Open, Delayed or Closed Transition? Selecting the Right Transfer Switch

While most transfer switches are equipped with basic features that make them suitable for simple installations, larger or more complex projects often require additional features to meet special requirements. One such special requirement is the need to protect sensitive equipment whenever building loads are switched between two live, un-synchronized, power sources. How exactly does a proposed transfer switch execute a transfer between the normal source and the emergency source, and what effect will the transfer sequence have on the connected loads? Learn the key differences between open, delayed and closed-transition automatic transfer switches, and how to specify the right equipment.

SCAC, CAC, AATAC, what does it all mean?

New emission regulations have led to massive changes in the way diesel engines are cooled. Older engines had a single jacket water circuit (using a mixture of ethylene glycol and water) that was responsible for removing heat from the engine and transporting it to a radiator. Simple enough, right? Fast forward to today! Engines are … Read more