ABB Relion 620 Series - Single-Phase Undervoltage Protection PHAPTUV

4.5.3.10 Technical data
Table 601: PHPTUV Technical data
Characteristic Value
Operation accuracy Depending on the frequency of the voltage measured: f
n
±2 Hz
±1.5% of the set value or ±0.002 × U
n
Start time , U
Fault
= 0.9 × set Start
value
Minimum Typical Maximum
62 ms
66 ms 70 ms
Reset time Typically 40 ms
Reset ratio Depends on the set Relative hysteresis
Retardation time <35 ms
Operate time accuracy in definite time mode ±1.0% of the set value or ±20 ms
Operate time accuracy in inverse time mode ±5.0% of the theoretical value or ±20 ms
Suppression of harmonics DFT: -50 dB at f = n × f
n
, where n = 2, 3, 4, 5,…
4.5.3.11 Technical revision history
Table 602: PHPTUV Technical revision history
Technical revision Change
B Step value changed from 0.05 to 0.01 for the
Time multiplier setting.
C Curve Sat relative max range widened from
3.0 to 10.0 % and default value changed from
2.0 to 0.0 %.
D Added setting Type of time reset .
4.5.4 Single-phase undervoltage protection PHAPTUV
4.5.4.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Single-phase undervoltage protec-
tion, secondary side
PHAPTUV U_A< 27_A
1
Start value = 1.0 × U
n
, Voltage before fault = 1.1 × U
n
, f
n
= 50 Hz, undervoltage in one phase-to-
phase with nominal frequency injected from random phase angle, results based on statistical
distribution of 1000 measurements
2
Includes the delay of the signal output contact
3
Minimum Start value = 0.50, Start value multiples in range of 0.90...0.20
1MRS757644 H Protection functions
620 series
Technical Manual
653