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  1. kensea

    Motor-Operated control valves??? it's proper??

    TAGE It may pay to consider the environmental conditions that the intended actuator is going to be installed in and if the presence of electrical energy is ok. Recently we had an actuator explode, through an insufficent IP rating for process environmental conditions, ingress of moisture and...
  2. kensea

    Missing link - Star/Delta

    Thanks to all who replied aolalde I appreiciate your time, cause of that double transposing of phase rotation you explained, to me it seems the motor would reverse in the wye/delta changeover, but, this vendor must sell lots of these units and l have researched similar schematics from other...
  3. kensea

    Missing link - Star/Delta

    Thanks again aolalde Yes, makes sense and was my take on the situation. I have drawn, drawn and redrawn the circuit and found my point of confusion. I was swapping the phase connection wires to the motor terminals (L1 to T2, L2 to T1 & L3 to T5, L1 to T4) and not interposing the motor lead...
  4. kensea

    Missing link - Star/Delta

    Thank you to both aolalde and Marke for your responses, that really had me stumped. Marke Thanks for the insight to the intrigate workings at play, that's what l love about the electrical industry and what is the driving force behind becoming an engineer, to get away from the "she'll be right"...
  5. kensea

    Missing link - Star/Delta

    Hello all First l'd like to thank you all, having been an avid viewer of this site for 1 and a half years l have gained much valuable knowledge. As an electrician, but budding engineer l hope l'm not intruding on your forum. My question pretains to reversing motor direction when using...

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