Caterpillar — Parallel Operation - Frequency Adjustment
Adjustments · Governor
From a Caterpillar owner's manual covering: 7C-1000, 9Y-1300, 9Y-1400, SR4. Check it applies to your exact model before use.
Applies to: Caterpillar SR4
Procedure
- Allow each electric set to run under load (about 30 minutes).
- Adjust the governor control to give rated frequency at full load.
- Remove the load and check the high idle speed; it should be approximately 2 to 5% above full load speed (for governors equipped with droop).
- For the most consistent results, repeat steps 2 and 3 until condition 2 of Initial Start-up has been met.
Specs & values
- High idle speed approximately 2 to 5% above full load speed
Source: Caterpillar owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.