×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Related to Transformer Vector Group

Related to Transformer Vector Group

Related to Transformer Vector Group

(OP)
Dear All,

Greetings for the day...!!!

As i am an Electronics Engineering, and we are in testing and measuring instruments fields which are useful to test Transformer, AC Induction Motor, Submersible Pump and Other Electrical Appliances.

One of Our Product is Transformer Turns Ratio, In that we want to add feature of Automatic Vector Group Detection. I know all methods to detect but my question is as below.

If we take as example Dyn1 Vector Group Transformer then as theory states 30 degree Phase Shift between HV Winding Voltage and LV Winding Voltage.
But if i measure this Phase Shift then i got 0 degree in stead of 30 degree. I have checked on different different vector group but i got 0 degree.

If i measure angle between two phase then i got 120 degree if it is star connected winding and 60 degree if it is Delta Connected Winding.

So if 30 degree or other phase shift is occurs then it create between what?

RE: Related to Transformer Vector Group

From your description, it is not easy to understand the operation the operation of your device. Is there a drawing available? It would help understanding a lot. For instance, does it produce a voltage and if so, is that a three-phase voltage?

Gunnar Englund
www.gke.org
--------------------------------------
Half full - Half empty? I don't mind. It's what in it that counts.

RE: Related to Transformer Vector Group

Are you measuring Phase-Phase (or Line) voltages on the y side ?

There is no vector shift in each individual winding - but on the y side.

When you measure (say) V a-b on the y side, and then compare it to V A-B on the D side, there will be 30 deg shift

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources