Generator frequency is unstable or fluctuates under steady load

Safety first: Monitor frequency and voltage with appropriate instruments. Avoid connecting sensitive equipment until stability is restored.

• Check fuel system: Ensure filters are clean and there is no air in the fuel lines.
• Inspect governor linkage: On mechanical systems, lubricate and free any stiff joints. Ensure return springs are intact.
• Stabilize load: If large motor loads are cycling on and off, consider staggering their start times or using soft starters.
• Adjust governor (advanced): Electronic governor parameters (gain, stability) should be adjusted only by trained personnel using the correct tools and manuals.