Looking for contact to have a voltage regulator rebuilt

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ELYNN4
ELYNN4 Registered Users Posts: 140 ✭✭
I had to replace the voltage regulator on a 6kw Mecc Alte alternator.  At $700 a pop I’m hoping to find someone who can troubleshoot and possibly rebuild the old voltage regulator.  Anyone have any recommendations?

Thanks in advance!
Off Grid, 4.5KW array, 9&6KW Gens, 6848XW inverter, Midnite Classic 150, 2 strings - 48V - Trojan FLA L16 2V, located in Talkeetna, Alaska

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  • Dave Angelini
    Dave Angelini Solar Expert Posts: 6,832 ✭✭✭✭✭✭
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    How about a picture or link? Is it internal regulation or external?   

    Stuff like that might get some hits.

    I know a guy who can fix about any analog circuitry but would charge a fortune to learn an internal regulator to an Alternator. He mainly does Marine electronics for big Diesel power applications.
    "we go where power lines don't" Sierra Nevada mountain area
       htps://offgridsolar1.com/
    E-mail offgridsolar@sti.net

  • ELYNN4
    ELYNN4 Registered Users Posts: 140 ✭✭
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    It’s an external regulator, but flooded with epoxy.  Not sure how rebuild able it might be.
    Off Grid, 4.5KW array, 9&6KW Gens, 6848XW inverter, Midnite Classic 150, 2 strings - 48V - Trojan FLA L16 2V, located in Talkeetna, Alaska
  • Dave Angelini
    Dave Angelini Solar Expert Posts: 6,832 ✭✭✭✭✭✭
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    Buy it !  He would charge that just to look. Good Luck.
    "we go where power lines don't" Sierra Nevada mountain area
       htps://offgridsolar1.com/
    E-mail offgridsolar@sti.net

  • ELYNN4
    ELYNN4 Registered Users Posts: 140 ✭✭
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    Thanks Dave, already did.  Just curious what it might cost to repair and have a spare one on hand…
    Off Grid, 4.5KW array, 9&6KW Gens, 6848XW inverter, Midnite Classic 150, 2 strings - 48V - Trojan FLA L16 2V, located in Talkeetna, Alaska
  • BB.
    BB. Super Moderators, Administrators Posts: 33,530 admin
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    Electronics are a huge nightmare for anyone that wants to fix and keep "something" running for years/decades...

    I have designed and worked on equipment (telephone gear, networking, ship board, etc.) that--If it works well--A person would like to keep running for a decade or two...

    Have an F150 Ford Pickup from 1998 or so, and some of the "switches" were not working correctly (wipers would not work, electric windows, odometer, etc... All intermittent issues). Turns out it is a nice board with custom(?) IC with I/O connections just under the fuse box. Ford (after 10+ years?) "disowns" any parts or support for their vehicles it seems (I remember the old Ford F150 Ads that made a big deal about their decades old P/U would keep running while other brands would be scrapped at a higher rate).

    Now--Best you can do is buy a used (from a wrecking yard/parts vehicle?) device and cross your fingers (first replacement would set off the alarm after a week, then every 30 minutes)--Got a replacement (no charge)--And nobody wanted the old parts (no debugging or repairs). $250 a pop (lifetime part guarantee--I guess if they can still find a parts vehicle).

    Once we went beyond simple gate/discrete transistor level design, there just is not a "market" for keeping older products running.

    My own two cents... First five years, decent customer support (parts available, technicians that know how to debug and repair (and had test gear setup to do the work). 5-10 years, maybe you will find some old stock or somebody that buys old products and debugs/sells the boards... 10+ years, unless you are very lucky, generally you should plan on buying a new/replacement system.

    -Bill
    Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
  • JRHill
    JRHill Registered Users Posts: 310 ✭✭✭
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    Fixing a board that is filled/covered with epoxy is kind of a non-start.
    Off Grid. Two systems: 1) 2925w panels, OB VFXR3648, FM80, FNDC, Victron BMV-712, Mate3s, 240 xformer, four SimpliPHI 3.8; 2) 780w, Morningstar 30a, Grundfos switch, controller and AC/DC pump, 8 T105. Honda EU7000is w/AGS. Champion 3100. HF 4550, Miller Bobcat.
  • BB.
    BB. Super Moderators, Administrators Posts: 33,530 admin
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    Conformal coatings are always a difficult choice. Manufactures and consumers get moisture and vibration protection, but repairs are very difficult (to near impossible).

    -Bill
    Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
  • NANOcontrol
    NANOcontrol Registered Users Posts: 266 ✭✭✭
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    A long time ago I had a Toyota Supra.  The ignition module went out and went to the dealer for a new one. I asked the price and without looking he said $200.  That was back when that was real money.  I said to myself, Who won the war.   So, I opened it up and it was buried in this sticky stupid mess. It was a thick film circuit on a ceramic base.  It wasn't easy but I managed to solder some wires to it.  I didn't have the right part so I created a Darlington transistor arrangement with four transistors.  I drove it for another 40K and sold it to someone else who at least got another 20K.  Form follows function. There are lots of cheap voltage regulators available that would probably work with modification.  I've never seen those heatsinks with built in spring.