Modern protective relays are becoming increasingly powerful and complex, but many relay testers use test procedures and philosophies that are based on previous generations of relays and their limitations. Modern relays have very different characteristics which require a different testing philosophy to ensure they will operate when required. This edition of The Relay Testing Handbook series outlines a step-by-step procedure that will allow the reader to create and implement a protective relay test plan. The procedure follows a logical progression that can be applied to nearly every application and ensures accurate and efficient relay testing that includes the following steps:

1. Collect and compare information from drawings, settings, engineering studies and manufacturer’s bulletins.
2. Prepare for testing by isolating the relay and affected equipment.
3. Establish communication with descriptions of the most common settings and apply the supplied settings.
4. How to properly connect your test set.
5. Create the test plan and decide what elements to test and in which order.
6. Verify your connections and perform relay acceptance tests to verify relay operation.
7. Implement your test plan.
8. Perform final output tests to ensure correct in-service operation.
9. Return equipment to service.
10. What to include in your final report.

Download a sample of the e-book at http://www.relaytesting.net/Downloads/Relay_Testing_Handbook4_Test_Plans.exe and review the sample pages to determine if The Relay Testing Handbook is right for you. Please send this link or downloaded file to people you think would be interested!

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