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Installation, operation and maintenance instructions
High voltage flameproof motors for explosive atmosphere
AMD Rg 355-400-450-500
Operating faults – Trouble shooting information for Squirrel Cage Induction
motors
Early identification of abnormal operation symptoms and rapid remedial action are essential as a means
of preventing minor fault from developing into really serious trouble later on.
The following trouble-shooting flow-charts may help you to trace and remedy possible faults.
Always disconnect the motor from the mains before you attempt to trace a fault or attend to the
stator switch.
A)
Faults at starting
Sheet No.
3AAM101036 E
Rev. B
01.2023
1 of 8
Page
Issued by: MOLM
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