Patent ID: 9322880
Filing Date: 2016-04-26
CPC Classification: G01R

Claim Text:
1. A measuring device for measuring a resistance of a switching contact of an electrical circuit breaker, comprising: a high-current generating unit that generates a measurement current for a resistance measurement, the high-current generating unit being coupled to the electrical circuit breaker, the high-current generating unit feeding the measurement current into the electrical circuit breaker, a measuring unit coupled to the circuit breaker, the measuring unit configured to detect a measurement signal at the electrical circuit breaker during opening and closing of the switching contact, the measuring unit further configured to determine a time-based resistance course of the switching contact during opening and closing, the resistance course being determined as a sequence of digital resistance values, the measuring unit comprising a housing, the housing being a unit mountable on the switching contact, the housing being configured to accommodate the high-current generating unit and the measuring unit, and an energy supply connection configured to supply the measuring device with electrical energy, the measuring unit being configured to output the sequence of digital resistance values via the energy supply connection.