SEL-351S Fault Locator Testing

[Feedhunter]

Has anyone come up with a solid method of proving the fault locator algorithm in the SEL-351. I am thinking it should follow similar testing procedures as for distance relays but I am lost as to the equation I would used to get the actual distance and compare it to the relay's result in the SER.

 

[davidbeach]

First off, the algorithm assumes a homogeneous line. If you don't have a homogeneous line you'll never get as good of results as you would otherwise.

After that, SEL has published a great deal of material on the fault location algorithms they use. Contact your local SEL field application engineer for further information.