5SDD 71B0200
Current load capacity, cont.
(
)
ID vs. ED, 1000 Hz square-wave, Th = 60 °C
ID
k
A
22
20
18
16
14
12
10
n =
50 pulses
n = 100 pulses
n = 500 pulses
n = 1000 pulses
1
10
Duty cycle ED (%) 100
Fig. 6 DC-output current with single-phase centre tap
ID
-
+
Fig. 7
Fig. 8 Definition of ID for single-phase centre tap
Definition of ED for typical welding
sequence
ABB Switzerland Ltd, Semiconductors reserves the right to change specifications without notice.
Doc. No. 5SYA1132-02 July 06
ABB Switzerland Ltd
Semiconductors
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