---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Thu 08/23/18: 24 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:44 AM - Re: CROWBARS? (bob noffs) 2. 05:27 AM - Re: CROWBARS? (Charlie England) 3. 05:46 AM - Re: CROWBARS? (user9253) 4. 07:06 AM - Re: Re: CROWBARS? (bob noffs) 5. 08:08 AM - Re: CROWBARS? (Robert L. Nuckolls, III) 6. 09:50 AM - DPDT Toggle switch for BAT and 2 Alternators? (supik) 7. 10:23 AM - Re: Re: CROWBARS? (Robert L. Nuckolls, III) 8. 10:29 AM - Re: DPDT Toggle switch for BAT and 2 Alternators? (user9253) 9. 10:55 AM - Re: Re: CROWBARS? (Ken Ryan) 10. 11:05 AM - Re: Re: DPDT Toggle switch for BAT and 2 Alternators? (Robert L. Nuckolls, III) 11. 12:09 PM - Re: Re: CROWBARS? (bob noffs) 12. 12:55 PM - Arctic super-flex wire (Robert L. Nuckolls, III) 13. 01:08 PM - Re: Arctic super-flex wire (Ken Ryan) 14. 01:46 PM - Re: Arctic super-flex wire (Robert L. Nuckolls, III) 15. 02:12 PM - Jabiru 3300 voltage regulator (Pat Little) 16. 02:52 PM - Re: Re: DPDT Toggle switch for BAT and 2 Alternators? (JOHN TIPTON) 17. 04:14 PM - Re: Arctic super-flex wire (Ken Ryan) 18. 04:16 PM - Re: Jabiru 3300 voltage regulator (Robert L. Nuckolls, III) 19. 04:20 PM - Re: DPDT Toggle switch for BAT and 2 Alternators? (Robert L. Nuckolls, III) 20. 04:21 PM - Re: Arctic super-flex wire (Robert L. Nuckolls, III) 21. 05:24 PM - Ground power connector solenoid issue (Kent Ogden) 22. 07:37 PM - Re: Jabiru 3300 voltage regulator (user9253) 23. 08:14 PM - Re: Ground power connector solenoid issue (user9253) 24. 09:30 PM - Re: Re: Jabiru 3300 voltage regulator (Pat Little) ________________________________ Message 1 _____________________________________ Time: 03:44:11 AM PST US From: bob noffs Subject: Re: AeroElectric-List: CROWBARS? i started wiring my ovm and i have a question about auto relays. the contactor i have for the lead off my alternator really bugs me that i am adding 14 ounces just for this ''switch''. my alternator is rated at 37 amps but the 40 and even 50 amp auto relays look like that have a ''faston tab'' for their terminal. are these terminals up to carrying the load from the alternator? bob On Thu, Aug 9, 2018 at 5:31 PM Charlie England wrote: > I'm not (either) Bob, but... > > I assume you're talking about an internally regulated alternator. If you > have a copy of the 'Connection, go to drawing z13/8, 'all electric plane on > a budget'. You can copy the circuit shown for the Dynamo (upper right hand > and top center of the page). Just erase the dynamo/regulator parts and the > filter capacitor, and tie what's labeled as a red wire at the voltage > regulator to the B lead of the alternator. > > Charlie > > On 8/9/2018 2:00 PM, bob noffs wrote: > > hi bob, > i am trying to do ov protection on a viking 110. b and c would have the > ovm blow a breaker and cut off current to coil in a relay. i think i have > seen drawings of yours where a contactor is used betweeen alternator and > main bus . can you direct me to a drawing that is as simple as you say. any > current for relays/ contactors would have to come straight from the > alternator. worst case with the honda is that both batteries must be taken > off line, leaving the alternator to provide spark. > thanks, bob noffs > > On Thu, Jul 12, 2018 at 7:49 AM, Robert L. Nuckolls, III < > nuckolls.bob@aeroelectric.com> wrote: > >> At 05:45 AM 7/12/2018, you wrote: >> >> well, i guess i should wire in a crowbar. seems like it should be pretty >> straight forward to have it break the circuit to the field. i will take a >> look in bob's book for ideas and go from there. >> >> >> The crowbar ov protection module can be added to >> any system wherein alternator field power is >> taken through a typical 5A breaker. The >> module is wired from field supply line to >> ground at any point downstream of that >> breaker. You can find examples in the Z-figures. >> >> >> Bob . . . >> > > > Virus-free. > www.avast.com > > <#m_4793364182841804945_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > ________________________________ Message 2 _____________________________________ Time: 05:27:00 AM PST US From: Charlie England Subject: Re: AeroElectric-List: CROWBARS? Good question. Here's the Faston data sheet: http://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Specification+Or+Standard%7F108-20020%7FD3%7Fpdf%7FEnglish%7FENG_SS_108-20020_D3.pdf%7F180906 The current rating of the terminal seems more closely tied to the wire size than the terminal itself, but everything has a limit. If you want 'insurance', you can get those automotive relays with current ratings up to