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Chapter 8 - Troubleshooting & Maintenance
8-8
Figure 5 - Megger test
8.5.5 Parts Replacements
The life expectancy of a part depends on the type of part, the environment, and operating conditions. Parts should be
replaced as shown below. When the internal fuse is opened the IGBT should be checked thoroughly before replacing the
fuse. Contact the factory for fuse replacement information.
Part name Standard period for replacement Comments
Cooling fan 2~3 years Exchange for a new part
Smoothing
capacitor
5 years Exchange for a new part
Other parts - Determine after checking
R
S
T
Ground
DC 500V Meggar
U
V
W