Any coil of wire/generator can have large induced current/voltage if near a lightning strike which produces a very large EMF field locally. This field propagates out from the strike (following ~ 1/r law) inducing currents in any nearby motor/generator/etc. Of course, the induced current/voltage is temporary but can be very large. This is why most motors in the vicinity of strikes are destroyed--garage openers, washers and dryers, etc. This could be the problem with your wind instrument. Charlie Nelson Water Phantom C&C 36XL/kcb (also a semi-retired physicist)
Sent from my iPhone > On Jul 22, 2016, at 5:17 PM, Chuck Saur via CnC-List <cnc-list@cnc-list.com> > wrote: > > Hello gang...just got to boat and wind data and depth was gone on my B&G IS40 > system. I checked connection to backbone and all tight. Now here is the > first suspect issue: when I disconnect the connector from the cups/vane to > the backbone, the depth data is displayed correctly. Plug the wind > instrument back in, and poof! Depth data displays no data again. > > Sounds suspiciously like a problem with my generator on the sending unit? > But why when I connect it again, the depth data is lost. All else > (autopilot, Triton 7 Chartplotter, engine, etc) is functioning properly. > > We had thunderstorms in the area this week...hope not connected with > lightning!!?? > > Anyone up to pointing me in a direction? > > > Chuck Saur > 35-3 Morning Sky > _______________________________________________ > > This list is supported by the generous donations of our members. If you like > what we do, please help us pay for our costs by donating. All Contributions > are greatly appreciated!
_______________________________________________ This list is supported by the generous donations of our members. If you like what we do, please help us pay for our costs by donating. All Contributions are greatly appreciated!
