Trapped key interlocks have a number of functions in substation switchgear applications. For example, preventing the paralleling of two energy sources, preventing particular operations until a breaker is locked open or closed, preventing disconnecting of breakers under load, and minimizing the possibility of a hazardous arc flash. These are often part of a larger trapped key interlock system.
Arc Flash Reduction
Arc flash hazard protection of personnel working on or near energized electrical equipment is crucial. Click the button below to view the Arc Flash Reduction application guide.View the Application Guide
Ship to Shore Power
When a ship comes to port and is mooring at dock, ships equipped with an Alternative Maritime Power (AMP) cable reel are able to shut down their generators, reducing noise and air pollution, and connect to land based power. This process is also known as cold ironing. Using KIRK® interlocks when connecting ship’s power cables to on shore power will ensure that the cables are properly coupled to the junction box before energizing.View the Application Guide