Thermal Overload Protection, 1-Phase - Siemens SIPROTEC 5 Technical Data Manual

Technical Data

11.32 Thermal Overload Protection, 1-Phase

11.32 Thermal Overload Protection, 1-Phase
Setting Values/Increments for the Protection Stage
Threshold current
warning
Threshold thermal warn.
Dropout threshold operate
K-factor acc. to IEC 60225-149
Thermal time constant
Imax thermal
Temperature rise at Irated
Default temperature
Minimal temperature
Dropout Ratios
Tripping threshold (fixed at 100 %)
Thermal warning threshold
Current warning threshold
Frequency Range of the Input Signals
The function captures input signals up to the 50th harmonic.
Tolerances
With reference to k ⋅ I
With reference to the
operate time
1194
1 A @ 50 and 100 Irated
5 A @ 50 and 100 Irated
1 A @ 1.6 Irated
5 A @ 1.6 Irated
1 A @ 50 and 100 Irated
5 A @ 50 and 100 Irated
1 A @ 1.6 Irated
5 A @ 1.6 Irated
Up to 30th harmonic
rated
Up to 50th harmonic,
f = 50 Hz
rated
Up to 50th harmonic,
f = 60 Hz
rated
Up to 30th harmonic
0.030 A to 35.000 A
0.15 A to 175.00 A
0.001 A to 1.600 A
0.005 A to 8.000 A
50 % to 100 %
50 % to 99 %
0.10 to 4.00
10 s to 60 000 s
0.030 A to 10.000 A
0.15 A to 50.00 A
0.001 A to 1.600 A
0.005 A to 8.000 A
40 K to 200 K
-55°C to 55°C
-55°C to 40°C
Dropout if value drops below operate indication
dropout threshold
About 0.99 of the setting value
About 0.95 of the setting value
2 % or 10 mA ( I = 1 A)
rated
or 50 mA ( I = 5 A),
rated
2 % class acc. to IEC 60255-149
4 % or 20 mA ( I = 1 A)
rated
or 100 mA ( I = 5 A),
rated
4 % class acc. to IEC 60255-149
5 % or 25 mA ( I = 1 A)
rated
or 125 mA ( I = 5 A),
rated
5 % class acc. to IEC 60255-149
3 % or 1 s for I/(k ⋅ I ) > 1.25,
rated
3 % class acc. to IEC 60255-149
SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-A, Edition 05.2018
Increments of 0.001 A
Increments of 0.01 A
Increments of 0.001 A
Increments of 0.001 A
Increments of 1 %
Increments of 1 %
Increments of 0.01
Increments of 1 s
Increments of 0.001 A
Increments of 0.01 A
Increments of 0.001 A
Increments of 0.001 A
Increments of 1 K
Increments of 1°C
Increments of 1°C