Name Type Values (Range) Unit Description
EFF_ST_VAL_C FLOAT32 0.00...50.00 xIn Effective start
value for phase C
PHPVOC Enum
1=on
2=blocked
3=test
4=test/blocked
5=off
Status
4.1.5.9 Technical data
Table 322: PHPVOC Technical data
Characteristic Value
Operation accuracy Depending on the frequency of the measured current and
voltage:
f
n
±2 Hz
Current:
±1.5% of the set value or ± 0.002 × I
n
Voltage:
±1.5% of the set value or ±0.002 × U
n
Start time ,
2
Typically 26 ms
Reset time Typically 40 ms
Reset ratio Typically 0.96
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 set value or ±20 ms
Suppression of harmonics -50 dB at f = n × f
n
, where n = 2, 3, 4, 5,…
4.1.6 Three-phase thermal protection for feeders, cables and
distribution transformers T1PTTR
4.1.6.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Three-phase thermal protection for
feeders, cables and distribution
transformers
T1PTTR 3Ith>F 49F
1
Measurement mode
= default, current before fault = 0.0 × I
n
, f
n
= 50 Hz, fault current in one
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
Protection functions 1MRS757644 H
336 620 series
Technical Manual
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