9.0 Wind Turbine Operation

80

9.3.6Speed Sensor Signal Test

1.Perform a rotor jog.

2.Measure the output voltage from the frequency to voltage converter. It should be approximately 3.75 VDC (50 Hz) or 4.5 VDC (60 Hz).

9.3.7Normal Start-up/Shut-down Test

1.In 5.4 - 9 m/s (12 - 20 mph) winds, turn the turbine switch to ON.

2.The rotor should accelerate and the main contactor should close.

3.Turn the turbine switch to OFF.

4.When the tip brakes release, the turbine should come to a complete stop and de-energize.

9.3.8Emergency Shut down Test

1.In 5.4 - 9 m/s (12 - 20 mph) winds, turn the turbine switch to ON.

2.The rotor should accelerate and the main contactor should close.

3.Depress the emergency stop button.

4.When the tip brakes release, the turbine should come to a complete stop and de-energize.

9.3.9Low Wind Shut Down Test

1.In 5.4 - 9 m/s (12 - 20 mph) winds, turn the turbine switch to ON.

2.The rotor should accelerate and the main contactor should close.

3.Observe shut down when wind speeds fall below 5.4 m/s (12 mph). If necessary, an AOC representative can simulate low wind speed electronically.

4.The tip brakes should release and the wind turbine should come to a complete stop and de-energize.

9.4Environmental Considerations

The following sections identify environmental considerations associated with the operation and maintenance of the AOC 15/50.

9.4.1 Corrosion

The primary source of corrosion is salt air, which is prevalent in marine environments and is particularly critical when combined with warm temperatures. A secondary source of corrosion, with more subtle symptoms, consists of airborne pollution, such as acid rain and industrial pollutants.

NOTICE: Use of the material contained in this document is subject to the warning on page Iv and the disclaimer on page v of this document.

DOC012R02

AOC 15/50 User Manual

Nov 2001

Page 88
Image 88
AOC 15 Speed Sensor Signal Test, Normal Start-up/Shut-down Test, Emergency Shut down Test, Low Wind Shut Down Test