If you’ve read anything about relay testing written in the last ten years or so, you’ll see a pattern; No-one is talking about the traditional pickup and timing tests most relay testers (and most automated relay testing software) use to test relays. You are much more likely to read terms like “dynamic testing” or “system testing”, which are the true future of relay testing. Unfortunately, these terms aren’t well defined and are usually embedded in a short article written in engineer-ese that even I, a relay testing “expert”, usually have trouble following.