Monitored Data; Technical Data; Positive-Sequence Undervoltage Protection Psptuv; Identification - ABB RELION REX640 Technical Manual

1MRS759142 C
4.5.5.9
4.5.5.10
4.5.6
4.5.6.1
REX640
Technical Manual

Monitored data

Table 752: NSPTOV Monitored data
Name Type
START_DUR FLOAT32
NSPTOV Enum

Technical data

Table 753: NSPTOV Technical data
Characteristic
Operation accuracy
1)2)
Start time
U
value
U
value
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite time mode
Suppression of harmonics
1) Negative-sequence voltage before fault = 0.0 × U
nominal frequency injected from random phase angle, results based on statistical distribution of 1000
measurements
2) Includes the delay of the signal output contact

Positive-sequence undervoltage protection PSPTUV

Identification

Function description
Positive-sequence undervoltage
protection
Values (Range)
0.00...100.00
1=on
2=blocked
3=test
4=test/blocked
5=off
Value
Depending on the frequency of the voltage
measured: f
±1.5% of the set value or ±0.002 × U
Minimum
Start
= 1.1 × set
33 ms
Fault
24 ms
= 2.0 × set Start
Fault
Typically 40 ms
Typically 0.96
<35 ms
±1.0% of the set value or ±20 ms
DFT: -50 dB at f = n × f
, f = 50 Hz, negative-sequence overvoltage with
n n
IEC 61850
identification
PSPTUV
Section 4
Protection functions
Unit Description
% Ratio of start time /
operate time
Status
n
Typical Maximum
35 ms 37 ms
26 ms 28 ms
, where n = 2, 3, 4, 5,...
n
IEC 60617 ANSI/IEEE C37.2
identification device number
U1< 27PS
n
795