How The University of Nevada, Reno Keeps Its Lab Running When The Power Fails (Page 5)

An isolation transformer is a heavy device (think of it as a bunch of large copper coils) used to transfer power from the source (building, wall socket, etc.) while keeping it isolated. This helps eliminate electrical feedback and noise created by other electrical equipment on the same circuit or plugged in elsewhere in the building (i.e. a microwave, laser equipment, etc.). Isolation transformers are also used to enhance safety. In a lab or medical environment with critical equipment, you can’t tolerate a device malfunction because someone used the microwave in the other room or ran a test on a laser system nearby.

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