7 min read
Low voltage may come from excessive load, low engine speed, AVR problems, wrong sensing wiring or alternator excitation issues.
Check frequency first. If frequency is low, the engine speed or load may be the root cause. If frequency is normal, move to AVR and alternator checks.
Do not adjust AVR blindly. Record the voltage, frequency, load and alarm status before changing settings.
Liste de contrôle
- Check frequency
- Reduce load
- Inspect AVR wiring
- Measure sensing voltage
- Record readings