AZT-9
ZPrAE Sp. z o.o.
11
3.7. Disturbance recorder
The AZT-9 protection device is equipped with a disturbance recorder recording
analogue data, protection status and binary states from all input and output modules of the
device at the frequency of 1 kHz. It enables in-depth analysis of the cause and working
conditions in case of operation. When the recording is triggered an impulse is generated
by one of 8 configurable channels of the recorder. Each channel can send the signal from
the logic of the AZT-9 device directly or as a negated signal. Total time of single recording
and post-trigger time of recording can be configured in a range from 0.6 to 60 s. The
recorder has a non-volatile memory that allows for saving 1- 210 records depending on the
time of a single recording. Trigger time and proper pre- and post-trigger operation time of
the device is saved when the recording is triggered. If the recorder runs out of space it
starts overwriting the oldest records. Records are saved in a universal COMTRADE
format. The device is supplied with software for viewing and analysing the records.
4. CONFIGURATION OF THE DEVICE FROM FRONT PANEL
All settings of the AZT-9 protection device can be remotely configured with proper
ZPrAE Edit software or using function buttons on a front panel. To view or change the
current settings go to main menu by pressing
button. The following groups of settings
are available in the main menu:
