What is Ground Loop?

Definition

An unwanted current path created when two points in a circuit are connected to ground at different potentials. Ground loops cause noise, signal errors, and communication failures in industrial control systems with multiple ground references.

Related Terms

Grounding

The practice of connecting equipment frames and circuit references to earth for ...

Signal Ground

The reference potential for low-voltage analog and digital signals in a control ...

Galvanic Isolation

Electrical separation between circuits that prevents direct current flow while a...

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