Linz electric ALUMEN Mode D'emploi Et D'entretien page 13

FAULT CAUSE
Low voltage with 1) Too low drive engine RPM
no-load
2) Faulty rectifying diode bridge
3) Capacitor with low capacitance
4) Winding fault
High voltage 1) Capacitor with too high capacitance
with no-load
2) Too high drive engine RPM
Alternator does 1) Too low drive engine RPM
not excite
2) Connection failure
3) Capacitor failure
4) Windings failure
5) Rectifying diode bridge failure
Correct voltage 1) Rectifying diode bridge failure
with no-load but
2) Low revolving speed at full load
too low voltage
3) Load is too high
on load
4) Load PF is too low
Noisy working 1) Bad coupling
2) Short circuit in windings or load
3) Faulty bearing
Unstable voltage 1) Uneven engine rotation
2) Poor contact within connections
3) Irregular load
ACTION
1) Reset nominal speed for drive engine
2) Replace rectifying diode bridge
3) Increase capacitor' s capacitance
4) Check resistance and replace damaged part
1) Reduce capacitor' s capacitance
2) Reset nominal speed for drive engine
1) Reset nominal speed for drive engine
2) Check wiring diagram and reset correct connections
3) Replace capacitor
4) Check winding resistance and replace damaged part
5) Replace rectifying diode bridge
1) Replace rectifying diode bridge
2) Adjust governor control to nominal speed
3) Reduce current supplied
4) Wire a capacitor in parallel with the lowest PF load
1) Check and correct coupling
2) Check windings and loads, and change faulty ones
3) Replace faulty bearing
1) Check drive engine and fix
2) Check and tighten faulty connections
3) Check loads and remove irregular one
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