Apparatus, systems, and methods for operation of a trip unit in a circuit protection device

摘要

Apparatus, systems, and methods for operation of an electronic trip unit are described. One example is a method for use in operating an electronic trip unit including a first controller. The first controller is configured to selectively operate a tripping device coupled between an input terminal and an output terminal of the electronic trip unit. The method includes receiving, by a second controller, a plurality of health signals from the first controller. The second controller determines an existence of an undesired condition based on at least one of the plurality of different health signals, and determines a first action to be taken to remedy the undesired condition.

主权项

1. A circuit protection device configured to receive a power input and provide a power output, said circuit protection device comprising:
an input terminal configured to receive the power input; an output terminal configured to provide the power output; a tripping device coupled between said input terminal and said output terminal and configured to selectively interrupt a flow of current between said input terminal and said output terminal; and a trip unit coupled to said tripping device, said trip unit comprising:
a first controller configured to:
monitor at least one characteristic associated with the power input;control said tripping device based at least in part on the monitored characteristic; andoutput a plurality of health signals associated with said first controller, wherein each of the plurality of health signals corresponds to a different item of information regarding the functioning of the first controller; anda second controller communicatively coupled to said first controller and said tripping device, said second controller configured to:
determine, based at least in part on at least one of the plurality of health signals, an existence of an undesired condition of the first controller; anddetermine a first action to remedy the undesired condition.