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What is an isolation transformer? State any two applications of isolation transformer.

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i) Isolation transformers are specially designed transformers for providing electrical isolation between primary & secondary windings. The transformer has primary and secondary windings placed on the common core limbs which have equal number of turns so that the voltage fed to the primary is available at the secondary without any change in its magnitude. ii) These are built with special insulation between primary and secondary. iii) The construction & working of isolation transformer is same as conventional transformers. 

Applications of isolation transformer: i) Disconnect the load equipment from supply ground: ii) Reduction of voltage spikes iii) It acts as a decoupling device.

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