Patent ID: 8664961

Claim:
An apparatus for validating an arc flash detection unit (AFDU), the AFDU configured to generate an arc flash detection signal responsive to stimulus indicative of an arc flash event, the apparatus comprising: a stimulus generator in communication with the AFDU, the stimulus generator comprising a first stimulus generator configured to provide a first type of test stimulus to the AFDU and a second stimulus generator configured to provide a second, different type of test stimulus to the AFDU; and a test controller of the apparatus in communication with the stimulus generator and configured to cause the first and the second stimulus generators to provide the first and the second type of test stimulus to the AFDU concurrently and to detect a response of the AFDU to the test stimulus, wherein the response comprises an arc flash detection signal, and wherein the test controller is further configured to determine a configuration of an arc flash detection algorithm of the AFDU based on the detected response of the AFDU to the first and second type of test stimulus, wherein the configuration of the arc flash detection algorithm corresponds to a relationship between the first and second types of test stimulus required to trigger the arc flash detection algorithm.