Table. 5.6.3 - 188. Event messages.
Event block name
Event names
THD1
THD Start Phase ON
THD1
THD Start Phase OFF
THD1
THD Start I01 ON
THD1
THD Start I01 OFF
THD1
THD Start I02 ON
THD1
THD Start I02 OFF
THD1
THD Alarm Phase ON
THD1
THD Alarm Phase OFF
THD1
THD Alarm I01 ON
THD1
THD Alarm I01 OFF
THD1
THD Alarm I02 ON
THD1
THD Alarm I02 OFF
THD1
Blocked ON
THD1
Blocked OFF
The function registers its operation into the last twelve (12) time-stamped registers. The register of the
function records the ON event process data for START, ALARM and BLOCKED. The table below
presents the structure of the function's register content.
Table. 5.6.3 - 189. Register content.
Date and time
Event
L1h, L2h, L3h Fault THD
Used SG
dd.mm.yyyy hh:mm:ss.mss
Event name
Start/Alarm THD of each phase.
Setting group 1...8 active.
5.6.4 Disturbance recorder (DR)
The disturbance recorder is a high-capacity (64 MB permanent flash memory) and fully digital recorder
integrated to the protection relay. The maximum sample rate of the recorder's analog channels is 64
samples per cycle. The recorder also supports 95 digital channels simultaneously with the twenty (20)
measured analog channels. Maximum capacity of recordings is 100.
The recorder provides a great tool to analyze the performance of the power system during network
disturbance situations. The recorder's output is in general COMTRADE format and it is compatible with
most viewers and injection devices. The files are based on the IEEE standard C37.111-1999. Captured
recordings can be injected as playback with secondary testing tools that support the COMTRADE file
format. Playback of files might help to analyze the fault, or can be simply used for educational
purposes.
Analog and digital recording channels
Up to 20 analog recording channels and 95 digital channels are supported. The available analog
channels vary according to the device type.
Table. 5.6.4 - 190. Analog recording channels.
Signal
Description
IL1
Phase current I
L1
A
AQ
Q-C215
-C215
Instruction manual
Version: 2.07
© Arcteq Relays Ltd
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