KR> Electrical System
Mark, I have a major wing problem with my KR2S. Anyway I could talk to you personally or private email about it? Really need help. Thanks On Oct 2, 2015 10:04 PM, "Mark Langford via KRnet" wrote: > The Diehl alternator setup on my plane is the old single phase system, and > is a permanent magnet ring mounted to the flywheel, with a bunch of coils > surrounding it (bolted to the case). The regulator has two AC inputs from > the coils, and one output to the battery. I'm pretty sure the coils and > magnets are from an Onan generator. It delivers an amazingly steady 14.5V > output, and charges anywhere north of 1500 rpms. I have a couple of $1 50A > Schottkey diodes that manage the backup battery charging and isolation from > the main system. That backup battery is constantly being charged by the > alternator (as is the main battery), but a drain on the main side won't > hurt the backup side. They are rated at a current that will act as a fuse > in case of a short in the main system, isolating the backup from the main. > I'm quite happy with the failsafe nature of the system, and the price was > right... > > Mark Langford > ML at N56ML.com > http://www.n56ml.com > > > ___ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org > please see other KRnet info at http://www.krnet.org/info.html > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options >
KR> Electrical System
Gday Mark Yep, I tried a similar system (refer photos) for the alternator some years ago. These are parts from a Harley. I have a similar battery diode system on my Land Cruiser for when I go bush. Very hard to turn over a large diesel by hand and always good to have power to run the HF radio in case of emergency (and the beer fridge). Regards John John Martindale 29 Jane Circuit Toormina NSW 2452 Australia ph:61 2 6658 4767 m:0403 432179 email:john_martindale at bigpond.com web site: -Original Message- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Mark Langford via KRnet Sent: Saturday, 3 October 2015 1:04 PM To: KRnet Cc: Mark Langford Subject: Re: KR> Electrical System The Diehl alternator setup on my plane is the old single phase system, and is a permanent magnet ring mounted to the flywheel, with a bunch of coils surrounding it (bolted to the case sheep shears -- next part -- A non-text attachment was scrubbed... Name: 100_0961.jpg Type: image/jpeg Size: 20944 bytes Desc: not available URL: <http://list.krnet.org/mailman/private/krnet_list.krnet.org/attachments/20151004/f184c887/attachment.jpg> -- next part -- A non-text attachment was scrubbed... Name: 100_0958.jpg Type: image/jpeg Size: 15917 bytes Desc: not available URL: <http://list.krnet.org/mailman/private/krnet_list.krnet.org/attachments/20151004/f184c887/attachment-0001.jpg> -- next part -- - No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.6140 / Virus Database: 4435/10750 - Release Date: 10/03/15
KR> Electrical System
Hi Sid I don't think that is a field driven alternator rather it is a permanent magnet alternator or dynamo. There is no field coil that is energised by the regulator. It's not needed, the magnets provide the field and it is unadjustable except by changing engine speed. The two wires you refer to I suspect are the AC output from the perimeter coils where the current is induced by movement of the magnet within it. More than likely they are the same colour (often blue or black). The current flow is positive in one wire and negative in the other and that reverses many times as the magnet rotates and the positive and negative poles pass by a coil. The AC is rectified by the regulator to produce DC which is then smoothed and regulated to provide 13.8v DC nominal. It is exactly analogous to the John Deere setup or that found in Harley motorcycles. You are correct, by disconnecting one or other of the two wires the alternating current flow is disrupted. However there will now be a very high voltage drop across the ends instead which has potential to break down your coil insulation. Crowbar overvoltage protection concepts and circuit diagrams are provided at Bob Nuckolls aeroelectric site. www.aeroelectric.com I hope this helps you better understand your electrical system. Regards John John Martindale 29 Jane Circuit Toormina NSW 2452 Australia ph:61 2 6658 4767 m:0403 432179 email:john_martindale at bigpond.com web site: -Original Message- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Sid Wood via KRnet Sent: Saturday, 3 October 2015 8:17 AM To: krnet at list.krnet.org Cc: Sid Wood Subject: Re: KR> Electrical System I do not know any thing about the John Deer alternators. The Diehl alternator consists of permanent magnet array bolted to the fly wheel, a set of coils with iron cores bolted to the Diehl adapter case and a quite small regulator usually mounted on the firewall. Two wires from the adapter case hookup to the regulator. One wire is for the field and the other wire is for the alternator output. Without the field wire connected, the alternator has no snip - No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.6140 / Virus Database: 4435/10744 - Release Date: 10/02/15
