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Alarm
Annunciator with Real Time Event Recorder |
The
basic function of an alarm annunciator scheme is to provide in the control room,
visible and audible indication of the fault condition. Each window indicates a
fault. There is a bulb/LED inside each window. On the occurrence of a fault, initiation
is through contacts on the protective relay or on a moving member of the equipment
under surveillance. It causes a lamp to flash and alarm to ring. When the control
engineer acknowledges the alarm by pressing an ACCEPT push button, the alarm is
silenced and the lamp become steadily lit. After the fault clearance, control
engineer resets the alarm circuit by pressing RESET push button and the lamp is
extinguished. The event of fault recording is by manual means.The
faults at the beginning itself can be rectified immediately without allowing the
little faults to make bigger consequences. So our project entitled "Alarm
Annunciator with Real Time Event Recorder" provides a better and effective
monitoring of the faults. In addition, it gives visual indication in the LCD which
line is faulty. Since it is interfacing with the PC, events can be saved as a
file.
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