---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Mon 06/13/22: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:49 AM - Re: Switched voltage generator (Paul Eckenroth) 2. 09:50 AM - Re: Master and Starter Contactors wiring ("In and out" (fasilpereira) 3. 10:17 AM - Re: Master and Starter Contactors wiring ("In and out" (fasilpereira) 4. 12:23 PM - Re: Re: Switched voltage generator (skywagon185guy) 5. 02:36 PM - Re: Switched voltage generator (Paul Eckenroth) 6. 06:03 PM - Re: Switched voltage generator (user9253) ________________________________ Message 1 _____________________________________ Time: 08:49:46 AM PST US Subject: AeroElectric-List: Re: Switched voltage generator From: "Paul Eckenroth" Thanks Joe. Is this a switching type of regulator. My original stator burned up due to heat generated and I want to make sure I don't repeat this. It is my understanding that the shunt type regulator works by grounding the generator when the needs of the battery are fulfilled. This has to add to the heat produced by the generator which is a real problem for the Revmaster stator. I am hoping that a switching type regulator will keep the stator cooler. Paul Read this topic online here: http://forums.matronics.com/viewtopic.php?p=507184#507184 ________________________________ Message 2 _____________________________________ Time: 09:50:57 AM PST US Subject: AeroElectric-List: Re: Master and Starter Contactors wiring ("In and out" From: "fasilpereira" Thank you Joe, I'm going that way! Fabricio -------- Fabricio Pereira Engineer / Pilot Read this topic online here: http://forums.matronics.com/viewtopic.php?p=507185#507185 ________________________________ Message 3 _____________________________________ Time: 10:17:54 AM PST US Subject: AeroElectric-List: Re: Master and Starter Contactors wiring ("In and out" From: "fasilpereira" Bob and Joe, Thank you for confirming I can wire it reversed. I'm attaching a picture of how it is going to look like. The Master solenoid wiring has been adjusted to receive the battery on the right terminal (I have moved the red wire from the left to the right terminal and the diode remained untouched). Bob, I'm not sure if the ACS Stater Solenoid has an internal diode, but I'm already planning on installing an external one. I just don't have one with me right now but I'll install one before powering up the system. Regarding the battery cables, I'm planning to buy the 4 AWG welding cables pre-assembled by B&C as soon as I define the system layout and can take the length measurements. I decided that after reading your recommendations on your great book! Unfortunately the 4 AWG Starter and the 6 AWG Alternator and main buss feed cables were already made of aircraft grade wires and I'll probably leave it that way. Thanks again for the help and tips, Fabricio -------- Fabricio Pereira Engineer / Pilot Read this topic online here: http://forums.matronics.com/viewtopic.php?p=507186#507186 Attachments: http://forums.matronics.com//files/contactors_389.jpg ________________________________ Message 4 _____________________________________ Time: 12:23:54 PM PST US From: skywagon185guy Subject: Re: AeroElectric-List: Re: Switched voltage generator Stator Burn up..... Some of the newer chemistry batteries have such low internal resistance that they can "take" huge amounts of charging amps from the alternator at engine idle; low rpms. Most alternators are built to supply fairly low amperage at idle BUT are capable of putting out large amounts if the external load is very low resistance. The problem; The alternator is mainly cooled by air driven by its built-in fan system. At idle, the heat generated by high amps is greater than the air flow can handle. Thus, items inside the unit start to overheat and fail. So, just beware if you are using a battery of this type..... PS: there are special alternators and regulators that are designed to handle this sort of charging situation.... On Mon, Jun 13, 2022 at 8:51 AM Paul Eckenroth wrote: > jeckenroth@nbn.net> > > Thanks Joe. Is this a switching type of regulator. My original stator > burned up due to heat generated and I want to make sure I don't repeat > this. It is my understanding that the shunt type regulator works by > grounding the generator when the needs of the battery are fulfilled. This > has to add to the heat produced by the generator which is a real problem > for the Revmaster stator. I am hoping that a switching type regulator will > keep the stator cooler. > > Paul > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=507184#507184 > > ________________________________ Message 5 _____________________________________ Time: 02:36:17 PM PST US Subject: AeroElectric-List: Re: Switched voltage generator From: "Paul Eckenroth" I am aware of the Lithium battery low resistance situation but also believe that the regulator must add to the problem. If, as I believe, the shunt regulator shunts to ground when the charge of the battery is satisfied then that action should be as much or more of a problem than the low resistance battery. Thus my search for a non shunt regulator that can handle the rigors of flight. If you know of special regulators that are made for this purpose please send me details. Also if my understanding of the shunt regulator is faulty, please correct me. Thanks. Paul Read this topic online here: http://forums.matronics.com/viewtopic.php?p=507188#507188 ________________________________ Message 6 _____________________________________ Time: 06:03:58 PM PST US Subject: AeroElectric-List: Re: Switched voltage generator From: "user9253" My John Deere regulator is a switching type. The outside air temperature was 80 F when I flew Saturday, 3 days ago. There is a thermocouple on my voltage regulator. Its temperature is displayed on the Dynon D-180. The highest voltage regulator temperature Saturday was 151 F. -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=507189#507189 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.