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  1. #41
    Platinum Member
    Join Date
    Oct 2012
    Posts
    767
    Location
    Western KY
    Tractor
    Multiple

    Default Re: What's best for standby power?

    Thanks was wondering how affordable units like that were. What can you run for the 30 amps and 7 kW.

  2. #42
    Bronze Member
    Join Date
    Jun 2012
    Posts
    50
    Location
    Maryland
    Tractor
    n/a

    Default Re: What's best for standby power?

    I'm probably confused, and you've figured it out but... 7,200 Watts @ 30 Amps means it's output voltage is 240 Volts. In your first post you say you need 120V for a stair climber and I'm guessing other things as well. Is your generator panel wired to send 120V into the house? Or are you taking power from a 120VAC generator tap? If so, then you'll only have 3,600 Watts available (30 Amps @ 120V).
    Charlie

  3. #43
    Platinum Member
    Join Date
    Jul 2012
    Posts
    889
    Location
    Southeast Minnesota
    Tractor
    JD 4720, JD X748SE, JD 997, Farmall "B"

    Default Re: What's best for standby power?

    Quote Originally Posted by Sparks45 View Post
    I'm probably confused, and you've figured it out but... 7,200 Watts @ 30 Amps means it's output voltage is 240 Volts. In your first post you say you need 120V for a stair climber and I'm guessing other things as well. Is your generator panel wired to send 120V into the house? Or are you taking power from a 120VAC generator tap? If so, then you'll only have 3,600 Watts available (30 Amps @ 120V).
    Charlie
    Usually (but not always) the generator windings are center tapped, and a neutral is run along with the 2 hots. So you can pull 2 3600 watt, 120 volt loads, or 1 7200 watt, 240 volt load.
    You would run 4 wires to the house panel...2 hots, 1 neutral, and 1 ground.

  4. #44
    Gold Member
    Join Date
    Apr 2010
    Posts
    467
    Location
    Forfar, Ontario, Canada
    Tractor
    1947 Massey Harris 30, 1960 Massey Ferguson 35 (Perkins), 1995 TAFE 351DI, 1980 Bolens G174, 2005 Kubota B7510

    Default Re: What's best for standby power?

    Quote Originally Posted by Sparks45 View Post
    I'm probably confused, and you've figured it out but... 7,200 Watts @ 30 Amps means it's output voltage is 240 Volts. In your first post you say you need 120V for a stair climber and I'm guessing other things as well. Is your generator panel wired to send 120V into the house? Or are you taking power from a 120VAC generator tap? If so, then you'll only have 3,600 Watts available (30 Amps @ 120V).
    Charlie
    It's a four-wire feed with 30 amps on each of the 120 circuits. It has a white wire to serve as the neutral for the 120 circuits, and a green ground wire. The generator panel is set up just like the breaker panels in the house, only smaller, so I have both 120 (2 banks) or I can combine them and have 240 volts for the water pump or any other 240 volt appliance which doesn't overload the system. Water heater's too much load, I fear.

    Maybe I should put in a propane water heater.

  5. #45
    Super Member
    Join Date
    Feb 2008
    Posts
    9,393
    Location
    somewhere usa
    Tractor
    Deere 110tlb, 4520, x749, L130

    Default Re: What's best for standby power?

    You can use a dual element 4500w water heater but that is inefficient imo. Understand that only one element is run at a time, so your load is figured with 4500 watts which is within your limits. Whether you can run the W/H and the well pump at the same time is doubtful if it is a deep well. Still you could heat up the water first then shut it off and get a shower or two

    Having a gas range, water heater, clothes dryer and the oil fired furnace would really lighten the load on the genset and increase the comfort level.

  6. #46
    New Member
    Join Date
    Apr 2011
    Posts
    18
    Tractor
    JD 790, MF50

    Default Re: What's best for standby power?

    If your looking for standby power look for a generator that is water cooled and runs at 1800 rpm. I have 3 kohler generators rated at 7.5kw which are 4 cylinder water cooled units that run at 1800 rpm. They have power factor of 1 meaning they can sustain 7500 watts indefinitely. I bought all of the units I have for $400 each. They do not use much fuel about a gallon an hour at a high to moderate load and are very reliable. It also has the ability to use propane/natural gas/ or gasoline to run on if you have a regulator. My other identical set has a regulator and I am setting it up to run solely on nat gas. Plus they are all very quiet. The cart is from tractor supply and is not really up to handling the load as the generator weighs around 500lbs.






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