GE IAC Masterclass Part 2: TESTING - How To Test Relays ep6

This is part 2 where we talk about testing the GE IAC! The GE IAC relay was one of the most popular electromechanical relays on the planet. It is very similar to the Westinghouse CO series of relays (CO8, CO9, CO10, CO11, etc) and is the predecessor to the GE IFC relay. In fact, most of the testing procedures are identical between all three of these. There are still tens of thousands of electromechanical overcurrent relays still in service all over the world, and if you're fortunate enough to be employed in maintaining, testing, and calibrating them, you'll need to know this procedure. The test paddle shown in the video is GE part number XLA12A1. https://www.gevernova.com/grid-solutions/products/brochures/xla.pdf Protection Suite Introduction - 0:00 TAP/Pickup Test (Good way) - 3:16 TAP/Pickup Test (Better way) - 7:15 TAP/Pickup Test (Best way) - 11:07 Time Over-current Test - 14:18 Instantaneous Pickup Test - 20:59 Instantaneous Dropout - 26:04 The Problem with NETA Relay Testing Specs - 29:19 Seal-In Pickup - 30:51 Seal-In Dropout - 37:11