TESTING APPARATUS AND TESTING METHOD FOR ISOLATED OPERATION PREVENTION FUNCTION, AND ASSOCIATED TECHNOLOGY THEREOF

摘要

PROBLEM TO BE SOLVED: To improve efficiency of a test regarding a testing apparatus for an isolated operation prevention function with respect to a power conversion device such as a power conditioner.;SOLUTION: A tested device 30 of a DC/AC conversion function and a load device 17 are connected to an AC power source 11 via a parallel-off breaker 13. In a testing apparatus A for an isolated operation prevention function, there are a plurality of patterns for load settings, it is iteratively confirmed that temporary output stop of the tested device 30 with opening of the parallel-off breaker 13 is achieved within a specific time under the load settings of the patterns until completing the confirmation for all the load setting patterns, and the load settings of the next candidate is recovered after the parallel-off breaker 13 opened for the repetition, is closed again. After the load settings to the load device 17 and before opening the parallel-off breaker 13, time waiting for a fixed time and an output level determination just after the wait are performed. If an output level does not achieve a specific range, the time waiting and the output level determination are repeated. If the output level achieves the specific range, processing is progressed to an isolated operation prevention function test which is started from opening the parallel-off breaker 13.;COPYRIGHT: (C)2014,JPO&INPIT