About vector group concept of transformers

Click For Summary
The discussion centers on the vector group concept of transformers, specifically the Dy11 configuration, which indicates a 30-degree phase shift between primary and secondary voltages. Participants express confusion regarding the relationship between the phase of the primary and secondary coils, questioning how they can be in the same phase while also having a defined phase difference. Clarifications are sought on whether the discussion pertains to single-phase or three-phase transformers, highlighting the complexity of understanding vector groups. The conversation underscores the importance of accurately interpreting transformer configurations and their implications on phase relationships. Understanding these concepts is crucial for proper transformer application and analysis.
klmnopq
Messages
27
Reaction score
0
How we speak about the coil of primary in phase of a versus secondary coil
this is accepted (as there is on same core)

But question about
we say this transformer (ex) is vector group Dy11
that means phase difference between primary and secondary voltage is 330 angle
!

It's conflicted with that versus coil are the same phase

!
 
Engineering news on Phys.org
I have no idea what you are asking - DY11? Delta Wye? --- first part of your question seems to be about a single phase transformer, then second part a 3 phase?
 
Thread 'I thought it was only Amazon that sold unsafe junk'

Thread 'I thought it was only Amazon that sold unsafe junk'

I grabbed an under cabinet LED light today at a big box store. Nothing special. 18 inches in length and made to plug several lights together. Here is a pic of the power cord: The drawing on the box led me to believe that it would accept a standard IEC cord which surprised me. But it's a variation of it. I didn't try it, but I would assume you could plug a standard IEC cord into this and have a double male cord AKA suicide cord. And to boot, it's likely going to reverse the hot and...
View full post »

Similar threads

I Don't Understand Transformers/How to Apply Them
  • · Replies 81 ·
3
Replies
81
Views
8K
Clock face notation of a Transformer's "Vector Group"
  • · Replies 8 ·
Replies
8
Views
6K
Why is impedance given as a simple Ohms unit when it's frequency dependent?
  • · Replies 10 ·
Replies
10
Views
2K
Transformer equations under load
  • · Replies 3 ·
Replies
3
Views
2K
How does back EMF contribute to the operation of an autotransformer?
  • · Replies 64 ·
3
Replies
64
Views
7K
Transformer: single primary coil and multiple secondary coils
  • · Replies 3 ·
Replies
3
Views
4K
Need a little help (transformer)
  • · Replies 56 ·
2
Replies
56
Views
6K
Motor / transformer variable frequency control
  • · Replies 11 ·
Replies
11
Views
3K
Calculating the mutual coupling coefficient of E cores
  • · Replies 47 ·
2
Replies
47
Views
8K
Ampere turn balance (MMF balance) in transformers
  • · Replies 36 ·
2
Replies
36
Views
12K