FIELD: electrical engineering.
SUBSTANCE: apparatus (100) and method are provided for translating diagnostic information provided by a circuit protective device, such as a circuit breaker, to a graphic display format. These apparatus and method monitor through a sensor (120) a trip sequence, implemented by the circuit protective device as a function of time during a read out operation to indicate a type of fault condition from a plurality of fault conditions for a prior occurrence of a trip event or diagnostic information. Apparatus and method then determine a time period of the monitored trip sequence, and determine the type of fault condition based on the determined time period. Information concerning the determined type of fault condition is outputted. Trip sequence may be monitored using sensors, such as an acoustic sensor (for example., a microphone), a voltage probe or a current probe, to detect operation of the circuit protective device, such as whether the device is in an ON position or a TRIPPED position.
EFFECT: technical result is an increase in the accuracy of monitoring the sequence of shutdowns.
17 cl, 8 dwg
