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19
EN-US
Criteria for the Proper Selection of String Fuses
Criteria for the
Proper Selec-
tion of String
Fuses
The following criteria must be fulfilled for each solar module string when
using fuse protection:
-
I
N
> 1.8 x I
SC
-
I
N
< 2.4 x I
SC
-
V
N
>/= max. input voltage of inverter being used:
FRONIUS CL 36.0 / 48.0 / 60.0 ........... 600 V DC
-
Fuse dimensions: Diameter 10 x 38 mm
I
N
......... Nominal current rating of fuse
I
SC
....... Short circuit current for standard test conditions (STC) according
to solar module data sheet
V
N
....... Nominal voltage rating of fuse
NOTE
The nominal current value of the fuse must not exceed the
maximum fuse protection value specified in the solar module
manufacturer’s datasheet. If a maximum fuse protection value is
not specified, please request it from the solar module manufactu-
rer.
Effects of
Using Under-
rated Fuses
If a fuse is underrated, the nominal current value of the fuse can be less
than the short circuit current of the solar module.
Effect:
The fuse may blow under intensive lighting conditions.
Fuse Recom-
mendations
NOTE
Only select fuses whose nominal voltage is higher or
equal to the max. input voltage of the inverter being used.
You should only use the following fuses, which have been tested by Froni-
us, to ensure problem-free fuse protection:
-
Littelfuse KLKD fuses
Fronius shall not be liable for any damage or other incidents resulting
from the use of other fuses. In addition, all warranty claims are forfeited.
General
The use of string fuses in the Fronius String Control 250/25 DCD DF also
adds fuse protection to the solar modules.
A crucial factor for the fuse protection of solar modules is the maximum
short circuit current I
SC
of the respective solar module.
Содержание String Control 250/ 25 DCD DF
Страница 2: ......
Страница 4: ......
Страница 50: ...40...
Страница 54: ......
Страница 98: ...40...
Страница 102: ......
Страница 149: ...ud_fr_st_et_01482 012007 ZH...
Страница 150: ......
Страница 151: ...ud_fr_se_sv_01483 012012 I ZH...
Страница 152: ...ud_fr_se_sv_01483 012012 II...
Страница 153: ...ud_fr_se_sv_01483 012012 III ZH...
Страница 154: ...ud_fr_se_sv_01483 012012 IV...
Страница 155: ...1 ZH...
Страница 156: ...2...
Страница 157: ...3 ZH...
Страница 158: ...4...
Страница 159: ...5 ZH...
Страница 160: ...6...
Страница 161: ...7 ZH 1 2 3 4 5 6 7 8 9 10 11 12 19 13 17 14 15 16 18 20 21 22 23 24 25 26 27 28 29 1XX 0XX...
Страница 162: ...8...
Страница 163: ...9 ZH...
Страница 164: ...10...
Страница 165: ...11 ZH 3 2 3 4 4 x 1 4 1 2 3 x 4 5 3 2 1 2 4 3 1 2 1 1 3 5 4...
Страница 166: ...12 31 35 32 33 34 54 26 25 1 2 3 4 27 5 6 28 29 30 M16 M32 M40 M32 M40 M16 M20 M25 1 1 1 1 1 OFF ON...
Страница 167: ...13 ZH 1 1 2 3...
Страница 168: ...14...
Страница 170: ...16 3 10mm 1 2 5 3 4 A B 2 5 10mm 1 2 4 3 A B 1 3 1 1 2 3 4...
Страница 171: ...17 ZH 4 3 2 4 5 6 1 3 3 2 4 5 6 1 2 1 2 1 2 1 1 2 M12 M12 3 4 M12 M12...
Страница 172: ...18...
Страница 173: ...19 ZH...
Страница 174: ...20...
Страница 175: ...21 ZH 2 1 1 1 2 1 2 1 Strang...
Страница 176: ...22...
Страница 177: ...23 ZH Line ISDN OUT IN OUT IN OUT IN...
Страница 178: ...24 4 2 1 3 3 1 3 DATCO M IN DATCO M O UT 2 2 IN OUT 1 2 1 3 1 2...
Страница 179: ...25 ZH 3 10mm 1 2 2 1...
Страница 180: ...26 5 1 4 4 3 6 5 OUT IN 2 1 IN OUT 12 V GND TX RX RX TX GND 12 V 12 V GND RX TX TX RX GND 12 V...
Страница 181: ...27 ZH 1 2...
Страница 182: ...28 1 2...
Страница 183: ...29 ZH...
Страница 184: ...30...
Страница 185: ...31 ZH 6 1 5 1...
Страница 186: ...32 1XX 0XX 0XX 1XX 0XX 1XX 0XX 1XX 0 1 0 3 7 0 2 3 1 2 3 1...
Страница 187: ...33 ZH 1 4 3 3 4 2 1 1 OFF ON 1 1 1 1...
Страница 188: ...34 1 2 3...
Страница 189: ...35 ZH...
Страница 190: ...36...
Страница 191: ...37 ZH 1...
Страница 192: ...38...
Страница 193: ...39 ZH 1 1 1 2 2 2 1 2 1 2...
Страница 194: ...40...