Trouble Shooting - Linz electric SL Série Mode D'emploi Et D'entretien

13. TROUBLE SHOOTING FOR SL SERIES
FAULT CAUSE
The alternator does not
excite
Low no load voltage
Correct no-load voltage but
too low at load condition
Correct no-load voltage but
too high at load condition
Unstable voltage
Noisy
- 20 -
1) Insufficient residual voltage
2) Connection break
3) Broken rotating diode bridge
4) Insufficient speed
5) Windings failure
6) Broken voltage regulator
1) Low speed
2) Winding failure
3) Broken rotating diode bridge
4) Broken voltage regulator
5) Wrong voltage regulator setting
1) Low speed with load
2) Broken voltage regulator
3) Defective rotor winding
4) Load is too high
5) Wrong overload protection setting
1) Appliances with capacitors on the load
2) Broken voltage regulator
3) Wrong phase connection
1) Rotating mass is too small
2) Uneven speed
3) Wrong stability control setting
1) Wrong coupling
2) Short circuit in a winding or on load
3) Faulty bearing
SOLUTION
1) Excite the exciter stator using a battery
2) Reset the connection
3) Replace rotating diode bridge
4) Adjust speed regulator of the engine
5) Check winding resistance and replace damaged parts
6) Replace voltage regulator
1) Reset engine to nominal speed
2) Check winding resistance and replace damaged parts
3) Replace rotating diode bridge
4) Replace voltage regulator
5) Adjust VG trimmer of voltage regulator
1) Adjust engine rotation speed
2) Replace voltage regulator
3) Check winding resistance and replace damaged parts
4) Reduce the load
5) Adjust OL trimmer of voltage regulator
1) Reduce capacitive load
2) Replace voltage regulator
3) Check and reset the phase connection
1) Increase the flywheel of the primary engine
2) Check and repair speed regulator of the engine
3) Adjust ST trimmer of voltage regulator
1) Check and correct coupling
2) Check windings and load
3) Replace faulty bearing