Settings; Monitored Data; Technical Data - ABB RELION REX640 Technical Manual

Section 4
Protection functions
4.1.7.8
Table 427: LOFLPTUC Group settings (Basic)
Parameter
Start value low
Start value high
Operate delay time
Table 428: LOFLPTUC Non group settings (Basic)
Parameter
Operation
Table 429: LOFLPTUC Non group settings (Advanced)
Parameter
Reset delay time
4.1.7.9
4.1.7.10
382

Settings

Values (Range) Unit
0.01...0.50 xIn
0.01...1.00 xIn
400...600000 ms
Values (Range) Unit
1=on
5=off
Values (Range) Unit
0...60000 ms

Monitored data

Table 430: LOFLPTUC Monitored data
Name
START_DUR
LOFLPTUC

Technical data

Table 431: LOFLPTUC Technical data
Characteristic
Operation accuracy
Start time
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite time mode
Step Default
0.01 0.10
0.01 0.50
10 2000
Step Default
1=on
Step Default
1 20
Type Values (Range)
FLOAT32 0.00...100.00
Enum 1=on
2=blocked
3=test
4=test/blocked
5=off
Value
Depending on the frequency of the measured
current: f
±1.5% of the set value or ±0.002 × I
Typically 300 ms
Typically 40 ms
Typically 1.04
<35 ms
±1.0% of the set value or ±20 ms
1MRS759142 C
Description
Current setting/Start value low
Current setting/Start value high
Operate delay time
Description
Operation Off / On
Description
Reset delay time
Unit Description
% Ratio of start time /
operate time
Status
±2 Hz
n
n
Technical Manual
REX640