Transfer Switch Withstand Ratings: 3-cycle or 30-cycle?
How and when to apply “3-cycle rated” vs. “30-cycle rated” transfer switches should be a rather important consideration for a design engineer. A coordination study is a critical element that must go hand-in-hand with the design and specification of a safe and reliable emergency power system. Some basic definitions Interrupting ratings – the highest current at rated voltage that a device is intended … Read more