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  1. SteveKW2

    motor rotation

    Hmm... I remember why I hate those little motors. You have to dig into the windings to change the direction. From what you describe, every motor lead has only ONE wire connected to each lead. You say there is a blue wire connecting the capacitor to the WINDING. Disconnect the blue wire from...
  2. SteveKW2

    motor amps / pump power

    My mistake Pete, It was for Stan. I asked that question since he asked "why" and figured he was trying to exclude any other variables that add to the motors load and gives him a less than accurate picture of what the pump is actually doing. Especially if he is plotting the HP vs GPM on...
  3. SteveKW2

    motor rotation

    My comments were aimed at those who disapprove of the more "practical" posts, since those posts seem to vanish the next day. As for you Pete, I only wish I had as much time as you do to answer the posts. ;)
  4. SteveKW2

    motor amps / pump power

    Are you trying to figure the actual HP less the drag of the seal and others that are adding to the total?
  5. SteveKW2

    motor rotation

    From your description I had guessed you had a motor from Taiwan. Mark each pair of leads that has continuity with each other. Open the motor and you should see that one pair has just one wire going to each lead. The other pair has TWO wires to each lead. This is the set we are concerned with...
  6. SteveKW2

    motor rotation

    Did you notice if the motor sounded different or ran poorly with the swapping of your leads? A standard single phase induction motor is reversible. You more than likely will have to open the motor to get at the START windings. Is there a capacitor mounted on/in the motor and do you see a...
  7. SteveKW2

    motor rotation

    Others who consider this forum as their own personal stomping ground will delete this post since they can't pull out slide rule and tell you the answer. They may think your post is too trivial or not "technical" enough to meet their personal interests and give little thought as to...
  8. SteveKW2

    motor amps / pump power

    No
  9. SteveKW2

    Detecting Regenerated Voltages

    Pete - being in the motor repair business I have rewound hundreds of three phase motors and am quite intimate with how the phases are placed in a stator. The overlapping is very pronounced in a two pole machine. I was just trying to elaborate on your earlier post of ... "It is certainly...
  10. SteveKW2

    60Hz US Motor in UK

    Typically, lowering the voltage like you describe can be done only on blowers/fans and centrifugal pumps. All those loads usually decrease with a decrease in speed. They are the exception to the rule. Not true with a compressor. Lowering the voltage or limiting its current would stall a...
  11. SteveKW2

    Using an induction motor as a generator

    I think you are going to have problems with high current at synchronous speed. The CEMF developed by the rotor is due to the "slip." No slip, no magnetic field in the rotor to limit the current in the stator. I think you would be better to start the motor from the line power then just...
  12. SteveKW2

    Fractional motors 3 Phase unbalance

    This is the key point in the test I posted... "If, on the three possible hookups, the leg farthest from the average stays on the same power lead, most of the unbalance is coming from the power source. However, if the reading farthest from average moves with the same motor lead, the primary...

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