ABB Relion 620 Series - Thermal Overload Protection for Motors MPTTR

4.1.10.8 Monitored data
Table 362: PHPTUC Monitored data
Name Type Values (Range) Unit Description
START_DUR FLOAT32 0.00...100.00 % Ratio of start time / op-
erate time
PHPTUC Enum
1=on
2=blocked
3=test
4=test/blocked
5=off
Status
4.1.10.9 Technical data
Table 363: PHPTUC Technical data
Characteristic Value
Operation accuracy Depending on the frequency of the measured current and vol-
tages: f
n
±2 Hz
±1.5% of the set value or ± 0.002 × I
n
Start time Typically <55 ms
Reset time <40 ms
Reset ratio Typically 1.04
Retardation time <35 ms
Operate time accuracy in definite time mode mode ±1.0% of the set value or ±20 ms
4.1.11 Thermal overload protection for motors MPTTR
4.1.11.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Thermal overload protection for
motors
MPTTR 3Ith>M 49M
4.1.11.2 Function block
Figure 179: Function block
Protection functions
1MRS757644 H
362 620 series
Technical Manual