Purpose and Applications of Isolation Transformers - Ningbo Wanji Electronics Science & Technology Co., Ltd.

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Purpose and Applications of Isolation Transformers

Isolation transformers make it possible for AC current or signals to traverse from one device to another without actually being linked. The primary and secondary windings of an isolation transformer are kept physically separate.

Isolation transformers separate one circuit from another in order to have a "clean" current or signal arrive at the final stage. Because they are constructed as they are, Isolation transformers allow AC signals to pass while blocking DC signals and Interference caused by ground loops. Symmetrical windings are most often used; allowing the AC current to retain its current and voltage characteristics while accomplishing the desired protective functions.

Isolation transformers that are shielded are more desirable for use for power supplies for sensitive electronics and critical equipment. The shielding is usually metal or aluminum and is placed between the primary and secondary windings. It is also grounded. ShieldedIsolation transformers block surges and other phenomena while static and locally induced currents are drained off. This protects personnel and electronic equipment from undesirable ambient power conditions often occurring due to normal use and interactions of electrical activity within an area.

Placing a series of two or more Isolation transformers between the power source and the load dramatically improves the quality of the power. This is referred to as "cascading".

Isolation transformers are a major group that includes as a sub group medical isolation transformers. These differ as they are highly regulated by government safety and quality standards. Before ordering it should be determined which will fulfill the legal and safety needs of the application in question.

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