| 摘要 |
<p>PURPOSE:To improve stability by displaying residual time up to the end of the setting time of a timer built in an interlock in a required system on a timer display device. CONSTITUTION:An atomic power plant or the like is provided with an interlock in order to protect various systems and apparatuses. At the time of generating trouble such as abnormality, the plant sets up the interlock based upon a previously set forming condition to automatically start the system and displays the trouble or the like on a plant state display device as an alarm. In this case, the interlock is provided with a timer display device 11 and the display device 11 is provided with a residual time computing element 11a, which is started interlocking with the start of the timer built in the interlock to computer the residual time from its start up to the end of the setting time. The residual time is alarmed and displayed respectively in an alarm 11b and a residual time display device 11c.</p> |
