ABB RELION Series, Техническое руководство

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4.4.2.9 Monitored data
Table 429: PHPTUV Monitored data
Name Type Values (Range) Unit Description
START_DUR FLOAT32 0.00...100.00 % Ratio of start time /
operate time
PHPTUV Enum 1=on
2=blocked
3=test
4=test/blocked
5=off
Status
4.4.2.10 Technical data
Table 430: 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
1)2)
Minimum Typical Maximum
U
Fault
= 0.9 × set Start
value
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 3)
Suppression of harmonics DFT: -50 dB at f = n × f
n
, where n = 2, 3, 4, 5,…
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
4.4.2.11 Technical revision history
Table 431: 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.
1MRS758755 A
Section 4
Protection functions
REC615 and RER615 421
Technical Manual