The surge protectors for the wind genny consist of four gas tube devices, same ones the telephone company uses, obtained from online surplus, in parallel with two very large wattage 15 volt zener diodes, all wired to compact but substantial bus bars and sealed inside a small plastic 'code' box. The device is wired across the output wires of the wind generator where the wiring leaves the tower and goes inside the boat. These gas tubes are readily available and cheap and can 'take a licken and keep on ticken'. The zeners, while not quite as robust, do act extremely fast to clamp, work at a lower voltage, and are protected from full current by the gas tubes alongside them.
The surge protectors for the small loads are two 5 W 15 volt zener diodes in parellel placed across the input wires to the device, but with a .750 ma PTC 'auto fuse' in series with them on the positive input side. The zeners act to clamp very fast, and if the high voltage is sustained, the PTC device shuts down the current flow through them by transferring to a high resistance state, then when the high voltage is removed it cools off and re-sets. These zeners and the PTC devices can be obtained cheaply from Newark Electronics and other electronic supply houses who are online, or by phone. I can send the PNs to anybody who might want them.-Ken _______________________________________________ Liveaboard mailing list [email protected] To adjust your membership settings over the web http://www.liveaboardnow.org/mailman/listinfo/liveaboard To subscribe send an email to [email protected] To unsubscribe send an email to [email protected] The archives are at http://www.liveaboardnow.org/pipermail/liveaboard/ To search the archives http://www.mail-archive.com/[email protected] The Mailman Users Guide can be found here http://www.gnu.org/software/mailman/mailman-member/index.html
