ABB RELION REX640 Technical Manual page 866

Protection functions
4.5.2.11 Technical data
Table 801: PHPTUV Technical data
Characteristic
Operation accuracy
Start time
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite
time mode
Operate time accuracy in inverse
time mode
Suppression of harmonics
4.5.2.12 Technical revision history
Table 802: PHPTUV Technical revision history
Product connectivity
level
PCL4
4.5.3 Residual overvoltage protection ROVPTOV (ANSI 59G/
59N)
4.5.3.1 Identification
Function description
Residual overvoltage protection
1
Start value = 0.97 × U
to-phase voltage injected from random phase angle, results based on statistical distribution of
1000 measurements, includes the delay (≈0ms) of the static signal output (SSO) contact
2
Start time is accelerated when set
shorter the start time. Here measurements done for
3 Operate delay time ≥ 60ms or inverse time curve selected
Valid when set
4 Start value = 0.50, Start value multiples in range of 0.90...0.20
Minimum
866
U = 0.85 × set
Fault
1, 2
Start value
U = 0.85 × set
Fault
1, 3
Start value
Technical revision
F
, voltage level before fault = 1 × U
n
Operate delay time < 60ms. The shorter the set delay, the
Value
Depending on the frequency of the voltage measured:
f ±2 Hz
n
±1.5% of the set value or ±0.002 × U
Minimum
17 ms
51 ms
Typically 40 ms
Relative hysteresis
Depends on the set
<35 ms
±1.0% of the set value or ±20 ms
±5.0% of the theoretical value or ±20 ms
DFT: -50 dB at f = n × f , where n = 2, 3, 4, 5,...
n
Change
New minimum value 20 ms for
time and Minimum operate time settings
IEC 61850 IEC 60617
identification identification
ROVPTOV Uo>
, f = 50 Hz, undervoltage in one phase-
n n
Operate delay time = 20ms
1MRS759142 F
n
Typical Maximum
20 ms 23 ms
55 ms 58 ms
4
Operate delay
ANSI/IEEE C37.2
device number
59G/59N
REX640
Technical Manual