Case Study

Malfunctioning Traffic Light

Malfunctioning Traffic Light

Pages 2 Pages

Application Note Problem description This case history came from an electric utility engineer assigned to maintain the power systems for several small towns in the western U.S. The engi- neer carries a Fluke 43B on all trouble calls, because it provides a graphical display that allows customers to see a “picture” of the problem. The case history began with a call from a local police department. The officer explained that the traffic light at

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