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Catastrophic Failure in Fanuc Power Supply

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kpsig

kpsig

Electrical
Joined
Nov 21, 2001
Messages
15
Location
GR
Electronics: Series O
Problem: Catastrophic Failure on transistor Modules of Power Supply
Solution (?): Replacement of Transistor, driving resistors, capacitor, alpha module, . Transistor (IGBT PHT) blown again.
How do we check regenerartive resistors?
Any ideas?
 
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