Stoneridge Engineering Home |
Magnet wire is made to withstand higher operating temperatures than house wire. For example, class H polyester-imide insulated magnet wire is made to withstand 180C (356F), and some types of magnet wire are made to withstand 220 C. If you decide to use magnet wire, get "double build" (two layers of insulation). High temperature magnet wire provides you with greater design margin particularly for the innermost turns that may otherwise overheat under heavy use. Using layers of paper or tape are not mandatory, but they may make winding even layers a bit easier. If you are careful and wind each layer tightly, you don't need any interlayer material. Although you could epoxy the winding, most of the vibration will actually come from the laminations. Many transformer manufacturers use varnish to "glue" laminations together to reduce noise and vibration. You may also find it useful to tightly clamp the E sections, spacers, and I sections together to reduce ballast noise, particularly when running at high operating currents. Best regards, -- Bert --
: Would magnet wire be a better choice? I know with the
: thinner insulation I would get more TPI , I need to make a bobbin to wind
: it, should I also have layers of paper or something beteween the windings ,
: I thought with the THHN I could skip that. And, should the windings be
: epoxied or something to keep them from vibrating, or , with my short duty
: cycle, this wouldnt be a problem? Thanks again!!!!!!!!!!!!!!!!!!
:
:
Message Thread
« Back to index | View thread »