Collins sub generator failure

Question

Collins sub generator failure

NX687 (Mechanical)

(OP)

11 Jan 14 18:51

Has this failure been discussed here , wondering

Ron (Structural) · Answer 1 · 2014-01-11 19:13:28

NX687...not to my knowledge, but crank it up...you'll get some response!

NX687 (Mechanical) · Answer 2 · 2014-01-11 19:57:29

Ron
To my reading it was how the aussies bundled the wires out of the generator that got an overheat in this area also they did the vacuum impreg of the windings which was not quite right as I heard , also , gee they should build a few high power model plane electic motors to learn a few things , you soon learn the weak point when you push amps

NX687 (Mechanical) · Answer 3 · 2014-01-11 22:05:49

Well I learned that you separate the phase wires coming out of the core, if you sort of bundle them they can get hot there,, also vacuum impreg has no place in air cooled model engines as you want the windings open to air cooling not suffocated with epoxy

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Collins sub generator failure