KR> Electrical System
Hi folks Yes, I agree with Paul, the function is too protect the wiring but, in the permanent magnet dynamo (20amp) setup, the only component capable of supplying 35amps or more throughout the system wiring is the battery thus the circuit breaker should be immediately downstream of the battery (not in the dynamo output where it can never trip thereby providing no insurance). You can't get blood out of a stone. Different story with a normal alternator (or a bigger dynamo) that is capable of supplying 35 amps or more. By all means protect your wiring with a breaker as per your usual arrangement in aircraft. A dynamo regulator failure allowing excess unrectified AC or DC voltage (depending on the failure) to pass into the system is dealt with using an overvoltage circuit that should drive a relay in the dynamo outputs to isolate the dynamo. Excess voltage will not trip a circuit breaker that relies on current for its function. It is the load on the circuit from your equipment (as normal or in failure) that will determine the current flow through the wiring but only up to the maximum that the dynamo can produce (20 amp rating). Anything more comes out of the battery (anything up to welding current)!!!. Your KR must be getting really close now up there in Brissiego the cowboys :-) Regards John. John Martindale 29 Jane Circuit Toormina NSW 2452 Australia ph:61 2 6658 4767 m:0403 432179 email:john_martindale at bigpond.com web site: -Original Message- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Paul & Karen Smith via KRnet Sent: Saturday, 3 October 2015 6:40 AM To: 'KRnet' Cc: Paul & Karen Smith Subject: Re: KR> Electrical System Hi all, Circuit breakers and fuses are installed into systems solely to protect the wiring form too high current that could cause a fire. Selecting the amp rating of a breaker is a function of the maximum current carrying capacity of the conductor/insulation pair based on whether it is in free air or inside a mass bundle. Using one as the trigger for overvoltage protection might damage the generator but it will save the many thousands of dollars of other electronic systems in your plane. Good insurance I'd say. Paul. -Original Message- Cc: John Martindale Subject: Re: KR> Electrical System Hmmm, in which case having a 35amp circuit breaker in its unregulated output is pointless. - No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.6140 / Virus Database: 4435/10744 - Release Date: 10/02/15
KR> Electrical System
Hi all, Circuit breakers and fuses are installed into systems solely to protect the wiring form too high current that could cause a fire. Selecting the amp rating of a breaker is a function of the maximum current carrying capacity of the conductor/insulation pair based on whether it is in free air or inside a mass bundle. Using one as the trigger for overvoltage protection might damage the generator but it will save the many thousands of dollars of other electronic systems in your plane. Good insurance I'd say. Paul. -Original Message- Cc: John Martindale Subject: Re: KR> Electrical System Hmmm, in which case having a 35amp circuit breaker in its unregulated output is pointless. It will never trip because the dynamo at 20 amp rating is incapable of supplying that current in the first place unless it goes into substantial overspeed. What should be included is over-voltage protection across the regulated output that breaks (or shunts) the circuit in the event of regulator failure. Breaking unregulated output by circuit breaker or simple switch generates huge voltages in the dynamo coils that could break down the insulation around the wires in it because the power from the coils spinning in the non-adjustable non turn offable magnetic field has nowhere else to go. You should never spin a dynamo without somewhere for the excess power to go...even if it just literally a "crowbar" across the output. Alternators are very different because the coils are energised to produce the field (as opposed to magnet) and can thus be turned off. Spinning of the armature thus has no output and no adverse impact.
