4.10.10 Technical data
Table 1043: STTPMSU Technical data
Characteristic Value
Operation accuracy Depending on the frequency of the measured
current: f
n
±2 Hz
±1.5 % of the set value or ±0.002 × I
n
Start time
1, 2
Minimum Typical Maximum
I
Fault
= 1.1 × set
Start
detection A
27 ms 30 ms 34 ms
Operate time accuracy ±1.0 % of the set value or ±20 ms
Reset ratio Typically 0.90
4.10.11 Technical revision history
Table 1044: STTPMSU Technical revision history
Product
connectivi
ty level
Technical
revision
Change
PCL4 E Setting
Motor standstill A
minimum value changed from 0.05xIn
to 0.01xIn.
4.11 Multipurpose protection MAPGAPC (ANSI MAP)
4.11.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Multipurpose protection MAPGAPC MAP MAP
1
Current before = 0.0 × I
n
, f
n
= 50 Hz, overcurrent in one phase, results based on statistical
distribution of 1000 measurements
2
Includes the delay of the signal output contact
1MRS759142 F Protection functions
REX640
Technical Manual
1105
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