Siemens 6MD85, Manual

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Thermal Overload Protection, 3-Phase – Advanced
Setting Value for the Function Block Filter
h(0) -100.000 to 100.000 Increments of 0.001
h(1) -100.000 to 100.000 Increments of 0.001
h(2) -100.000 to 100.000 Increments of 0.001
h(3) -100.000 to 100.000 Increments of 0.001
h(4) -100.000 to 100.000 Increments of 0.001
Setting Values/Increments for the Protection Stage
Threshold current
warning 1 A @ 50 and 100 Irated 0.030 A to 35.000 A Increments of 0.001 A
5 A @ 50 and 100 Irated 0.15 A to 175.00 A Increments of 0.01 A
1 A @ 1.6 Irated 0.001 A to 1.600 A Increments of 0.001 A
5 A @ 1.6 Irated 0.005 A to 8.000 A Increments of 0.001 A
Threshold thermal warn. 50 % to 100 % Increments of 1 %
Dropout threshold operate 50 % to 99 % Increments of 1 %
Emerg. start T overtravel 0 s to 15 000 s Increments of 10 s
K-factor acc. to IEC 60225-8 0.10 to 4.00 Increments of 0.01
Thermal time constant 10 s to 60 000 s Increments of 1 s
Cooling time constant 10 s to 60 000 s Increments of 1 s
Imax thermal 1 A @ 50 and 100 Irated 0.030 A to 10.000 A Increments of 0.001 A
5 A @ 50 and 100 Irated 0.15 A to 50.00 A Increments of 0.01 A
1 A @ 1.6 Irated 0.001 A to 1.600 A Increments of 0.001 A
5 A @ 1.6 Irated 0.005 A to 8.000 A Increments of 0.001 A
Imin cooling 1 A @ 50 and 100 Irated 0.000 A to 10.000 A Increments of 0.001 A
5 A @ 50 and 100 Irated 0.00 A to 50.00 A Increments of 0.01 A
1 A @ 1.6 Irated 0.000 A to 1.600 A Increments of 0.001 A
5 A @ 1.6 Irated 0.000 A to 8.000 A Increments of 0.001 A
Temperature rise at Irated 40 K to 200 K Increments of 1 K
Default temperature -55°C to 55°C Increments of 1°C
Minimal temperature -55°C to 40°C Increments of 1°C
Dropout Ratios
Tripping threshold (fixed at 100 %) Dropout if value drops below operate indication
dropout threshold
Thermal warning threshold About 0.99 of the setting value
Current warning threshold About 0.95 of the setting value
Frequency Range of the Input Signals
The function captures input signals up to the 50th harmonic.
11.31
Technical Data
11.31 Thermal Overload Protection, 3-Phase – Advanced
1172 SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017