Isolation Transformer Working & Specification

A isolation transformer is a transformer used to exchange electrical power from a wellspring of Alternating current (AC) power to some supplies or gadget while confining the controlled gadget from the power source, ordinarily for wellbeing. Isolation transformers give galvanic isolation and are utilized to ensure against electric shock, to smother electrical clamor in touchy units, or to exchange power between two circuits which should not be joined. Disengagement transformers piece transmission of DC signs from one circuit to the other, yet permit AC signs to pass. 

Working :

An Isolation transformer is a transformer, often with symmetrical windings, which is used to decouple two circuits. An isolation transformer allows an AC signal or power to be taken from one device and fed into another without electrically connecting the two circuits. Isolation transformers block transmission of DC signals from one circuit to the other, but allow AC signals to pass. They also block interference caused by ground loops. Isolation transformers with electrostatic shields are used for power supplies for sensitive equipment such as computers or laboratory instruments.   

In electronics testing, troubleshooting and servicing, an isolation transformer is a 1:1 power transformer which is used as a safety precaution. Since the neutral wire of an outlet is directly connected to ground, grounded objects near the device under test (desk, lamp, concrete floor, oscilloscope ground lead, etc.) may be at a hazardous potential difference with respect to that device. By using an isolation transformer, the bonding is eliminated, and the shock hazard is entirely contained within the device.

In a pinch, a line-voltage Isolation transformer may be made by determining the total load of the device under test and finding two identical line transformers each capable of handling the load. A power cord is attached to the primary of one transformer, an outlet to the primary of the other transformer. The secondaries are then connected to each other. An example with two 120 V:12 V transformers would yield 120 V → 12 V → 12 V → 120 V.

Isolation Transformer Specification :

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