ABB Relion 670 Series Technical Reference Manual page 510

Line differential protection ansi
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Section 8
Voltage protection
Name
Values (Range)
PCrv1
0.000 - 3.000
CrvSat1
0 - 100
tReset2
0.000 - 60.000
ResetTypeCrv2
Instantaneous
Frozen timer
Linearly decreased
tIReset2
0.000 - 60.000
ACrv2
0.005 - 200.000
BCrv2
0.50 - 100.00
CCrv2
0.0 - 1.0
DCrv2
0.000 - 60.000
PCrv2
0.000 - 3.000
CrvSat2
0 - 100
Table 256:
UV2PTUV (27) Non group settings (basic)
Name
Values (Range)
ConnType
PhN DFT
PhPh RMS
PhN RMS
PhPh DFT
8.1.6
504
Unit
Step
-
0.001
%
1
s
0.001
-
-
s
0.001
-
0.001
-
0.01
-
0.1
-
0.001
-
0.001
%
1
Unit
Step
-
-
Technical data
Table 257:
UV2PTUV (27) technical data
Function
Operate voltage, low and
high step
Absolute hysteresis
Internal blocking level,
step 1 and step 2
Inverse time
characteristics for step 1
and step 2, see table
732
Table continues on next page
Default
1.000
0
0.025
Instantaneous
0.025
1.000
1.00
0.0
0.000
1.000
0
Default
PhN DFT
Range or value
VBase
(1–100)% of
(0–100)% of
VBase
(1–100)% of
VBase
-
1MRK505222-UUS C
Description
Parameter P for customer programmable
curve for step 1
Tuning param for prog. under voltage Inverse-
Time curve, step 1
Reset time delay used in IEC Definite Time
curve step 2
Selection of Time Delay reset curve for step 2
Time delay in Inverse-Time reset (s), step 2
Parameter A for customer programmable
curve for step 2
Parameter B for customer programmable
curve for step 2
Parameter C for customer programmable
curve for step 2
Parameter D for customer programmable
curve for step 2
Parameter P for customer programmable
curve for step 2
Tuning param for prog. under voltage Inverse-
Time curve, step 2
Description
Group selector for connection type
Accuracy
± 0.5% of V
n
± 0.5% of V
n
± 0.5% of V
n
See table
732
Technical reference manual

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