Question

Prepare preventive maintenance schedule for SWT related to i) Oiling and greasing ii) Electronic equipment iii) Towers

Answer 1

Preventive maintenance schedule for SWT:

I. Oiling and greasing:

1) Checking geared motor oil, greasing, lubrication and maintenance of drive train.

2) Changing oil, belts, bearing lubrication.

3) Regular maintenance includes gearbox oil changes and it protects components from wear.

4) Oil used for wind turbine should resist water contamination.

5) Oiling and greasing at regular intervals will provide gear and bearing protection.

6) Condition monitoring has to be performed to overcome the challenges like rust corrosion foam formation, water contamination, filterability etc.

II.Preventive maintenance schedule Electronic equipment.

1) Every 12 months, visual check of the bus capacitor and power equipment should be made, looking for possible defective areas.

2) Every 12 months checking of harmonic filter, EMC filter etc.

3) Every 6 months converter, UPS operation should be checked.

III. Preventive maintenance schedule for Towers

1) Visual check out for concrete base foundation, its clearance, ladder and life line fastening.

2) Visual check out for tower cleaning, joint bolt between foundation and tower.

3) Every 6 months inspection for loop condition, safety norms, tower surface.