ABB RELION REX640 Technical Manual page 837

Protection and control
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1MRS759142 F
Table 758: PDNSPTOC Non group settings (Basic)
Parameter
Values (Range)
Operation
1=on
5=off
Table 759: PDNSPTOC Non group settings (Advanced)
Parameter
Values (Range)
Reset delay time
0...60000
Min phase current
0.05...0.30
4.4.3.9
PDNSPTOC Monitored data
Table 760: PDNSPTOC Monitored data
Name
Type
START_DUR
FLOAT32
RATIO_I2_I1
FLOAT32
PDNSPTOC
Enum
4.4.3.10
Technical data
Table 761: PDNSPTOC Technical data
Characteristic
Operation accuracy
Start time
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite time mode ±1.0% of the set value or ±20 ms
Suppression of harmonics
4.4.4
Phase reversal protection PREVPTOC (ANSI 46R)
REX640
Technical Manual
Unit
Step
Unit
Step
ms
1
xIn
0.01
Values (Range)
0.00...100.00
0.00...999.99
1=on
2=blocked
3=test
4=test/blocked
5=off
Protection functions
Default
1=on
Default
20
0.10
Unit
%
%
Value
Depending on the frequency of the measured
current: f
±2 Hz
n
±2% of the set value
<70 ms
Typically 40 ms
Typically 0.96
<35 ms
DFT: -50 dB at f = n × f
, where n = 2, 3, 4, 5,...
n
Description
Operation Off / On
Description
Reset delay time
Minimum phase
current
Description
Ratio of start time / op-
erate time
Measured current ratio
I2 / I1
Status
837

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