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9.0 Wind Turbine Operation
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
80
9.3.6 Speed 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).
9.3.7 Normal 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.
9.3.8 Emergency 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.
9.3.9 Low 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.
9.4 Environmental 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.