| 摘要 |
PROBLEM TO BE SOLVED: To speedily and accurately verify phase test by bringing a main circuit into a final state of connection and automating phase test processes. SOLUTION: This main-circuit diagnostic apparatus outputs a phase-test check sinal to a current transformer 22 on one end among current transformers 22 and 23 installed on both ends of the main circuit 20 to be diagnosed, receives the input of an answerback phase-test check signal from the current transformer 23 on the other end, and compares the inputted and outputted phase-test check signals with each other by a comparing means 6 to diagnose the state of connection of the main circuit. COPYRIGHT: (C)2005,JPO&NCIPI
|