around 100 amps. I've got one in front of me that's rated for 80 amps, and the power carrying blades are 3/8" wide instead of 1/4". It came with a mating socket & pigtails, so you'd splice on your wire to extend to the final destination. Charlie On Thu, Aug 23, 2018 at 5:36 AM, bob noffs wrote: > i started wiring my ovm and i have a question about auto relays. the > contactor i have for the lead off my alternator really bugs me that i am > adding 14 ounces just for this ''switch''. my alternator is rated at 37 > amps but the 40 and even 50 amp auto relays look like that have a ''faston > tab'' for their terminal. are these terminals up to carrying the load from > the alternator? > bob > > On Thu, Aug 9, 2018 at 5:31 PM Charlie England > wrote: > >> I'm not (either) Bob, but... >> >> I assume you're talking about an internally regulated alternator. If you >> have a copy of the 'Connection, go to drawing z13/8, 'all electric plane on >> a budget'. You can copy the circuit shown for the Dynamo (upper right hand >> and top center of the page). Just erase the dynamo/regulator parts and the >> filter capacitor, and tie what's labeled as a red wire at the voltage >> regulator to the B lead of the alternator. >> >> Charlie >> >> On 8/9/2018 2:00 PM, bob noffs wrote: >> >> hi bob, >> i am trying to do ov protection on a viking 110. b and c would have the >> ovm blow a breaker and cut off current to coil in a relay. i think i have >> seen drawings of yours where a contactor is used betweeen alternator and >> main bus . can you direct me to a drawing that is as simple as you say. any >> current for relays/ contactors would have to come straight from the >> alternator. worst case with the honda is that both batteries must be taken >> off line, leaving the alternator to provide spark. >> thanks, bob noffs >> >> On Thu, Jul 12, 2018 at 7:49 AM, Robert L. Nuckolls, III < >> nuckolls.bob@aeroelectric.com> wrote: >> >>> At 05:45 AM 7/12/2018, you wrote: >>> >>> well, i guess i should wire in a crowbar. seems like it should be pretty >>> straight forward to have it break the circuit to the field. i will take a >>> look in bob's book for ideas and go from there. >>> >>> >>> The crowbar ov protection module can be added to >>> any system wherein alternator field power is >>> taken through a typical 5A breaker. The >>> module is wired from field supply line to >>> ground at any point downstream of that >>> breaker. You can find examples in the Z-figures. >>> >>> >>> Bob . . . >>> >> >> >> >> >> Virus-free. >> www.avast.com >> >> <#m_-5149255066127419438_m_4793364182841804945_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> >> > ________________________________ Message 3 _____________________________________ Time: 05:46:19 AM PST US Subject: AeroElectric-List: Re: CROWBARS? From: "user9253" According to page 8 this document from TE Connectivity using 10AWG, the ampacity is 24 amps continuous or 48 amp intermittent. http://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=82004_FASTON_TERMINALS_-_FULL_CATALOG&DocType=CS&DocLang=EN Chances are that your RV-12 will use about 10 amps continuous, up to 20 intermittent. If you expect to use the full capacity of your alternator continuously, then a faston terminal would be stressed. I would be comfortable using the relay with faston terminals. You have a 40 hour test period to try it out. -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=482646#482646 ________________________________ Message 4 _____________________________________ Time: 07:06:02 AM PST US From: bob noffs Subject: Re: AeroElectric-List: Re: CROWBARS? so to make this even more confusing a site called ''wirebarn.com'' has a wire size calculator that says 12 ga is good for 40 amps up to about 4 feet and the faston site says the .375'' tab is good for 40 amps.anyone have any comment or experience with these stats? bob noffs On Thu, Aug 23, 2018 at 7:50 AM user9253 wrote: > > According to page 8 this document from TE Connectivity using 10AWG, the > ampacity is 24 amps continuous or 48 amp intermittent. > > http://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=82004_FASTON_TERMINALS_-_FULL_CATALOG&DocType=CS&DocLang=EN > Chances are that your RV-12 will use about 10 amps continuous, up to 20 > intermittent. If you expect to use the full capacity of your alternator > continuously, then a faston terminal would be stressed. I would be > comfortable using the relay with faston terminals. You have a 40 hour test > period to try it out. > > -------- > Joe Gores > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=482646#482646 > > ________________________________ Message 5 _____________________________________ Time: 08:08:25 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: CROWBARS? At 05:36 AM 8/23/2018, you wrote: >i started wiring my ovm and i have a question >about auto relays. the contactor i have for the >lead off my alternator really bugs me that i am >adding 14 ounces just for this ''switch''. my >alternator is rated at 37 amps but the 40 and >even 50 amp auto relays look like that have a >''faston tab'' for their terminal. are these >terminals up to carrying the load from the alternator? >=C2 bob You might consider this product: https://goo.gl/UAVJMw I have no experience with these . . . I'm going to order one to peek and poke at . . . but the specs are right. I'd wire the b-lead up with 6AWG welding cable. https://goo.gl/BxAj1V Bob . . . ________________________________ Message 6 _____________________________________ Time: 09:50:01 AM PST US Subject: AeroElectric-List: DPDT Toggle switch for BAT and 2 Alternators? From: "supik" To keep things simple I was thinking about using the Honeywell DPDT on/on/on toggle switch for switching on BAT + Alternator 1 & Alternator 2 (aux alt) at the same time. The design would include one main battery and the IBBS standby bat. Switch position logic: 1. BAT + ALT 1 & ALT 2 2. BAT 3. OFF To manually switch of either ALT 1 or ALT 2 I would have to pull either ALT1 or ALT2 field CBs positioned after the main switch. I understand 2 possible design problems: 1. The wire going to the main switch feeding the ALT fields has no protection 2. The switch would be a single point of failure -any other problems I am missing with this setup? thanks! https://www.steinair.com/product/locking-toggle-switch-dpdt-ononon/ -------- Igor RV10 in progress Read this topic online here: http://forums.matronics.com/viewtopic.php?p=482649#482649 ________________________________ Message 7 _____________________________________ Time: 10:23:42 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: CROWBARS? At 09:04 AM 8/23/2018, you wrote: >so to make this even more confusing a site called >''wirebarn.com'' has a wire size calculator >that says 12 ga is good for 40 amps up to about 4 feet and the >faston site says the .375'' tab is good for 40 amps.anyone have any >comment or experience with these stats? I would discourage running an alternator b-lead through a fast-on tab. Components with threaded fasteners for fat wire termination are demonstrably low risk. The relay I cited earlier offers this feature. #6 welding cable is SOFT and FLEXIBLE hence transfers small installation/operation stresses to the relay's terminals and is VERY capable of carrying alternator outputs up to and including 70A. Bob . . . ________________________________ Message 8 _____________________________________ Time: 10:29:06 AM PST US Subject: AeroElectric-List: Re: DPDT Toggle switch for BAT and 2 Alternators? From: "user9253" One overlooked problem is the $72 cost of the switch plus shipping. :-) -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=482651#482651 ________________________________ Message 9 _____________________________________ Time: 10:55:15 AM PST US From: Ken Ryan Subject: Re: AeroElectric-List: Re: CROWBARS? On the topic of soft and flexible welding cable, we have a supplier up here (Alaska) who developed soft flexible wire for use in cold environments called Arctic Ultraflex. It is almost a flexible as welding cable, and is available in much smaller sizes. The only downside I have found is that the insulation can be cut quite easily, so protection is important. The supplier is Polar Wire but surely this produce is not unique. http://www.polarwire.com/ On Thu, Aug 23, 2018 at 9:28 AM Robert L. Nuckolls, III < nuckolls.bob@aeroelectric.com> wrote: > At 09:04 AM 8/23/2018, you wrote: > > so to make this even more confusing a site called ''wirebarn.com'' has a > wire size calculator that says 12 ga is good for 40 amps up to about 4 feet > and the faston site says the .375'' tab is good for 40 amps.anyone have any > comment or experience with these stats? > > > I would discourage running an alternator b-lead > through a fast-on tab. Components with threaded > fasteners for fat wire termination are demonstrably > low risk. The relay I cited earlier offers > this feature. #6 welding cable is SOFT and FLEXIBLE > hence transfers small installation/operation stresses to > the relay's terminals and is VERY capable of > carrying alternator outputs up to and including > 70A. > > > Bob . . . > ________________________________ Message 10 ____________________________________ Time: 11:05:26 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: DPDT Toggle switch for BAT and 2 Alternators? At 12:28 PM 8/23/2018, you wrote: > >One overlooked problem is the $72 cost of the switch plus shipping. It's also a single point of failure for lots of stuff. Bob . . . ________________________________ Message 11 ____________________________________ Time: 12:09:32 PM PST US From: bob noffs Subject: Re: AeroElectric-List: Re: CROWBARS? i swear i have been to that site a dozen times and never saw that relay. just ordered it. thanks bob. bob noffs On Thu, Aug 23, 2018 at 12:59 PM Ken Ryan wrote: > On the topic of soft and flexible welding cable, we have a supplier up > here (Alaska) who developed soft flexible wire for use in cold environments > called Arctic Ultraflex. It is almost a flexible as welding cable, and is > available in much smaller sizes. The only downside I have found is that the > insulation can be cut quite easily, so protection is important. The > supplier is Polar Wire but surely this produce is not unique. > http://www.polarwire.com/ > > > On Thu, Aug 23, 2018 at 9:28 AM Robert L. Nuckolls, III < > nuckolls.bob@aeroelectric.com> wrote: > >> At 09:04 AM 8/23/2018, you wrote: >> >> so to make this even more confusing a site called ''wirebarn.com'' has a >> wire size calculator that says 12 ga is good for 40 amps up to about 4 feet >> and the faston site says the .375'' tab is good for 40 amps.anyone have any >> comment or experience with these stats? >> >> >> I would discourage running an alternator b-lead >> through a fast-on tab. Components with threaded >> fasteners for fat wire termination are demonstrably >> low risk. The relay I cited earlier offers >> this feature. #6 welding cable is SOFT and FLEXIBLE >> hence transfers small installation/operation stresses to >> the relay's terminals and is VERY capable of >> carrying alternator outputs up to and including >> 70A. >> >> >> Bob . . . >> > ________________________________ Message 12 ____________________________________ Time: 12:55:21 PM PST US From: "Robert L. Nuckolls, III" Subject: AeroElectric-List: Arctic super-flex wire At 12:53 PM 8/23/2018, you wrote: >On the topic of soft and flexible welding cable, >we have a supplier up here (Alaska) who >developed soft flexible wire for use in cold >environments called Arctic Ultraflex. It is >almost a flexible as welding cable, and is >available in much smaller sizes. The only >downside I have found is that the insulation can >be cut quite easily, so protection is important. >The supplier is Polar Wire but surely this >produce is not unique.=C2 http://www.polarwire.com Interesting product line. I'll study the wire more closely when I have time. I do note that the insulation is rated for 105C which is probably fine for what we do. Bob . . . ________________________________ Message 13 ____________________________________ Time: 01:08:16 PM PST US From: Ken Ryan Subject: Re: AeroElectric-List: Arctic super-flex wire Bob, would you like some samples? I have cutoffs etc. laying around. Ken On Thu, Aug 23, 2018 at 11:59 AM Robert L. Nuckolls, III < nuckolls.bob@aeroelectric.com> wrote: > At 12:53 PM 8/23/2018, you wrote: > > On the topic of soft and flexible welding cable, we have a supplier up > here (Alaska) who developed soft flexible wire for use in cold environmen ts > called Arctic Ultraflex. It is almost a flexible as welding cable, and is > available in much smaller sizes. The only downside I have found is that t he > insulation can be cut quite easily, so protection is important. The > supplier is Polar Wire but surely this produce is not unique.=C3=82 > http://www.polarwire.com > > > Interesting product line. I'll study the > wire more closely when I have time. I do > note that the insulation is rated for 105C > which is probably fine for what we do. > > > Bob . . . > ________________________________ Message 14 ____________________________________ Time: 01:46:03 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Arctic super-flex wire At 03:07 PM 8/23/2018, you wrote: >Bob, would you like some samples? I have cutoffs etc. laying around. Sure! PO Box 130, Medicine Lodge, KS 67104-0130 Thanks! Bob . . . ________________________________ Message 15 ____________________________________ Time: 02:12:55 PM PST US From: Pat Little Subject: AeroElectric-List: Jabiru 3300 voltage regulator We have a Jabiru 3300 on a Zenith STOL CH750 and I'm trying to understand the inner workings of the voltage regulator that Jabiru supplies. I asked on the Jabiru forum but didn't get any useful