Preservation of large motors and generators from weather on offshore platforms

The problems encountered with moisture condensation in the bearing cavities and internal windings of large motors and generators when proper equipment storage procedures are not practiced are outlined. The moisture condensation problems associated with the operation and shutdown of large motors and generators due to weather conditions at the site location of the offshore platforms are also discussed. The particular platforms discussed are located on the outer continent shelf in the Santa Barbara Channel off the coast of California. On-site modification of the generator housing and the electrical module was necessary to preserve the electrical equipment from the effects of the weather. The recommended method of preservation and the necessary precautions before the startup of the electrical machines are presented