| 摘要 |
PROBLEM TO BE SOLVED: To properly carry out the automatic test and understand the test result easily by a method, wherein the automatic test result is compared with a predetermined protective relay setting value to judge the acceptability of the test result and the judgment result is printed by a printer, and if the test result is not acceptable, an alarm is issued by an alarm device. SOLUTION: A judgment circuit 10 judges the acceptability of the automatic test result obtained by an automatic test circuit 6. The automatic test result is compared with a protective relay setting value which is stored in the automatic test control circuit 6, beforehand by the judgment circuit 10, to judge the acceptability of the test result. The judgment result of the judgment circuit 10 is printed by a printer 11 as a record and, if the test result is judged to be unacceptable, a warning is issued by a warning device 12a. With this constitution, the connection of the printer, the printing of the automatic test result, the verification of the set value list and the judgment can be automatically executed, without the intervention of a human being. As a result, the automatic test can be carried out properly, and the test result can be easily understood. |