insight. Does anyone on this list happen to know what goes on inside that unit? One of my puzzles is: on Jabiru's wiring diagram it show which pins on the regulator's connector go where, and it lists, among others, these two: "*RED to battery + via relay*" - presumably this is the output to charge the battery and power the plane's electrical system "*YELLOW voltage control - J160C to main bus, other models to battery +*" - is this a feedback signal from the battery into the regulator's sense circuit? if so, that might explain why not *via* *relay*. And why would it connect to a different place in one model of airplane (the J160C is a Jabiru certified plane) than in others? If anyone cares to look, the diagram I mention is on page 269 of the Jabiru Aircraft Technical Manual JTM001-8 ________________________________ Message 16 ____________________________________ Time: 02:52:19 PM PST US Subject: Re: AeroElectric-List: Re: DPDT Toggle switch for BAT and 2 Alternators? From: JOHN TIPTON Plenty on eBay: 10.00 or so John Sent from my iPad ----x--O--x---- > On 23 Aug 2018, at 6:28 pm, user9253 wrote: > > > One overlooked problem is the $72 cost of the switch plus shipping. :-) > > -------- > Joe Gores > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=482651#482651 > > > > > > > > > ________________________________ Message 17 ____________________________________ Time: 04:14:53 PM PST US From: Ken Ryan Subject: Re: AeroElectric-List: Arctic super-flex wire Short lengths of 12,10,8 and 4awg are on the way. Let us know what you think. Sent from my Android. Sorry Steve. On Thu, Aug 23, 2018, 12:49 Robert L. Nuckolls, III < nuckolls.bob@aeroelectric.com> wrote: > At 03:07 PM 8/23/2018, you wrote: > > Bob, would you like some samples? I have cutoffs etc. laying around. > > > Sure! PO Box 130, Medicine Lodge, KS 67104-0130 > > Thanks! > > > Bob . . . > ________________________________ Message 18 ____________________________________ Time: 04:16:33 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Jabiru 3300 voltage regulator At 04:12 PM 8/23/2018, you wrote: >We have a Jabiru 3300 on a Zenith STOL CH750 and >I'm trying to understand the inner workings of >the voltage regulator that Jabiru supplies. I >asked on the Jabiru forum but didn't get any >useful insight. Does anyone on this list happen >to know what goes on inside that unit? > >One of my puzzles is: on Jabiru's wiring diagram >it show which pins on the regulator's connector >go where, and it lists, among others, these two: >"RED to battery=C2 + via relay" - presumably this >is the output to charge the battery and power the plane's electrical system >"YELLOW voltage control - J160C to main bus, >other models to battery=C2 +"=C2 - is this a >feedback signal from the battery into the >regulator's sense circuit? if so, that might >explain why not via relay. And why would it >connect to a different place in one model of >airplane (the J160C is a Jabiru certified plane) than in others? > >If anyone cares to look, the diagram I mention >is on page 269 of the >Jabiru >Aircraft Technical Manual JTM001-8 I would guess that yellow is a sense lead. Exactly WHY they do certain things in their architecture is perhaps a down-under state secret. I've had some email contact with the factory about 10 years ago trying to resolve similar questions but I've never been able to talk with anyone who really understood the system. All I could get out of them is "that's what the diagrams have always shown . . . and YOU are the only one complaining about them." It's been my observation that people who design engines should stay out of the electrical system business . . . same for Rotax . . . Bob . . . ________________________________ Message 19 ____________________________________ Time: 04:20:46 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: DPDT Toggle switch for BAT and 2 Alternators? At 11:49 AM 8/23/2018, you wrote: > >To keep things simple I was thinking about using the Honeywell DPDT >on/on/on toggle switch for switching on BAT + Alternator 1 & >Alternator 2 (aux alt) at the same time. The design would include >one main battery and the IBBS standby bat. Really wish you wouldn't do that. Suggest you take one of the Z-figures and identify features that do not meet your design goals . . . then get with the gurus here on the List to sort out your options. Unless you've been doing this for a long time, there's significant risk that 'simplifications' move your risk factors in the wrong direction. Bob . . . ________________________________ Message 20 ____________________________________ Time: 04:21:22 