What do you need to know about change over relays?
What do you need to know about change over relays? A Change Over type relay is much like a Single Pole Double Throw (SPDT) relay. Inorder to explain the working of a Change Over Relay, I have compared it to a SPDT relay. A SPDT relay configuration switches one common pole to two other poles, flipping between them. How do you test for intermitted relay failure? Step 1 - To test for intermitted relay failures which are common, remove the relay in question, take a small wire strand, about two inches long and insert it into the relay connector terminal...