KR> Electrical System
The Diehl alternator setup on my plane is the old single phase system, and is a permanent magnet ring mounted to the flywheel, with a bunch of coils surrounding it (bolted to the case). The regulator has two AC inputs from the coils, and one output to the battery. I'm pretty sure the coils and magnets are from an Onan generator. It delivers an amazingly steady 14.5V output, and charges anywhere north of 1500 rpms. I have a couple of $1 50A Schottkey diodes that manage the backup battery charging and isolation from the main system. That backup battery is constantly being charged by the alternator (as is the main battery), but a drain on the main side won't hurt the backup side. They are rated at a current that will act as a fuse in case of a short in the main system, isolating the backup from the main. I'm quite happy with the failsafe nature of the system, and the price was right... Mark Langford ML at N56ML.com http://www.n56ml.com
KR> Electrical System
I do not know any thing about the John Deer alternators. The Diehl alternator consists of permanent magnet array bolted to the fly wheel, a set of coils with iron cores bolted to the Diehl adapter case and a quite small regulator usually mounted on the firewall. Two wires from the adapter case hookup to the regulator. One wire is for the field and the other wire is for the alternator output. Without the field wire connected, the alternator has no output. The field and output returns are through the grounded adapter case. A rectifier array in the case converts the alternating current from the coils to direct current. The only moving part is the magnet assembly. The regulator is all solid state; it does need some cooling and does get that in conjunction with the electronic ignition module cooling air blast. There are no bearings or brushes in the system. The VW crank shaft bearings are used as the alternator bearings. The Diehl alternator is rated for 20 amps output continuous operation. The alternator can produce higher outputs, but will incur overheating problems resulting in insulation breakdown and rectifier burnout. My installation allows air to enter at the magneto mounting location and exit at the starter pinion area on the engine transmission mounting flange. The spinning motion of the fly wheel does pump a lot of air past the alternator. My Dynon D10A has a system voltage readout. An instrument panel mounted load meter displays current output from the alternator. The regulator holds the system voltage to a consistent 14.2 VDC at full battery charge. With every electrical item on line, transponder and VHF radio transmitting, and engine WOT the current output from the alternator is 18 amps. The batteries are still floating. Granted, charging a down battery while running full electrical load may tax the alternator. However, the electric fuel pump is only needed for starting the engine. WOT is limited to 2 minutes at a time due to engine over heating, as recommended by Steve Bennett. Landing lights are not used continuously. With those considerations and at 75% power, the system current load goes to 10 amps. I consider that a reasonable continuous operation design. What could go wrong? Could get excess current outputs by shorting the output to ground, battery failure or alternator failure. If the output current goes high enough the 35 amp circuit breaker would trip and take the alternator and regulator off line. For what ever reason, such as overvoltage, I can disconnect the alternator from the system by manually pulling the breaker. Power is only produced if there is a current flowing. Inductive voltage spikes can be destructive to the system. Batteries do a great job limiting voltage spikes. Using a crowbar type circuit protection is definitely not recommended: that will short out the battery. Sid Wood Tri-gear KR-2 N6242 Mechanicsville, MD, USA -- What kind of alternator is that VW Diehl alternator? Is it field regulated aka most cars or a permanent magnet dynamo with regulator aka the small John Deere or Kubota tractors? Cheers John John Martindale 29 Jane Circuit Toormina NSW 2452 Australia Cc: Sid Wood I have used the Expbus for 5 years on my KR-2. I added a 35 amp circuit breaker for the VW Diehl alternator rated at 20 amps. .sheep shears -- Hmmm, in which case having a 35amp circuit breaker in its unregulated output is pointless. It will never trip because the dynamo at 20 amp rating is incapable of supplying that current in the first place unless it goes into