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[1-phase motor] - Starting capacitor and distance from the motor terminals

piotreks-89 4953 6
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 16267979
    piotreks-89
    Level 12  
    Hello!
    I am converting the manual control system of electric winches with single-phase motors to automatic (2 contactors per motor - you need to change the direction of rotation). As the motors will be about 30-40m away from the electrical cabinet each, I decided to lead them to them with a four-wire cable (for each tap), and leave the starting capacitors in the cabinet by the contactors.

    I realize that the starting capacitors should be connected as close to the motors as possible, in fact the only alternative I see now is to leave the starting capacitor permanently connected with one terminal to Z1 and the other one will be on the wire going to the cabinet. What do you think about it?
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  • #2 16268100
    kortyleski
    Level 43  
    What kind of winches are they? Recently, today I put four of them on the control from one place ? and the capacitors were built in the remote controls. It controls three wires and I installed the capacitors at the motors.
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  • #3 16268141
    piotreks-89
    Level 12  
    They are to be typically Chinese winches with 0.5kW single-phase motors (specifically DWI 125 / 250kg 230V). I need to control six such motors from one control cabinet while maintaining the ability to control directions.

    Maybe a colleague to explain the control method? My colleague left the power cord and replaced it only a switch or all the wires from the engine go to the control panel?
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  • #4 16269478
    kortyleski
    Level 43  
    Everything goes to the headquarters. Neutral, two phase (top / bottom) and protective. A little later I will paste the diagram.
  • #5 16275872
    piotreks-89
    Level 12  
    It's like - will a friend send a diagram? :) I have already drawn the control for the motor with two identical windings, but from what I found out, these motors have a starting winding with a higher resistance.
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  • Helpful post
    #6 16276455
    kortyleski
    Level 43  
    They have the same. Common to N, capacitor to extreme. Krancowki in series. I will paste the diagram in a moment. Honestly, I forgot ...

    Added after 1 [hours] 9 [minutes]:

    [1-phase motor] - Starting capacitor and distance from the motor terminals
  • #7 16354060
    piotreks-89
    Level 12  
    The motors have the same windings. My colleague's diagram came in handy. Problem solved - thank you for your help and I'm closing the thread! :)

Topic summary

The discussion revolves around the conversion of manual control systems for electric winches with single-phase motors to an automatic system. The user plans to place starting capacitors in the control cabinet, approximately 30-40 meters away from the motors, and seeks advice on the implications of this setup. Responses indicate that while it is ideal to keep starting capacitors close to the motors, it is feasible to connect them in the cabinet with one terminal linked to the motor. The motors in question are Chinese winches with 0.5kW single-phase motors (DWI 125 / 250kg 230V). A control method involving a neutral wire, two phase wires, and protective wiring is discussed, along with a diagram that clarifies the connections.
Summary generated by the language model.
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