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billhuntersemail(at)gmail
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 Posted: Thu Jul 14, 2016 1:39 pm Post subject: Can Someone PLEASE Double Check My Homework?!?!?! |
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I am building a dual bus ala’Bob and I am hopeful someone would PLEASE double check my homework.
Attached is a picture of what I want to do. Do I have the cables connected to the correct side of the ties?
THANKS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
..
Cheers!!!
Bill Hunter
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user9253
Joined: 28 Mar 2008
Posts: 1925
Location: Riley TWP Michigan
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| Posted: Thu Jul 14, 2016 2:20 pm Post subject: Re: Can Someone PLEASE Double Check My Homework?!?!?! |
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Do the banded ends of the diodes connect to the positive side of the coils? If so, OK. I can not tell from the picture.
The lower right contactor looks like it has an extra diode that connects the two fat terminals together. Is that what it is, a diode? If so, it is in parallel with the contactor and will be destroyed by high current. A schematic would be easier for me to understand than the picture.
If the mounting surface vibrates, flexible cables are better than a bus bar.
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Joe Gores |
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billhuntersemail(at)gmail
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| Posted: Thu Jul 14, 2016 5:42 pm Post subject: Can Someone PLEASE Double Check My Homework?!?!?! |
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Thanks for your kind reply!
The top-left contactor is a BNC S701-1 and the bottom-right contactor is a BNC S701-2.
I believe the design of the S70 1-1 battery contactor is such that you're supposed to connect the battery positive to the left hand Pole and the electricity flows from left to right. The diode is as delivered and the silver band is to the left Pole.
The bottom-right contactor is supposed to be a bus tie... the idea for the system is when the bus tie switch is off (not grounded) then the left-hand electrical system is powering the left bus independently and the right-hand electrical system is powering the right-hand bus independently.
When the bus tie switch is turned on (ground introduced) then that bus tie contactor acts as the connection between the left hand system and the right hand system.
I do not intend to have the bus tie to automatically close with the starter switch so the question I have is... what Pole do I connect the bus tie switch grounding wire to?
THANKS!!!
Bill Hunter
+1 408-464-1902
On Jul 14, 2016 15:50, "user9253" <fransew(at)gmail.com (fransew(at)gmail.com)> wrote: | Quote: | --> AeroElectric-List message posted by: "user9253" <fransew(at)gmail.com (fransew(at)gmail.com)>
Do the banded ends of the diodes connect to the positive side of the coils? If so, OK. I can not tell from the picture.
The lower right contactor looks like it has an extra diode that connects the two fat terminals together. Is that what it is, a diode? If so, it is in parallel with the contactor and will be destroyed by high current. A schematic would be easier for me to understand than the picture.
If the mounting surface vibrates, flexible cables are better than a bus bar.
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=458197#458197
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billhuntersemail(at)gmail
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| Posted: Thu Jul 14, 2016 6:09 pm Post subject: Can Someone PLEASE Double Check My Homework?!?!?! |
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Also... since the starter relay is powered by a 12-volt source it I ASS-U-ME it does not matter what side of the relay is the power side and what side goes to the starter motor... is this correct?
Bill Hunter
Bill Hunter
+1 408-464-1902
On Jul 14, 2016 6:33 PM, "William Hunter" <billhuntersemail(at)gmail.com (billhuntersemail(at)gmail.com)> wrote: | Quote: |
Thanks for your kind reply!
The top-left contactor is a BNC S701-1 and the bottom-right contactor is a BNC S701-2.
I believe the design of the S70 1-1 battery contactor is such that you're supposed to connect the battery positive to the left hand Pole and the electricity flows from left to right. The diode is as delivered and the silver band is to the left Pole.
The bottom-right contactor is supposed to be a bus tie... the idea for the system is when the bus tie switch is off (not grounded) then the left-hand electrical system is powering the left bus independently and the right-hand electrical system is powering the right-hand bus independently.
When the bus tie switch is turned on (ground introduced) then that bus tie contactor acts as the connection between the left hand system and the right hand system.
I do not intend to have the bus tie to automatically close with the starter switch so the question I have is... what Pole do I connect the bus tie switch grounding wire to?