substantial overspeed. What should be included is over-voltage protection across the regulated output that breaks (or shunts) the circuit in the event of regulator failure. Breaking unregulated output by circuit breaker or simple switch generates huge voltages in the dynamo coils that could break down the insulation around the wires in it because the power from the coils spinning in the non-adjustable non turn offable magnetic field has nowhere else to go. You should never spin a dynamo without somewhere for the excess power to go...even if it just literally a "crowbar" across the output. Alternators are very different because the coils are energised to produce the field (as opposed to magnet) and can thus be turned off. Spinning of the armature thus has no output and no adverse impact. John Martindale - From: It is a permanent magnet generator. If I recall correctly it is a John Deer part. ---
KR> Electrical System
Hmmm, in which case having a 35amp circuit breaker in its unregulated output is pointless. It will never trip because the dynamo at 20 amp rating is incapable of supplying that current in the first place unless it goes into substantial overspeed. What should be included is over-voltage protection across the regulated output that breaks (or shunts) the circuit in the event of regulator failure. Breaking unregulated output by circuit breaker or simple switch generates huge voltages in the dynamo coils that could break down the insulation around the wires in it because the power from the coils spinning in the non-adjustable non turn offable magnetic field has nowhere else to go. You should never spin a dynamo without somewhere for the excess power to go...even if it just literally a "crowbar" across the output. Alternators are very different because the coils are energised to produce the field (as opposed to magnet) and can thus be turned off. Spinning of the armature thus has no output and no adverse impact. John Martindale 29 Jane Circuit Toormina NSW 2452 Australia ph:61 2 6658 4767 m:0403 432179 email:john_martindale at bigpond.com web site: -Original Message- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of brian.kraut--- via KRnet Sent: Friday, 2 October 2015 11:39 AM To: KRnet Cc: brian.kraut at eamanufacturing.com Subject: Re: KR> Electrical System It is a permanent magnet generator. If I recall correctly it is a John Deer part. Original Message Subject: Re: KR> Electrical System From: John Martindale via KRnet List-Post: krnet@list.krnet.org Date: Thu, October 01, 2015 1:43 pm To: "'KRnet'" Cc: John Martindale Hi Sid What kind of alternator is that VW Diehl alternator? Is it field regulated aka most cars or a permanent magnet dynamo with regulator aka the small John Deere or Kubota tractors? Cheers John John Martindale 29 Jane Circuit Toormina NSW 2452 Australia ph:61 2 6658 4767 m:0403 432179 email:john_martindale at bigpond.com web site: -Original Message- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Sid Wood via KRnet Sent: Friday, 2 October 2015 1:31 AM To: krnet at list.krnet.org Cc: Sid Wood Subject: Re: KR> Electrical System I have used the Expbus for 5 years on my KR-2. I added a 35 amp circuit breaker for the VW Diehl alternator rated at 20 amps. .sheep shears - No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.6140 / Virus Database: 4435/10737 - Release Date: 10/01/15 ___ Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org please see other KRnet info at http://www.krnet.org/info.html see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options ___ Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org please see other KRnet info at http://www.krnet.org/info.html see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options - No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.6140 / Virus Database: 4435/10739 - Release Date: 10/01/15 - No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.6140 / Virus Database: 4435/10739 - Release Date: 10/01/15
KR> Electrical System
