Field of Application
Spacing elements are used to separate the high voltage from the low voltage winding as well as within the winding where they form cooling channels. The result of the different characteristics required, depending on the size of the equipment, is a variety of products that were developed to serve the purpose. These products are clackband, corrugated paper, duct strip, ladders, strips and spacers.
Clackband is made of small parts of Nomex® 994 strips individually welded to a carriertape of Nomex® 410 or E56 paper.
Duct strip is made by welding Nomex® 994 strips in a regular distance to Nomex® 410 or E56 paper of usually the same width as the strips.
Ladders are made by welding Nomex® 994 strips in a regular distance to two or more supporting Nomex® 410 or E56 paper tapes.
Strips are made of Nomex® 994 and are produced in rectangular, bevel key, or T-form shapes.
Depending on the application and the thickness of Nomex® 994 spacers are either milled or punched.