Siemens SENTRON - Page 75

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Page 46 Figure 16: Surge current characteristic 8/20 μs
Page 47 Figure 17: Circuit with a SIQUENCE universal current-sensitive
RCCB and a frequency converter
Page 48 Figure 18: Residual current waveform at fault location 1
Figure 19: Residual current waveform at fault location 2
Page 49 Figure 20: Pre-magnetization due to DC residual current
Page 50 Figure 21: Residual current waveform at fault location 3
Page 51 Figure 22: Frequency components in the residual current based
on the example of a frequency converter
Page 52 Figure 23: Conguration example with Type A and B residual
current protective devices
Page 58 Figure 24: Troubleshooting  owchart
Page 59 Figure 25: 4-pole RCCB in a 3-pole network
Page 66 Figure A1: TN-S system
Figure A2: TN-C-S system
Page 67 Figure A3: TN-C system
Figure A4: TT system
Page 68 Table A1: Maximum permissible grounding resistances as a
function of I
Δn
Page 69 Figure A5: IT system
Page 70 Figure A6: Residual current protective devices in all network
systems