Kemppi MinarcTig 180MLP - Power Semiconductor Testing

20
Power semiconductor testing and replacing
A separate discrete-IGBTs can be tested only when disconnected
from the board with IGBT-tester.
When replacing damaged IGBTs, the whole set has to be
replaced, including gate resistors!!
Discrete-IGBT and secondary diodes tightening torque to the heat
sink is 0,6…1,2 Nm.
GCE
I
G
B
T
-
T
E
S
T
E
R
T
R
1
T
R
2
C
O
N
T
R
O
L
O
F
F
O
N
B2/6
C2E1/1
E
2
/
2
C
1
/
3
B1/4