🔍 Key Concepts

• Isochronous speed control in engine governors • Relationship between speed droop and load sharing between generators • How governor speed changes (or doesn’t) from no-load to full-load

💭 Think About

• Think about what an isochronous governor is trying to keep constant as the load on the engine changes. • For each type of speed droop listed, ask: does engine speed stay exactly the same, increase, or decrease as load goes from no-load to full-load? • Consider which option would be best (or worst) for paralleling multiple generators and sharing load between them.

✅ Before You Answer

• Be clear on the definition of speed droop: percent change in speed between no‑load and full‑load at a fixed governor setting. • Identify which option describes no change in speed from no‑load to full‑load. • Confirm which speed characteristic is normally used for single unit operation versus parallel operation.