1. Tipped fan bracket, check all parts
2. Replace bearings
3. Examination to exclude
Significantl
y reduced
rotor speed
1. Generator stator and rotor friction
2. Stator winding short circuit or output
short circuit
3. Switch is in the down position controller
1. Replace bearing
2. Short positions will be insulated
3. Power switch set to the position
controller
Generator
output
voltage is
low
1. Motor speed low
2. Three-phase short circuit in stator
winding
3. Controller circuit
4. Low-voltage transmission line is too
long or too small
1. Identify the reasons for return to
positive production speed
2. Short positions will be insulated
3. Replace controller
4. Shorten lines, bold diameter
No output
generator
AC line
1. Identify the reasons, turn circuit
1. DC blown fuse
2. Output line circuit
3. Controller rectifier damage