Deckel gk21
Close
Login to Your Account
Results 1 to 7 of 7

Thread: Deckel gk21

  1. #1
    Join Date
    Jul 2017
    Country
    ALAND ISLANDS
    Posts
    13
    Post Thanks / Like
    Likes (Given)
    6
    Likes (Received)
    1

    Default Deckel gk21

    Hi all,
    I bought a deckel gk21 with a 3 phase 230v dahlander motor. My workshop has 3 phase 400v. What s my best option?
    Thanks
    Simon

    Verstuurd vanaf mijn SM-G930F met Tapatalk

  2. #2
    Join Date
    Jul 2017
    Country
    ALAND ISLANDS
    Posts
    13
    Post Thanks / Like
    Likes (Given)
    6
    Likes (Received)
    1

    Default

    I would kind of like to keep the workshop and the original motor...

    Verstuurd vanaf mijn SM-G930F met Tapatalk

  3. #3
    Join Date
    Nov 2004
    Location
    SLC, UT
    Posts
    806
    Post Thanks / Like
    Likes (Given)
    1155
    Likes (Received)
    215

    Default

    You could use a 3 phase transformer or a VFD, many VFDs will let you vary the output voltage via programming parameters in the VFD software.

    The transformer would likely be the best option if you want to "stay factory", as the Deckel pantographs I have observed use some complicated switching of the motor leads to accomplish different speed ranges. If you opt for a VFD, then it would be best practice to bypass the Deckel speed range switching and control the speed of the motor using the VFD.

  4. Likes simonsaelaert liked this post
  5. #4
    Join Date
    Jul 2017
    Country
    ALAND ISLANDS
    Posts
    13
    Post Thanks / Like
    Likes (Given)
    6
    Likes (Received)
    1

    Default

    Quote Originally Posted by Colt45 View Post
    You could use a 3 phase transformer or a VFD, many VFDs will let you vary the output voltage via programming parameters in the VFD software.

    The transformer would likely be the best option if you want to "stay factory", as the Deckel pantographs I have observed use some complicated switching of the motor leads to accomplish different speed ranges. If you opt for a VFD, then it would be best practice to bypass the Deckel speed range switching and control the speed of the motor using the VFD.
    Can you tell what kind of transformer i would need?



    Verstuurd vanaf mijn SM-G930F met Tapatalk

  6. #5
    Join Date
    Sep 2011
    Country
    GERMANY
    Posts
    3,638
    Post Thanks / Like
    Likes (Given)
    2421
    Likes (Received)
    1454

    Default

    Motor is rated 0.37/0.5kW. So you would need a three-phase 400V to 230V transformer with a power rating of at least 500W. Personally I would look for something with a power rating about twice that, say around 1kW. They turn up on German Ebay from time to time at reasonable cost.

  7. #6
    Join Date
    Jul 2017
    Country
    ALAND ISLANDS
    Posts
    13
    Post Thanks / Like
    Likes (Given)
    6
    Likes (Received)
    1

    Default

    What pricerange are we talking? Reasenable for one isnt reasenable for the other maybe...

    If you bump into one, dont hasitate to forward the link...
    My german ist erbamlich...

    Thnx in advace.
    Simon saelaert

    Verstuurd vanaf mijn SM-G930F met Tapatalk

  8. #7
    Join Date
    Oct 2002
    Country
    UNITED STATES
    State/Province
    Florida
    Posts
    1,229
    Post Thanks / Like
    Likes (Given)
    177
    Likes (Received)
    307

    Default

    My GK-21 motor is 480 3 phase. My shop has 240 single phase. I had on hand a rotary phase generator that produced 240 3 phase. I used two single phase transformers 240/480 hooked up in a fashion to transform 3 phase to 3 phase. I can not supply a wiring diagram for the connection. A competent electrician or electrical engineer should be able to provide a wiring diagram. My computer engineering son sketched out the wiring diagram and wired the transformers for me in a matter of minutes. I bought the transformers new for a very reasonable price. This type connection derates the transformers.


Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •