ControlElectrical Wiring InstallationMotors

Three Phase Motor Connection Star/Delta (Y-Δ) Reverse / Forward with Timer Power & Control Diagram

Three Phase Motor Connection Star/Delta (Y-Δ) Reverse and Forward with Timer Power & Control Diagram 

As we have already shared the Starting method of Three Phase Motor by Star Delta Starter with Timer Circuit (Power and Control Circuits). Now in the below diagrams, Three phase Motor will rotate in two directions viz Forward and Reverse. But We have controlled the direction of rotation of this three phase motor by a Timer circuit

O/L = Over Load Relay
NO = Normally Open
NC = Normally Close
FOR = Forward
REV = Reverse
T = Timer

3 Phase Motor Connection Star/Delta (Y-Δ) Reverse / Forward with Timer Power Diagram

Power Diagram:

Three Phase Motor Star/Delta (Y-Δ) Reverse / Forward with Timer Power Diagram

3 Phase Motor Connection Star/Delta (Y-Δ) Reverse / Forward with Timer Control Diagram 

Control Diagram:

3 Phase Motor Connection Star/Delta (Y-Δ) Reverse / Forward with Timer Control Diagram
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  1. sunil desai says:

    i want to information about internal connection of star delta motor and how to shift phase shifting from star to delta describe wit diagram

    1. sameer warsi says:

      How to cnnected stardelta connection in motor so explain

    2. how to derivate stardelta cannection in moter terminal .uvw.u1v1w1. with RYB

  2. Irfan Khan says:

    Wonderful !!!!!!!!!!!

    Thanks for this……….

  3. ajeet mishra says:

    electricion ltl in gorment scool

  4. I want to information about scoop technology.Used in power plants

  5. Brian pate says:

    Plz I wanna learn phase failure circuit

  6. May you please send all these diagrams to me to 3phase termination diagrams and control diagrams to this email address thank you

    1. Electrical Technology says:

      You can subscribe by email (In the top right sidebar) and we will send each article in your Inbox. Thanks

  7. Bipin Danawale says:

    Sir we will done connection as per diagram but will show something wrong…the auxiliary was not what correction we will do ?

  8. fernan mallo says:

    sir can i ask you to send me a diagram of wye delta connection,3 phase,thankyou

  9. khan helal says:

    i want that me electrical any knowlage absorbe in mind plz help me thank you

  10. I have almost forgotten what I was told in the late 90’s
    I am one of those electrosensitive people and much of what basic science says about new technology is wrong.
    Different names have been used which confuses..
    Brushless motors inverters particle accelerator free energy devices zero point energy reverse technology motor.
    Transformers have been replaced with these devices.
    That means wind turbines air con systems solar panels
    Computers and mobile phone don’t comply to EMC EMI and human exposure to electromagnetic fields.
    The U.K. Government removed Radiocommunications agency and BT’s equivalent in 2002 to save money.
    Trading Standards OFCOM and (TV detector vans)
    have not a clue.
    There is nowhere to report the problems too.
    I contacted “Central Networks ” some years ago and told them that technology was not complying to the Law.
    They said it was the governments fault.
    The above devices produce power surges in the mains supply the transformer is either taken away or reduced in size to allow the device to generate more power off scale. The electricity companies can check the mains down to 20Hz they use to rely on Radiocommunications checking for radiation below this. As it is there is not much done about power surges below this. They delt with military and civilian technology. There is no one measuring military technology.
    Confusion between low frequency or a different phase
    Or polarity has confused.
    Truly there is no such thing as frequency.
    The aircraft industry are well aware.
    The Mod complained about wind turbines interfering with RADAR the government took no notice. The Mod then turned the power up on the RADAR.
    It’s apsolute hell living near a factory or supermarket.
    The air con give’s of huge levels of noise.
    I spoke to London Underground and network rail they regonise there is a problem with talk back. But the government have removed the legislators and left the legistion. Industry is not going to cut its own nose off.
    This radiation causes inverted T waves in the heart.
    Which cause heart attacks and strokes.
    Dr Henry Lai.. It’s also effecting the environment.
    The Mod gaged the police when they complained about the radiation from their radios called Tetra.
    What price for so called new technology.

  11. may you please sent all these diagrams to me to 3 phase termination diagrams and control diagrams to this email address thank you

  12. Nilesh Dhabale says:

    I want knowledge about contactor logic,relay,SSR …etc
    Plz send me details with ckt diagram.

  13. Hi may u plz send me all 3 phase power & control diagrams circuits & interpretation of wired circuits

  14. have subscribed with my email but i dont recieve any messages from this website, pls this is my mail

  15. pls also need to knw more about plc and automaition

  16. richard sabah says:

    teach me how to use old washing machine motor to generate power

  17. Can you please send me the diagram and explain how to connect 2 three phase motors in sequence start wher you can only start the second motor 10 seconds after starting the first motor

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