Inducing Ground Loop

[vin2install 0]

Hello everyone. I need to test a ground loop isolator product that my company will introduce. I was wondering how do i induce a ground loop into a line?

[survtech 0]

Try running a camera at the end of 1000 ft. of coax spread out on the ground and tie the camera's ground connection to a good ground like a cold water pipe.

[vin2install 0]

dont have a 1000' of coax lying around. Can i do it with 10' coax with the camera ground on a water pipe?

[survtech 0]

I doubt it. Ground loops are caused by the difference in potential (voltage) between two grounds usually located some distance from each other. 10 ft. would hardly be enough distance.

[Soundy 1]

Three or four cheap cameras with common video/power grounds, UTP, baluns, and a central 12VDC power supply. The shorter the runs, the more differential the baluns will introduce.

[Kiwi 0]

Assuming the equipment at both ends has grounded shields, run one ground through the secondary of a small low voltage transformer, say 6VAC from Radio Shack or similar. Then apply about 24VAC using a standard camera power supply to the 110 V primary of that transformer and you will be able to modulate the ground with a volt or two of "hum," simulating a typical ground loop.