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Author Topic: HELP  (Read 4393 times)

johnny williams

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HELP
« on: March 17, 2006, 11:45:36 AM »
OK so I'm no electrical engineere. I just recieved my 7.5 KW head from Eric Lyons. Very nice. Only one issue how do I get 220 out of the head?? It has automatic voltage regulation I have hooked the jumpers in the dog box according to the manual and still only 120 out of the head (65 V per leg) WHAT AM I MISSING??????

SHIPCHIEF

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Re: HELP
« Reply #1 on: March 17, 2006, 04:59:06 PM »
These are very speed sensitive. It must be turning 1800 RPM to generate full voltage, and in third world countries that is how they adjust the governor; by voltage.
We think that is strange and unacceptable (not knowing the RPM and cycles), but I noticed my ST gen head must be prettly close to 1800 RPM before my Kill-A-Watt will come to life, then show voltage. Maybe you aren't up to rated speed yet. I don't blame you, I worry about overspeed too.
Scott E
Ashwamegh 25/2 & ST12
Lister SR2 10Kw 'Long Edurance' genset on a 10 gallon sump/skid,
Onan 6.5NH in an old Jeager Compressor trailer and a few CCK's

hotater

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Re: HELP
« Reply #2 on: March 17, 2006, 05:09:17 PM »
Be patient...somebody here knows the answer, but it ain't me.   ???
7200 hrs on 6-1/5Kw, FuKing Listeroid,
Currently running PS-Kit 6-1/5Kw...and some MPs and Chanfas and diesel snowplows and trucks and stuff.

binnie

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Re: HELP
« Reply #3 on: March 17, 2006, 05:56:00 PM »
Welcome back Hotater. We missed you, and hope you had a good trip. We are still missing Quinn...(did he go with you?)
Listeroid 12/2 Jkson with 10kw head, for backup now on diesel. Future interests: WVO, bio,  Cogen - Heat exchangers - solar.

trigzy

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Re: HELP
« Reply #4 on: March 17, 2006, 06:07:43 PM »
Hi,
    I'd suspect under-speed as well.....  Assuming that you are actually measuring two legs of 65V, and not just assuming that that is the case.  The AVR may be hooked up incorrectly, as it probably needs 120V as an input for measuring, so the input of the AVR should only be hooked across one leg, not across both legs.  Maybe some pics would be helpful.

Steve

P.S.

Quinn was getting frustrated with various things.........
Power Anand 24/2, Brushless 20kW, some other antique iron.
Vendor of AVR's, Small Clones of Yanmar Diesel and Honda Gasoline Engines

johnny williams

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Re: HELP
« Reply #5 on: March 18, 2006, 12:54:08 AM »
I have checked the Hz with a meyer and have 60-64 Hz. so speed should not be an issue. Thanks for all the replys so far. Hoping for more soon.

trigzy

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Re: HELP
« Reply #6 on: March 18, 2006, 03:29:37 PM »
If you have 60Hz, the problem is the with the way the AVR is hooked up.  The AVR will have an input (sense) and and output (field).  The Sense input has to be connected across only ONE LEG of the generator, and not across both legs.  This should fix your problem.

Steve
Power Anand 24/2, Brushless 20kW, some other antique iron.
Vendor of AVR's, Small Clones of Yanmar Diesel and Honda Gasoline Engines

Stan

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Re: HELP
« Reply #7 on: March 18, 2006, 04:32:32 PM »
Maybe you already have this, but if not, perhaps it might help.
Stan
http://www.listeroids.com/files/ST_manual.pdf

johnny williams

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Re: HELP
« Reply #8 on: March 19, 2006, 12:15:42 PM »
Steve so you are saying hook both wires from the AVR transformer to one leg of the generator?

trigzy

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Re: HELP
« Reply #9 on: March 20, 2006, 12:32:39 PM »
Johnny,
          Asuming that the AVR is currently across both legs, then yes that is correct.  You connect the one wire to the neutral, the other wire to only one of the hot legs.

Steve
Power Anand 24/2, Brushless 20kW, some other antique iron.
Vendor of AVR's, Small Clones of Yanmar Diesel and Honda Gasoline Engines

johnny williams

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Re: HELP
« Reply #10 on: March 21, 2006, 12:50:32 AM »
Thanks for all the help guys! She's putting out like a $2 w#$%& well you know.