DEEP SEA ELECTRONICS DSE8610 MKII Operator's Manual page 214

Adjustment of Governor SW2
NOTE: If it is not possible to achieve ±2.5 Hz adjustment with the governor, contact DSE
Technical Support for further advice: support@deepseaelectronics.com
10. Increase the setting of the Nominal Frequency by 2.5 Hz (52.5 Hz or 62.5 Hz).
If Frequency Droop is enabled, increase the Nominal Frequency by the Maximum Frequency
Difference From Nominal (Max Hz Up) within the Droop Curve. For example, if the Droop Curve
is 52 Hz down to 49 Hz, increase the Nominal Frequency by 2 Hz.
11. Start the generator. With the breaker open the generator will run at setting of SW1 (50 Hz or 60
Hz).
12. Once the generator is detected as available, close the generator breaker onto a DEAD BUS BAR
WITH NO LOADS connected. The generator frequency shall start to increase towards the new
Nominal Frequency setting (52.5 Hz or 62.5 Hz or Max Hz Up), however it may not achieve this.
13. Adjust SW2 until the frequency increases to the new Nominal Frequency (52.5 Hz or 62.5 Hz or
Max Hz Up).
14. Keep adjusting SW2 further to ensure Governor Drive reads between 75% to 85%, the sign of the
drive (+ or - percentage) does not matter. If the Governor Drive is between 100% and 85%,
increase the SW2 setting until the Governor Drive reads ideally 80%. If the Governor Drive is
between 75% and 0%, decrease the SW2 setting until the Governor Drive reads ideally 80%.
15. Open the generator breaker and stop the generator.
16. Decrease the setting of the Nominal Frequency by 2.5 Hz (47.5 Hz or 57.5 Hz). If Frequency Droop
is enabled, decrease the Nominal Frequency by the Maximum Frequency Difference From
Nominal (Max Hz Down) within the Droop Curve. For example, if the Droop Curve is 52 Hz down
to 49 Hz, decrease the Nominal Frequency by 2 Hz.
17. Start the generator. With the breaker open the generator will run at setting of SW1 (50 Hz or 60
Hz).
18. Once the generator is detected as available, close the generator breaker onto a DEAD BUS BAR
WITH NO LOADS connected. The generator frequency shall start to decrease towards the new
Nominal Frequency (47.5 Hz or 57.5 Hz or Max Hz Down).
19. SW2 is then adjusted further to ensure Governor Drive reads within 75% to 85%, the sign of the
drive (+ or - percentage) does not matter. If the Governor Drive is between 100% and 85%,
increase the SW2 setting until the Governor Drive reads ideally 80%. If the Governor Drive is
between 75% and 0%, decrease the SW2 setting until the Governor Drive reads ideally 80%.
NOTE: Any change made to the driving down percentage will be made to the driving up
percentage. For example, if the driving down percentage is increased by 5% (70% to 75%), the
driving up percentage will also increase by 5% (80% to 85%).
20. Change the setting of the Nominal Frequency back to the actual Nominal Frequency (50 Hz or 60
Hz).
057-254 ISSUE: 10
Commissioning
Page 214 of 246