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Type: Posts; User: peterh5322

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  1. Notice that the headstock's drum switch (same as...

    Notice that the headstock's drum switch (same as the ELSR's microswitches) are implementing a "lockout" function.

    Namely, the FWD/Off-Brake/REV switch MUST be in the Off-Brake position in order to...
  2. Please review my original post, and the schematic...

    Please review my original post, and the schematic diagrams attached thereto.

    In that post, I intentionally split the run winding across two starter contact sets, with the start winding through the...
  3. Got it, thanks. I should have seen that one...

    Got it, thanks.

    I should have seen that one coming, as one of my points has always been that a Steelman-modified motor may be returned to a conventional motor.

    Peter
  4. "end-product CAN also be used AS an RPC for other...

    "end-product CAN also be used AS an RPC for other external loads when the 10EE is not in-use for turning"

    I'm not clear how this would be true.

    The three-terminal motor with 0-, 120- and...
  5. In order to size the heaters, it is necessary to...

    In order to size the heaters, it is necessary to have current readings for the run winding and the start winding. These will be different. A "clamp meter" is required.

    Alas, there is only room for...
  6. "So here is the schematic I drew up of my...

    "So here is the schematic I drew up of my components."

    Excellent drawing.

    What are you using as a motor controller, the fusible safety switch?

    + 3,500 rpm to - 3,500 rpm in 5 seconds is...
  7. "Sounds like you're about to hack this thing. I'd...

    "Sounds like you're about to hack this thing. I'd like to hear what you come up with."

    I'm not planning on hacking it, just trying to understand it.

    The Steveco adjustable is adjustable by...
  8. Irrespective of what the eBay sellers may state,...

    Irrespective of what the eBay sellers may state, the SUPR-branded "universal potential relays" are non-adjustable, whereas the APR5-branded "adjustable potential relays" are fully-adjustable.

    List...
  9. I just now received a SUPCO adjustable potential...

    I just now received a SUPCO adjustable potential relay from the above-named source.

    Yes, the intended application is starting and running of single-phase capacitor-start/capacitor-run motors on...
  10. The fully-adjustable SUPR potential relay is more...

    The fully-adjustable SUPR potential relay is more particularly described in the unit's US Patent: 5528120.
  11. The Supco "universal" P.R.s are about $29, with...

    The Supco "universal" P.R.s are about $29, with "free" shipping from the distributor, but are about $19 and change, also with "free" shipping, from eBay sellers.

    See ...

    Supco Supr Universal...
  12. "There is a 60uf run cap, a 300uf start cap and a...

    "There is a 60uf run cap, a 300uf start cap and a Supco potential relay"

    A 5 HP-rated potential relay can safely handle about 525 µF for starting capacitance, so that possibly a 3 HP-rated...
  13. Excellent work! There is an extra ("spare" ?)...

    Excellent work!

    There is an extra ("spare" ?) 1/2" trade size threaded bore in the main contactor area.

    This would be the perfect place to send and receive the additional conductors which are...
  14. "What's nice about this modification is that it...

    "What's nice about this modification is that it can be easily undone without taking the motor apart again as the internal star point is now another external star point. Therefore the motor can be...
  15. "Who would have thunk they'd be metric?" The...

    "Who would have thunk they'd be metric?"

    The Europeans invented the "frictionless" ball bearing. It is only natural that these be dimensioned in metric units.

    There are indeed ball bearings...
  16. "What opinions do the motorheads and phase...

    "What opinions do the motorheads and phase converter Gurus have on this design?"

    I designed the Steelman-like adaptation of a 10EE motor-generator system (230 and 440 volts) and posted it some...
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