ABB RET670 Product Manual page 79

Transformer protection
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ABB
Transformer protection RET670
Customized
Product version: 1.2
Table 82. Disturbance report DRPRDRE
Function
Pre-fault time
Post-fault time
Limit time
Maximum number of recordings
Time tagging resolution
Maximum number of analog inputs
Maximum number of binary inputs
Maximum number of phasors in the Trip Value
recorder per recording
Maximum number of indications in a disturbance report
Maximum number of events in the Event recording per
recording
Maximum number of events in the Event list
Maximum total recording time (3.4 s recording time
and maximum number of channels, typical value)
Sampling rate
Recording bandwidth
Table 83. Event list
Function
Buffer capacity
Resolution
Accuracy
Table 84. Indications
Function
Buffer capacity
Range or value
(0.05–9.90) s
(0.1–10.0) s
(0.5–10.0) s
100, first in - first out
1 ms
30 + 10 (external + internally
derived)
96
30
96
150
1000, first in - first out
340 seconds (100 recordings) at
50 Hz, 280 seconds (80
recordings) at 60 Hz
1 kHz at 50 Hz
1.2 kHz at 60 Hz
(5-300) Hz
Maximum number of events in the list
Maximum number of indications presented for single
disturbance
Maximum number of recorded disturbances
1MRK 504 117-BEN D
Accuracy
-
-
-
-
See table
105
-
-
-
-
-
-
-
-
-
Value
1000
1 ms
Depending on time synchronizing
Value
96
100
79

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