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Honda ST1100 Section => Honda ST1100 General Questions => Topic started by: excopper on February 13, 2018, 02:35:49 PM

Title: 40amp alternator
Post by: excopper on February 13, 2018, 02:35:49 PM: Hi all,
at the moment my 2003p st1100 is at the doctors with charging fault....Im suspecting a alternator will be required.. so If anyone has a 40amp,for sale, that will slot straight in would appreciate a call,,,sms 0457437922..

cheers Rob Halden
Title: Re: 40amp alternator
Post by: johnnyYTED on February 13, 2018, 05:20:50 PM: :blk13 :dred11
Rob a few years back my 40 amp alt on STranger karked it. I had it rebuilt at an Auto Electrics shop. They respun the centre and its working juST fine after another 100,000k's :think1 Maybe ask about over your way if any Auto Electricians know someone to rewind the centre spool bit and replace anything else that needs fixing. :grin
Title: Re: 40amp alternator
Post by: Biggles on February 14, 2018, 10:33:15 AM: Quote from: johnnyYTED on February 13, 2018, 05:20:50 PM
Rob a few years back my 40 amp alt on STranger karked it. I had it rebuilt at an Auto Electrics shop. They respun the centre and its working juST fine after another 100,000k's :think1 Maybe ask about over your way if any Auto Electricians know someone to rewind the centre spool bit and replace anything else that needs fixing. :grin

"the centre spool bit" = rotor.
The stationary part is called the armature.

Good to know the names when you go visiting the electrician- gives the impression you know what you're talking about. :grin
Title: Re: 40amp alternator
Post by: Brock on February 14, 2018, 03:17:43 PM: Quote
"the centre spool bit" = rotor.
The stationary part is called the armature.

the centre spool bit" = rotor. or Armature

The stationary bit is called the Stator

Minor correction o:) o:)
Title: Re: 40amp alternator
Post by: Biggles on February 14, 2018, 04:23:00 PM: Quote from: Brock on February 14, 2018, 03:17:43 PM
the centre spool bit" = rotor. or Armature

The stationary bit is called the Stator

Funnily enough, that's what I was taught on the Twin Otter Ground School (where it's DC, but same spinning part). So I thought I'd better check before dredging up the memory and I found this:

https://www.google.com.au/search?q=stator+alternator+construction&rlz=1C1CHBD_en-GBAU783AU783&tbm=isch&source=iu&ictx=1&fir=oMvExl1eEo4q3M%253A%252CDrxT_rX0JaLMFM%252C_&usg=__2AN4Yr-oc6sThk3afrpR8FyZ7AQ%3D&sa=X&ved=0ahUKEwiK6fey4KTZAhWFEpQKHZHbDbgQ9QEIZzAP#imgrc=3XACfYcZC55SiM: (https://www.google.com.au/search?q=stator+alternator+construction&rlz=1C1CHBD_en-GBAU783AU783&tbm=isch&source=iu&ictx=1&fir=oMvExl1eEo4q3M%253A%252CDrxT_rX0JaLMFM%252C_&usg=__2AN4Yr-oc6sThk3afrpR8FyZ7AQ%3D&sa=X&ved=0ahUKEwiK6fey4KTZAhWFEpQKHZHbDbgQ9QEIZzAP#imgrc=3XACfYcZC55SiM:)

which I took to be pointing at the stator.

Correction welcome! :thumbs
Title: Re: 40amp alternator
Post by: johnnyYTED on February 14, 2018, 05:58:46 PM: :blk13 :dred11
yeah that bit in there that spins wound with copper wire and sealed with some sort of clear resin.. :nahnah
Title: Re: 40amp alternator
Post by: alans1100 on February 14, 2018, 06:30:53 PM: Some people call alternators generators which I guess is what they are with the difference being that the armature and field coils are reversed in the alternator or as I have also seen called as an AC generator.
Title: Re: 40amp alternator
Post by: Gadget on February 14, 2018, 10:03:26 PM: Alternators produce AC (usually in 3 phase) and rectify it to DC.

Generators produce DC direct.

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