| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a power conditioner capable of accurately determining its service life.SOLUTION: A power conditioner comprises: a power conversion unit which converts DC power to AC power; time detection means for detecting elapsed time from the start of use of the power conditioner; time comparison means for comparing the elapsed time detected by the time detection means with the threshold time set corresponding to a life-time; and service life determination means for determining that the power conditioner reached its service life when the elapsed time exceeds the threshold value and that the power conditioner has not reached its service life when the elapsed time does not exceed the threshold time.</p> |
