Measurement Settings - DEMA 400 Series User Manual

Directional protection relay
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• Current Phase Rotation
It is used to indicate that the current terminals connected to the relay come from different
phases. It allows to change the rotations of the phases without changing the cable in the field.
This rotation; It can be selected as R-S-T or R-T-S.
• Voltage Phase Rotation
It is used to indicate that the voltage leads connected to the relay come from different phases.
It allows to change the rotations of the phases without changing the cable in the field. This
rotation; It can be selected as R-S-T or R-T-S.
• Phase / Neutral View
The selection of the phase / neutral display to the field is done on this screen. This view; R-S-
T-N can be selected as A-B-C-N and L1-L2-L3-N.
• Block Mode
Blocking mode is the setting that determines how all blocking signals to the device will
behave.
- Blocking Inactive Mode: When this selection is activated, the guards in the device are not
blocked.
- Freeze Counting Mode: When a blocking signal is received to the device, the guards keep
the time counted up to that time and continue to count when the blockage is removed.
- Reset Count Mode: When a blocking signal is received to the device, the time counted by
the guards is reset and starts from the beginning when the signal disappears.
- Resume Count Mode: When a blocking signal is received to the device, the guards continue
to count the duration but do not create a Trip. When the blocking signal is removed and
expires, they form an opening immediately.
Measurement SettingsHata! Yer işareti tanımlanmamış.
4.6.2
Under Construction
4.6.3
Disturbance Recoding
Under Construction
112

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Dpm 400 dVpm 400 dCpm 400 dMpm 400 dDpm 400

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