Form wound coils for severe environments

As you can see from the foregoing data, the state of the art for making sealed coils has progressed. The latest techniques have been significant from the standpoint of providing low cost and high quality methods of producing sealed windings. As to what technique is the best, a valid case can be developed for each, primarily because of the various types of processing equipment available at the time of manufacture. It is our belief that the sealable armor/mica system has great potential for field servicing of windings for protection against severe environmental conditions. It can be processed with a minimum amount of equipment and skill, while at the same time providing a seal equivalent to or better than other known techniques. For the future, it is expected that the technology of sealing coils with fusable tapes will continue to be developed even further, with special emphasis on primary insulation as well.