THANKS!!!
Bill Hunter
[url=tel:%2B1%20408-464-1902]+1 408-464-1902[/url]
On Jul 14, 2016 15:50, "user9253" <fransew(at)gmail.com (fransew(at)gmail.com)> wrote: | Quote: | --> AeroElectric-List message posted by: "user9253" <fransew(at)gmail.com (fransew(at)gmail.com)>
Do the banded ends of the diodes connect to the positive side of the coils? If so, OK. I can not tell from the picture.
The lower right contactor looks like it has an extra diode that connects the two fat terminals together. Is that what it is, a diode? If so, it is in parallel with the contactor and will be destroyed by high current. A schematic would be easier for me to understand than the picture.
If the mounting surface vibrates, flexible cables are better than a bus bar.
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=458197#458197
===========
-
Electric-List" rel="noreferrer" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List
===========
FORUMS -
eferrer" target="_blank">http://forums.matronics.com
===========
WIKI -
errer" target="_blank">http://wiki.matronics.com
===========
b Site -
-Matt Dralle, List Admin.
rel="noreferrer" target="_blank">http://www.matronics.com/contribution
===========
|
|
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user9253
Joined: 28 Mar 2008
Posts: 1925
Location: Riley TWP Michigan
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| Posted: Fri Jul 15, 2016 6:09 am Post subject: Re: Can Someone PLEASE Double Check My Homework?!?!?! |
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| Quote: | | what Pole do I connect the bus tie switch grounding wire to? |
The small right terminal that only has one diode connected to it. Notice that the banded end of the diode does NOT connect to the small right terminal.
Also notice that in the picture that Bob posted,
http://www.bandc.aero/pdfs/S701-2_Wiring.pdf
that there are 3 diodes and each banded end is connected to the small left terminal. Bill, your picture is not very clear, but it looks like one of the 3 diodes is missing and is replaced with a plain jumper wire. If so, something bad will happen.
| Quote: | | it does not matter what side of the relay is the power side and what side goes to the starter motor... is this correct? |
Correct
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Joe Gores |
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billhuntersemail(at)gmail
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| Posted: Fri Jul 15, 2016 6:39 am Post subject: Can Someone PLEASE Double Check My Homework?!?!?! |
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| Quote: | Notice that the banded end of the diode does NOT connect to the small right terminal.
Also notice that in the picture that Bob posted...
|
that there are 3 diodes and each banded end is connected to the small left terminal. Bill, your picture is not very clear, but it looks like one of the 3 diodes is missing and is replaced with a plain jumper wire.
Sorry. Bad photo. Using a smartphone camera if the flash is on then some items get washed out and if the flash is off then some items are not visible. Then when I compress the photo it makes it worse.
Thanks for the confirmation and yes my bus tie contactor does indeed have 3 diodes as delivered.
Thanks to all of your help on this forum... when I flip the switch on my electrical system for the first time... it will not have any of the smoke escape from the wires!
Bill Hunter
On Jul 15, 2016 7:18 AM, "user9253" <fransew(at)gmail.com (fransew(at)gmail.com)> wrote: | Quote: | --> AeroElectric-List message posted by: "user9253" <fransew(at)gmail.com (fransew(at)gmail.com)>
> what Pole do I connect the bus tie switch grounding wire to?
The small right terminal that only has one diode connected to it. Notice that the banded end of the diode does NOT connect to the small right terminal.
Also notice that in the picture that Bob posted,
http://www.bandc.aero/pdfs/S701-2_Wiring.pdf
that there are 3 diodes and each banded end is connected to the small left terminal. Bill, your picture is not very clear, but it looks like one of the 3 diodes is missing and is replaced with a plain jumper wire. If so, something bad will happen.
> it does not matter what side of the relay is the power side and what side goes to the starter motor... is this correct?
Correct
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=458218#458218
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eferrer" target="_blank">http://forums.matronics.com
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errer" target="_blank">http://wiki.matronics.com
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b Site -
-Matt Dralle, List Admin.
rel="noreferrer" target="_blank">http://www.matronics.com/contribution
===========
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