Any KR 2 in N Tx? On Oct 1, 2015 11:12 PM, "John Martindale via KRnet" wrote: > Hmmm, in which case having a 35amp circuit breaker in its unregulated > output > is pointless. It will never trip because the dynamo at 20 amp rating is > incapable of supplying that current in the first place unless it goes into > substantial overspeed. > > What should be included is over-voltage protection across the regulated > output that breaks (or shunts) the circuit in the event of regulator > failure. Breaking unregulated output by circuit breaker or simple switch > generates huge voltages in the dynamo coils that could break down the > insulation around the wires in it because the power from the coils spinning > in the non-adjustable non turn offable magnetic field has nowhere else to > go. You should never spin a dynamo without somewhere for the excess power > to > go...even if it just literally a "crowbar" across the output. > > Alternators are very different because the coils are energised to produce > the field (as opposed to magnet) and can thus be turned off. Spinning of > the > armature thus has no output and no adverse impact. > > John Martindale > 29 Jane Circuit > Toormina NSW 2452 > Australia > > ph:61 2 6658 4767 > m:0403 432179 > email:john_martindale at bigpond.com > web site: > -Original Message- > From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of > brian.kraut--- via KRnet > Sent: Friday, 2 October 2015 11:39 AM > To: KRnet > Cc: brian.kraut at eamanufacturing.com > Subject: Re: KR> Electrical System > > It is a permanent magnet generator. If I recall correctly it is a John > Deer part. > > > Original Message > Subject: Re: KR> Electrical System > From: John Martindale via KRnet > Date: Thu, October 01, 2015 1:43 pm > To: "'KRnet'" > Cc: John Martindale > > Hi Sid > > What kind of alternator is that VW Diehl alternator? Is it field > regulated > aka most cars or a permanent magnet dynamo with regulator aka the small > John > Deere or Kubota tractors? > > Cheers John > > John Martindale > 29 Jane Circuit > Toormina NSW 2452 > Australia > > ph:61 2 6658 4767 > m:0403 432179 > email:john_martindale at bigpond.com > web site: > -Original Message- > From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Sid Wood > via > KRnet > Sent: Friday, 2 October 2015 1:31 AM > To: krnet at list.krnet.org > Cc: Sid Wood > Subject: Re: KR> Electrical System > > I have used the Expbus for 5 years on my KR-2. I added a 35 amp circuit > breaker for the VW Diehl alternator rated at 20 amps. .sheep shears > > > > - > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2015.0.6140 / Virus Database: 4435/10737 - Release Date: > 10/01/15 > > > ___ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org > please see other KRnet info at http://www.krnet.org/info.html > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to > change options > > ___ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org > please see other KRnet info at http://www.krnet.org/info.html > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options > > > - > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2015.0.6140 / Virus Database: 4435/10739 - Release Date: 10/01/15 > > > > - > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2015.0.6140 / Virus Database: 4435/10739 - Release Date: 10/01/15 > > > ___ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org > please see other KRnet info at http://www.krnet.org/info.html > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options >
KR> Electrical System
Hi Sid What kind of alternator is that VW Diehl alternator? Is it field regulated aka most cars or a permanent magnet dynamo with regulator aka the small John Deere or Kubota tractors? Cheers John John Martindale 29 Jane Circuit Toormina NSW 2452 Australia ph:61 2 6658 4767 m:0403 432179 email:john_martindale at bigpond.com web site: -Original Message- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Sid Wood via KRnet Sent: Friday, 2 October 2015 1:31 AM To: krnet at list.krnet.org Cc: Sid Wood Subject: Re: KR> Electrical System I have used the Expbus for 5 years on my KR-2. I added a 35 amp circuit breaker for the VW Diehl alternator rated at 20 amps. .sheep shears - No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.6140 / Virus Database: 4435/10737 - Release Date: 10/01/15
KR> Electrical System
> Most mechanical circuit > breakers are rated for 10,000 trip cycles. > > Sid Wood > Tri-gear KR-2 N6242 > Mechanicsville, MD, USA > -- If my mechanical circuit breakers are getting close to 10,000 trip cycles, I have done something very wrong... Real world failures of mechanical circuit breakers seem to be more related to corrosion on the contacts creating a voltage drop across the breaker. I've seen that a number of times in 1960s vintage aircraft. That is an issue one should never see with electronic breakers. Of course your mechanical breakers need to age for about 40 or 50 years before that becomes a problem. Not really my cup of tea, but for those that like an electronic panel. Vertical