As current flows through a conductor, it always generates heat. The greater the current flow, the hotter the conductor. When heat becomes excessive, it can damage electrical components and conductor insulation. This is why conductors have a rated continuous current-carrying capacity (“ampacity”). Over-current protection products, such as circuit breakers, protect conductors from excessive current flow. These protective devices keep the flow of current in a circuit at a safe level, thereby preventing the circuit conductors from overheating.
The Doble TR3100 Circuit Breaker Timer & Analyzer makes it easy for you to test the integrity of circuit breakers and prevent damage of electrical components. The Doble TR3100 measures mechanical motion and contact performance of dead-tank circuit breakers. Timing tests are performed on main contacts, resistor switches and auxiliary contacts. The Doble TR3100 also measures travel and velocity, insertion resistor values and grading capacitor values.
Check out the Doble TR3100 at Protec.