WTT Troubleshooting and Maintenance

Question 1

What is the first step in troubleshooting a malfunctioning wind turbine?

Accepted Answer

De-energize the turbine and lockout the electrical systems.

Answer

In any industrial troubleshooting scenario, especially with high-voltage machinery like wind turbines, safety is the absolute priority. The first step must always be to de-energize the turbine and implement lockout/tagout procedures on all electrical systems. This ensures that the turbine cannot accidentally start up or become energized while technicians are working on it, preventing serious injury or fatality.

Question 2

What should you do if the wind turbine is generating less power than expected?

Accepted Answer

Answer

If a wind turbine is generating less power than expected, a systematic diagnostic approach is required. The most appropriate action is to thoroughly inspect both the mechanical components (like the gearbox, bearings, and pitch system) and the electrical systems (such as the generator, inverter, and wiring). This comprehensive inspection helps identify the root cause of the underperformance, allowing for targeted and effective repairs.

Question 3

How often should you conduct maintenance on the turbine’s mechanical systems?

Accepted Answer

As recommended by the manufacturer, typically every 6 to 12 months.

Answer

The frequency of maintenance on a wind turbine's mechanical systems is primarily determined by the manufacturer's recommendations. These guidelines are based on extensive engineering and testing to ensure optimal performance, longevity, and safety. Typically, this involves routine inspections and servicing every 6 to 12 months to prevent failures and address wear and tear proactively.

Question 4

What should be checked when inspecting the wind turbine’s electrical system?

Accepted Answer

Wiring integrity, inverters, circuit breakers, and grounding.

Answer

When inspecting a wind turbine's electrical system, it's crucial to check all components involved in power generation and transmission. This includes verifying the integrity of all wiring for damage or loose connections, inspecting inverters for proper operation, checking circuit breakers for trips or faults, and ensuring proper grounding for safety and system stability. A thorough inspection of these elements helps prevent electrical failures and ensures efficient power output.

Question 5

What is a common issue when a wind turbine’s generator fails to start?

Accepted Answer

Electrical issues such as tripped breakers or wiring faults.

Answer

When a wind turbine's generator fails to start, the most common culprits are electrical issues. These can include tripped circuit breakers, which act as safety devices to prevent overloads, or wiring faults that interrupt the electrical circuit. A thorough check of the electrical connections, fuses, and breakers is usually the first step in diagnosing why the generator isn't initiating operation.

(WTT) Wind Turbine Technician Certification Practice Test

(WTT) Wind Turbine Technician Certification Practice Test

WTT Troubleshooting and Maintenance