Power seems to be the favored company if one wants to use electronic breakers. Their VP-X Sport and VP-X Pro series units integrate with a number of EFIS displays, so can be controlled from the EFIS. Their stuff isn't cheap, but it works quite well. The vertical power unit also integrates a lot of whiz bang capability as well by giving you the capability to program it to not allowing flaps to extend above a certain speed, or warn you if you exceed your flap speed with them deployed, can control your trim, operates the landing lights as Wig-Wags, and allows each circuit to be programmed individually for the electronic circuit breaker trip current. Lots of bells and whistles for those that want to program their airplane. -Jeff Scott Los Alamos, NM
KR> Electrical System
It is a permanent magnet generator. If I recall correctly it is a John Deer part. Original Message Subject: Re: KR> Electrical System From: John Martindale via KRnet List-Post: krnet@list.krnet.org Date: Thu, October 01, 2015 1:43 pm To: "'KRnet'" Cc: John Martindale Hi Sid What kind of alternator is that VW Diehl alternator? Is it field regulated aka most cars or a permanent magnet dynamo with regulator aka the small John Deere or Kubota tractors? Cheers John John Martindale 29 Jane Circuit Toormina NSW 2452 Australia ph:61 2 6658 4767 m:0403 432179 email:john_martindale at bigpond.com web site: -Original Message- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Sid Wood via KRnet Sent: Friday, 2 October 2015 1:31 AM To: krnet at list.krnet.org Cc: Sid Wood Subject: Re: KR> Electrical System I have used the Expbus for 5 years on my KR-2. I added a 35 amp circuit breaker for the VW Diehl alternator rated at 20 amps. .sheep shears - No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.6140 / Virus Database: 4435/10737 - Release Date: 10/01/15 ___ Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org please see other KRnet info at http://www.krnet.org/info.html see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options
KR> Electrical System
I have used the Expbus for 5 years on my KR-2. I added a 35 amp circuit breaker for the VW Diehl alternator rated at 20 amps. My system has a main battery and a backup battery. The Dynon D10A has a built-in backup battery. The Expbus keeps all three batteries isolated and charged automatically. The electronic circuit breakers work great. Most mechanical circuit breakers are rated for 10,000 trip cycles. The Expbus electronic breakers have no life-time limiting. When the electronic breaker does trip, the circuit current is limited to about 10 micro amps. Reset is automatic when the circuit is shut off with the individual power switch. The Dynon D10A and Grand Rapids engine monitor are switched on with the master power switch; these have electronic circuit breakers also. The electronic ignition, starter relay, fuel gauges, lights, radios, GPS, intercom and mixture meter are switched through the Expbus, all with the right-sized electronic circuit breakers. The printed circuit card has one massive ground lug for connecting a single point ground; this is a great feature for noise suppression on the radio and headsets. I cannot attest to the company's long term viability. I am quite pleased with the operation of their Expbus. Sid Wood Tri-gear KR-2 N6242 Mechanicsville, MD, USA -- Dan asked, > "Is that the same company that put out Anywhere Map which is now defunct?" I guess Craig will tell us how defunct they are regarding this product he's either ordered or received. They still show this EXPBUS as something they have in stock and are shipping but I wouldn't expect any sort of customer service following the sale. Hopefully if Craig has ordered this unit he won't need any customer service long-term. Control Vision appears to be selling their remaining stock of whatever is left in the warehouse. Something that concerns me about this unit is that it says it uses a sophisticated design that takes the place of conventional breakers or fuses and will automatically re-set after an appropriate interval if there is an overload on that circuit. What if a person wants to take that circuit off line? I guess in that case you'd just turn the circuit off using the switch for that circuit. Is that how it works Craig? This is advertised by Control Vision as an "advanced feature". I like the all-in-one design that simplifies organizing ones electrical system. Hopefully Craig can tell us more about it. It looks like something that could save a builder some time