| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an operation display device for a digital protection and control apparatus, which enables an operator to determine at a glance the operation of the apparatus or a current state of the apparatus after the occurrence of a malfunction or a transient fault mode, and also which easily determines that the apparatus is under operation test. <P>SOLUTION: An operation display device 11 for a digital protection and control apparatus for protecting a power system by protection and control calculation by a microcomputer displays the operation state of the apparatus, and consists of a touch panel display 12 including a touch panel type screen, multiple pilot lamps 13 and operation switches 14. The pilot lamps include a first state-of-change pilot lamp 13a1 which holds and displays a state of change which has changed from normal state and a first current-state pilot lamp 13b1 which indicates a current state of elements which have changed from normal state. <P>COPYRIGHT: (C)2010,JPO&INPIT |
