge and current . these are knowns as instrument  Transformer

·         Converting HVAC to HVDC in combine ac/dc power system

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