Troubleshooting & Monitoring

Question 1

Your supervisor has made you aware of a turbine that has gone offline/out of operation. How do you go about troubleshooting?

Answer 1

• Log onto the turbine through VOT interface.
• Note alarm ID and refer to the “Alarms and Warnings” document.
• Gives information on fault I.e. Safety circuit/Control circuit/Devices.
• Refer to the Schematics and find the relevant circuit, giving information of devices, cabinets, RDSPP codes etc.
• Identify potential devices to test when on WTG and take spares.

Question 2

When on the turbine at a fault that you have previously investigated, what process would you follow to further identify the issue?

Answer 2

• Inspect the suspected area/circuit for obvious signs, such as…
  
  • Visual damage
  • Abnormal smells
  • Strange noises
  • Heat
• Depending on the device/circuitry, test it is getting voltage/flow when it should be.
• Test the device for manual operation.
• Test fuses/wiring for continuity.