putting the panel together. I am using the "Expbus 2V DC Load Center Toggle" unit. Simple and straight forward. Here is a link. http://store.controlvision.com/category/EXPB/EXP-Bus-Products/1.html Craig www.kr2seafury.com www.flightwidgets.com --- >> I've been looking on KRnet.org and found some good information about > electrical systems.What are some of your challenges, concerns and whatnot > you guys came across when designing your electrical system? > Thanks! > Trevor -- Don't know anything about the health of the company but when I ordered mine over a year ago I had no problems. The breakers open when an over current happens. It then has a drain circuit that keeps a little current flowing to keep the breaker tripped. When you turn off the associated switch the current drops to zero and the device resets. All good in theory and Sid has actually used it so I would refer any question to him. Craig
KR> Electrical System
Don't know anything about the health of the company but when I ordered mine over a year ago I had no problems. The breakers open when an over current happens. It then has a drain circuit that keeps a little current flowing to keep the breaker tripped. When you turn off the associated switch the current drops to zero and the device resets. All good in theory and Sid has actually used it so I would refer any question to him. Craig > On September 29, 2015 at 12:54 PM Mike Stirewalt via KRnet > wrote: > > > Dan asked, > > > "Is that the same company that put out Anywhere Map which is now > defunct?" > > I guess Craig will tell us how defunct they are regarding this product > he's either ordered or received. They still show this EXPBUS as > something they have in stock and are shipping but I wouldn't expect any > sort of customer service following the sale. Hopefully if Craig has > ordered this unit he won't need any customer service long-term. Control > Vision appears to be selling their remaining stock of whatever is left in > the warehouse. > > Something that concerns me about this unit is that it says it uses a > sophisticated design that takes the place of conventional breakers or > fuses and will automatically re-set after an appropriate interval if > there is an overload on that circuit. What if a person wants to take > that circuit off line? I guess in that case you'd just turn the circuit > off using the switch for that circuit. Is that how it works Craig? This > is advertised by Control Vision as an "advanced feature". I like the > all-in-one design that simplifies organizing ones electrical system. > Hopefully Craig can tell us more about it. It looks like something that > could save a builder some time putting the panel together. > > > Want to place your ad here? > Advertise on United Online > http://thirdpartyoffers.juno.com/TGL3141/560ac27092fc242706ff1st02vuc > > ___ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org > please see other KRnet info at http://www.krnet.org/info.html > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options
KR> Electrical System
I used the Expbus 2V DC Load Center Toggle for my electrical control. Electronic circuit breakers and the prewired board containing the switches greatly simplify wiring. You may need to add a separate alternator output circuit breaker. The included main, auxiliary and emergency busses work great and keep the backup battery charged as well. The emergency bus is automatically floated on line and isolates non-essential items. You will have lots of flexibility designing your electrical system using the Expbus 2V. Be sure to make a complete wiring diagram for all circuit connections. And do not forget the actual ground return circuits in your wood and fiberglass airplane. Sid Wood Tri-gear KR-2 N6242 Mechanicsville, MD, USA I am using the "Expbus 2V DC Load Center Toggle" unit. Simple and straight forward. Here is a link. http://store.controlvision.com/category/EXPB/EXP-Bus-Products/1.html Craig www.kr2seafury.com www.flightwidgets.com --- > On September 28, 2015 at 1:37 PM "T. W. Norman via KRnet" > wrote: > > I've been looking on KRnet.org and found some good information about > electrical systems.What are some of your challenges, concerns and whatnot > you guys came across when designing your electrical system? > Thanks! > Trevor
KR> Electrical System
