Load Side Components; Line Fuses - Siemens SINAMICS G130 Engineering Manual

The following table specifies the rms values of the line currents which occur at the beginning of the precharging
process in the case of line supply voltages 400 V or 690 V. Where other line voltage values apply, the values must be
converted in proportion to the line voltage.
The specified precharging currents decay in accordance with an e-function until the precharging process is
completed after a period of typically 1 to 2 s. Due to the temperature rise in the precharging resistors during the
process, the minimum permissible interval for complete precharging of the DC link is 3 minutes.
Power rating of S150
at
400 V or 690 V
[kW]
380 V – 480 V 3AC
110 kW
132 kW
160 kW
200 kW
250 kW
315 kW
400 kW
450 kW
560 kW
710 kW
800 kW
500 V – 690 V 3AC
75 kW
90 kW
110 kW
132 kW
160 kW
200 kW
250 kW
315 kW
400 kW
450 kW
560 kW
710 kW
800 kW
900 kW
1000 kW
1200 kW
SINAMICS S150 converter cabinet units: Line currents at the beginning of precharging (initial rms values)

8.6 Load side components

8.6.1

Line fuses

The use of combined fuses (3NE1..., class gS) is recommended in order to limit the extent of damage in the event of
a serious component defect in the converter. These fuses have the following properties:
·
Quick-acting
·
Low arc voltage
·
Effective current limiting.
Rated output Line current at the beginning of DC link
current precharging (initial rms value)
[A]
210 A
260 A
310 A
380 A
490 A
605 A
745 A
840 A
985 A
1260 A
1405 A
85 A
100 A
120 A
150 A
175 A
215 A
260 A
330 A
410 A
465 A
575 A
735 A
810 A
910 A
1025 A
1270 A
Engineering Information
at 400 V or 690 V
[A]
29 A
29 A
59 A
59 A
59 A
91 A
91 A
91 A
182 A
182 A
182 A
29 A
29 A
29 A
29 A
58 A
58 A
58 A
58 A
86 A
86 A
86 A
172 A
172 A
172 A
172 A
172 A
SINAMICS Engineering Manual – November 2015
SINAMICS S150
489/528
Ó Siemens AG