Recent content by 97K15004WD

  1. 97K15004WD

    Variable Frequency Well Pump Upgrade

    This particular case is a Franklin Electric VFD driving a 50HP chilled water pump (Nidec) at 20:1 on 1185 RPM, Class F insulation but rated for Class B temperature rise. I would be curious to find out what kind of harmonics your unit produces on the input and output side of the VFD.
  2. 97K15004WD

    Variable Frequency Well Pump Upgrade

    There is a lot of information on the web regarding harmonics and VFDs. I would recommend looking into that BEFORE adding one to your home system. A soft-start, on the other hand, switches over to a contactor once full speed is achieved and has none of the side effects of a VFD. Another issue...
  3. 97K15004WD

    Variable Frequency Well Pump Upgrade

    This is an example of one I did last week. The VFD is not controlled on the output side and is generating over 20% THD on the driven motor. The motor is overheating and on the edge of failure. Lifespan is cut in half due to heat rise in the windings. In this particular case, the input side...
  4. 97K15004WD

    Variable Frequency Well Pump Upgrade

    Only if you have a VFD Bypass panel installed.
  5. 97K15004WD

    Briggs 696854 14 bucks?!! Pls rec substitute.

    Will the Supertech MP4967 cross for the B&S 696854, provided you have the space for the extra length?
  6. 97K15004WD

    Variable Frequency Well Pump Upgrade

    Better make sure your generator can handle the harmonics from the VFD. 3rd and 5th order harmonics will kill a generator at the worst possible time. Check with your genset manufacturer on what they recommend. I do power quality analysis and this is one of the things I look for.
  7. 97K15004WD

    Right to Repair - Ford’s Jim Farley

    I admire the will of the folks here that don't want to buy a new vehicle as a punishment for the companies pushing this down. They will get a new vehicle though - crashes happen. Insurance companies total cars. Used cars are a declining market (number available), and choices become few...
  8. 97K15004WD

    Right to Repair - Ford’s Jim Farley

    Yep, supply chain control is easier now with AI and computerization. Most larger manufacturers are doing this same thing. Control access to the parts, charge what you want for them, and make the customer into a user, not an owner. The days of a guy crunching numbers to find "efficiencies" are...
  9. 97K15004WD

    Right to Repair - Ford’s Jim Farley

    @Rmay635703 Yep, I agree with you completely. Remove the old non-functioning equipment, and integrate new. Use a mega-squirt, a painless harness, and off to the races. Have to emulate some signals to the BCM so it doesn't lock the security stuff, but it's doable. Maybe even a new fully...
  10. 97K15004WD

    Exhaust Dent, Effect on Power?

    get a dent puller (spot weld type) and pull out the dent.
  11. 97K15004WD

    History of Supertech oil

    VULSAY; you don't say...
  12. 97K15004WD

    Right to Repair - Ford’s Jim Farley

    What's funny about this whole thing is Europe. What are they doing?
  13. 97K15004WD

    How to keep cats away from my trash

    Call animal control in your area. Let them get in touch with your "neighbor" and tell them about nuisance animals.
  14. 97K15004WD

    Right to Repair - Ford’s Jim Farley

    Truth be told, there is nothing that can be done. The big truck industry tried to fight the tighter diesel emissions standards by using older engines, rebuilding engines to avoid the EPA. But, over time, they gave up. It's like gravity, it always wins. The fight must be fought before the...
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