Dan asked, > "Is that the same company that put out Anywhere Map which is now defunct?" I guess Craig will tell us how defunct they are regarding this product he's either ordered or received. They still show this EXPBUS as something they have in stock and are shipping but I wouldn't expect any sort of customer service following the sale. Hopefully if Craig has ordered this unit he won't need any customer service long-term. Control Vision appears to be selling their remaining stock of whatever is left in the warehouse. Something that concerns me about this unit is that it says it uses a sophisticated design that takes the place of conventional breakers or fuses and will automatically re-set after an appropriate interval if there is an overload on that circuit. What if a person wants to take that circuit off line? I guess in that case you'd just turn the circuit off using the switch for that circuit. Is that how it works Craig? This is advertised by Control Vision as an "advanced feature". I like the all-in-one design that simplifies organizing ones electrical system. Hopefully Craig can tell us more about it. It looks like something that could save a builder some time putting the panel together. Want to place your ad here? Advertise on United Online http://thirdpartyoffers.juno.com/TGL3141/560ac27092fc242706ff1st02vuc
KR> Electrical System
Is that the same company that put out Anywhere Map which is now defunct? My Panther Building Documentation at PantherBuilder Web Site Daniel R. Heath -?Lexington, SC -Original Message- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Craig Williams via KRnet Sent: Monday, September 28, 2015 4:21 PM To: KRnet Cc: Craig Williams Subject: Re: KR> Electrical System I am using the "Expbus 2V DC Load Center Toggle" unit. Simple and straight forward. Here is a link. http://store.controlvision.com/category/EXPB/EXP-Bus-Products/1.html
KR> Electrical System
I've been looking on KRnet.org and found some good information about electrical systems.What are some of your challenges, concerns and whatnot you guys came across when designing your electrical system? Thanks! Trevor
KR> Electrical System Voltage
Brad, If your KR is going to have a 12 volt charging system and a 12 volt battery, then you will want the 14 volt units. I have not seen, or heard of, a 24 volt system on a KR. See N64KR at http://KRBuilder.org - Then click on the pics See you at the 2007 - KR Gathering There is a time for building and a time for FLYING and the time for Flying has begun. Daniel R. Heath - Lexington, SC ---Original Message--- So, what dictates what voltage system you go with?
KR> Electrical System Voltage
No pros or cons for your situation. Just stick with a 12-14 volt system. Posted Tuesday 01/30/07 - 8:25 am Regards Myron (Dan) Freeman Indpls, Ind. 46203 USA mfreem...@indy.rr.com
KR> Electrical System Voltage
At 09:26 PM 1/29/2007, you wrote: >So, what dictates what voltage system you go with? Any pros or cons to >either? Suggestions? I will be using a Corvair engine. >Brad Payne First off I'd say go with the 12volt system. I wouldn't even consider the 24 volt application for the KR with the components used. I'm also guessing that you're looking at a panel mounted radio and GPS. The panel is not all that large in the KR and just from the angle I'd advise going with the light weight hand-held radio and GPS. The hand held radio, when used with an intercom and external antenna, will perform just as well as a panel mount. It depends on just how good the deal is. :-) Larry Flesner
KR> Electrical System Voltage
I am just beginning to build my KR-2S but have come across some good deals on a used NAV/COM and GPS. The GPS can handle either standard voltage, but the radio is specific to either 14 or 28 volts, not sure which yet. (I have not bought them... YET) So, what dictates what voltage system you go with? Any pros or cons to either? Suggestions? I will be using a Corvair engine. Thanks, Brad Payne www.n494bp.com bradleyspa...@gmail.com
KR> Electrical System Schematic
If you are having trouble getting started on your electrical, this may help you. I had a lot of help as is documented in the image window on this page. If you want to see the schematic drawing, click on the link in the image window. Read the directions first, on how to get it. Go here first. This is also available in the drop down menu, under Electrical, on the home page. http://kr-builder.org/Electrical/index.html "There is a time for building and a time for GOING TO THE GATHERING, and the time for building has long since expired." See you in Mt. Vernon - 2004 - KR Gathering http://KRGathering.org See N64KR at http://KR-Builder.org - Then click on the pics Daniel R. Heath - Columbia, SC