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Arctic super-flex wire At 06:14 PM 8/23/2018, you wrote: >Short lengths of 12,10,8 and 4awg are on the way. Let us know what you think. Thanks! Bob . . . ________________________________ Message 21 ____________________________________ Time: 05:24:22 PM PST US From: "Kent Ogden" Subject: AeroElectric-List: Ground power connector solenoid issue Hi all, I'm building an RV-10 and wanted to have a GPU connector for convenience, and used Bob's excellent article to do so: http://www.aeroelectric.com/articles/grndpwr.pdf I built the version with over-voltage protection, though I left out the indicator light. I have it all wired up but not connected to the battery or battery solenoid yet. The output wire is connected to the GPU solenoid but just hanging in space (and well insulated to prevent shorts while testing). I applied 12V from a lawn tractor battery to the connector, and sure enough the solenoid closes and 12V appears on the output. Then I open the CB to make sure that it's working, apply power, and the solenoid closed again! I started debugging and what I found is that the S terminals on the solenoid have a low resistance path to the solenoid case with nothing at all connected to them. One has a resistance of about 4 ohms to the case, the other about 15 ohms. The resistance between the S terminals is about 16.5 ohms, which is darn close to spec. The solenoid will close with nothing but the diode connected from the input side to the S1 terminal, and the S2 terminal with nothing on it! This is a Sky-Tec STS-A12, which is definitely the right part. Sounds like a bad solenoid? This thing is new but I purchased it a couple years ago from ACS so I don't know if I can get it replaced at this point. It was too late to call Sky-Tec today but if this is truly defective I think they'd want to know about it. Anyone else ever see this? Anything simple I'm overlooking? Kent Ogden ________________________________ Message 22 ____________________________________ Time: 07:37:26 PM PST US Subject: AeroElectric-List: Re: Jabiru 3300 voltage regulator From: "user9253" If the Jabiru voltage regulator functions the same as the Ducati regulator used on the Rotax, then the Jabiru regulator yellow control wire functions both as a regulator enable and voltage sense. I find the Jabiru wiring diagram difficult to read. It appears that the yellow control wire connects to the left side of the 60 amp inline fuse. But that wire is not marked on the diagram. If it were my plane, I would wire it according to Bob's Z-16, except substitute a 30 amp inline fuse in place of the 16awg fuselink. -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=482676#482676 ________________________________ Message 23 ____________________________________ Time: 08:14:42 PM PST US Subject: AeroElectric-List: Re: Ground power connector solenoid issue From: "user9253" It sure sounds like the contactor coil is shorted to the case. There is a SERVICE BULLETIN for that contactor, but it describes a different failure than what you describe. http://skytec.aero/wp-content/uploads/2017/10/HET-ASB-072.pdf -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=482677#482677 ________________________________ Message 24 ____________________________________ Time: 09:30:20 PM PST US From: Pat Little Subject: Re: AeroElectric-List: Re: Jabiru 3300 voltage regulator Thanks for that Joe. Now that I have taken a look at Z-16 I like it for a number of reasons. One of them is that the alternator relay is on the alternator (it's called dynamo on the figure) output *into *the voltage regulator. I had been imagining putting the relay in the regulator's output. I'm guessing that the regulator would be happier with no input than full input and open circuit output. But since we don't know what's inside that thing... On Thu, Aug 23, 2018 at 8:42 PM user9253 wrote: > > If the Jabiru voltage regulator functions the same as the Ducati regulator > used on the Rotax, then the Jabiru > regulator yellow control wire functions both as a regulator enable and > voltage sense. > I find the Jabiru wiring diagram difficult to read. It appears that the > yellow control wire connects > to the left side of the 60 amp inline fuse. But that wire is not marked > on the diagram. > If it were my plane, I would wire it according to Bob's Z-16, > except substitute a 30 amp inline fuse in place of the 16awg fuselink. > > -------- > Joe Gores > > ------------------------------------------------------------------------------------- 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.