It is made of two windings which are separated by very good insulation and also may be separated by a faraday shield.
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in isolation transformer earthing is not provide on secondary side but in ordinary transformer neutral of secondary side is earthedAnswerAn isolation transformer is a 1:1 ratio transformer; its function is to electrically isolate the secondary side from the primary side without changing the voltage. An example of an isolation transformer is the one used in a shaver socket.A distribution transformer is a step-down transformer, used within the electricity network's distribution system. An example of distribution transformer is a pole-mounted transformer, supplying low voltage to residences.(Of course, all mutual transformers provide electrical isolation between primary and secondary.)
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The Scott-T transformer was used to run 2-phase equipment from a 3-phase source. Older power distribution systems (and equipment) were 2-phase. An isolation transformer usually has the same input and output voltages (120:120, 240:240, etc) and is used to isolate the source from the load. Isolation transformers are used in medical equipment, for instance, to prevent a patient hooked up to a monitor from being electrocuted during an electrical fault.
It will segregrate the Battery unit and power supply unit,seperate.----Arun
If the number of turns in the primary is the same as the secondary, this would be an isolation transformer. Primary and secondary voltages should match (minus the inherent transformer losses), as should the current.