Different pole motors

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  • ReddyWatts
    Fast Electric Addict!
    • Apr 2007
    • 1711

    #1

    Different pole motors

    The Feigao and KB45 rotors have 2 poles and 3 stator coils.

    For a 2 pole motor, the controller will energize a stator coil 3 times in each revolution.

    I guess that means for a 4 pole motor the controller will energize a stator coil 6 times in each revolution.

    If true, it means for a 6 pole motor the controller will energize a stator coil 9 times in each revolution.

    BL sensorless controllers use the feedback pulse from the wire not being used while it is energizing a stator coil to AUTOMATICALLY sync with the rotors of the different pole motors.

    2 pole energizes a stator coil every 120 degrees of rotation.
    4 pole energizes every 60 degrees.
    6 pole energizes every 40 degrees.

    The more poles the motor has gives it more torque for pushing larger hulls, weight and props. While using less amps, since they are more effecient.

    A 4 pole motor is more forgiving than a 2 pole when accidently over propped. The current surges are not as high.

    More poles make the controller work at a higher frequency to get the same rpm as a 2 pole. Not sure how that effects your controller tempurature?

    Does everyone agree with all this? I am still trying to understand it!
    Last edited by ReddyWatts; 07-29-2007, 12:42 PM.
    ReddyWatts fleet photo
    M1 Supercat - Neu 1527 1Y, 8s / Mean Machine- Feigao 580, 8s, 120 HV esc
    Mean Machine - Feigao 540 14XL, 8s, 100 amp HV esc, X537/3
  • SJFE
    Fast Electric Addict!
    • Apr 2007
    • 4735

    #2
    Sounds pefectly logical to me.

    Comment

    • NorthernBoater
      Senior Member
      • Apr 2007
      • 811

      #3
      How many poles do the Neu and Lehner motors have.

      Comment

      • Jeepers
        Fast Electric Addict!
        • May 2007
        • 1973

        #4
        NEUs are 4 pole motors.

        I think lehners are 2 pole also, ( I think)

        Comment

        • ReddyWatts
          Fast Electric Addict!
          • Apr 2007
          • 1711

          #5
          Lehner, Feigao, Hacker, Nemesis, KB45 have 2 poles.

          Neu, Plett have 4 poles.

          Mega has 6 poles.

          I guess the KB45 is a Lehner 2250 clone.
          Last edited by ReddyWatts; 07-28-2007, 08:42 PM.
          ReddyWatts fleet photo
          M1 Supercat - Neu 1527 1Y, 8s / Mean Machine- Feigao 580, 8s, 120 HV esc
          Mean Machine - Feigao 540 14XL, 8s, 100 amp HV esc, X537/3

          Comment

          • seabassturd
            Member
            • Jul 2007
            • 45

            #6
            and the shark motors by mhz have 8 poles i believe

            Comment

            • steveo
              Fast Electric Addict!
              • Apr 2007
              • 1454

              #7
              i think the sv27 motor is 6 pole

              Comment

              • SJFE
                Fast Electric Addict!
                • Apr 2007
                • 4735

                #8
                I guess the KB45 is a Lehner 2250 clone.
                I can only hope :)

                Comment

                • ReddyWatts
                  Fast Electric Addict!
                  • Apr 2007
                  • 1711

                  #9
                  Look at the specs.

                  Lehner 2250 - 10 turn - 2 pole
                  size - 44mm/81mm
                  Power(Watts)----/---Amps ---/KV / Weight
                  3000 Watts / 50-100 Amps / 1184 / 560g


                  KB45 - 10 turn - 2 pole
                  size - 45mm/77mm
                  Power(Watts)/---Amps --/KV / Weight
                  3000 Watts / ?? amps / 1200 / 555g

                  Maybe it will perform close.
                  Last edited by ReddyWatts; 07-29-2007, 09:15 PM.
                  ReddyWatts fleet photo
                  M1 Supercat - Neu 1527 1Y, 8s / Mean Machine- Feigao 580, 8s, 120 HV esc
                  Mean Machine - Feigao 540 14XL, 8s, 100 amp HV esc, X537/3

                  Comment

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