Transient Fault Recorders - Tfr - Protrol IPC4020 Manual

Transient Fault Recorders – TFR
The transient fault recorder saves the current phases and State during 1 s with the resolution 2000 Hz. 50
ms prefault is saved before trigger and 950 ms after trigger. See Chapter 7.2. for more details on State.
Disturbance recorder data is found under
always saved per detector regardless of which one that triggers the recording. To download the
interference file, simply click on the button Detector 1, Detector 2 or Detector 3. Depending on the browser
settings, you can select the file name and destination for the download.
The Type column specifies what triggered the file to be saved. For example, the earth fault function may
have started. The following events trigger the transient fault recorder:
▪
START overcurrent
▪
START earth fault
▪
START non-directional earth fault
▪
External trigger by binary input
▪
Manual trigger by pressing Capture active live data. See Figure 13.
The rightmost column contains a button, Acknowledge. The purpose of the function is that non-
acknowledged disturbances files should not be overwritten and valuable information lost. A disturbance file
can be acknowledged in several ways:
1. Press the button for the respective interference in the TFR data subtab. Only this specific
disturbance is acknowledged.
2. Press the physical button on the IPC device. All disturbances are acknowledged.
3. By automatic acknowledgment after some time, a setting on the
All disturbances are acknowledged.
4. By sending a telegram, single command to the device, addressing Acknowledge, binary outputs. All
disturbances are acknowledged.
A maximum of four disturbances are saved. Only a disturbance that is acknowledged can be discarded.
When the disturbances are acknowledged, the oldest acknowledged disturbance will be next to be
discarded. This means that after an acknowledgment, IPC402x is always ready to register a new disturbance
record.
Protrol AB
Alfagatan 3
431 49 Mölndal, SWEDEN
Status / TFR data. If there is more than one detector, a file is
39
Config/Detector/Common
Phone: +46 31 45 82 00
internet: www.protrol.se
e-mail: info@protrol.se
Ver 1909
subtab.