Equivalent Transformer Z
Finding new equivalent transformer impedance is another application of ratio and proportion analysis use in real work of a power transformer engineer. Why this knowledge is important? Answer because when
when you parallel two or more transformers you need to make sure their % Z impedance are very close the reason for that is to make sure the parallel transformers divide the load ampere equally.
Another Problem:
Given 167 MVA %Z =6.23 existing or old transformer.
New Transformer 250 MVA will be paralleled to the existing transformer with 167 MVA rating, Compute the new equivalent %Z impedance in order to divide the load equally.
ANSWER %Z = 9.33 or close enough.
|
P new
P old
|
: = : |
% Z new
% Z old
|
IN-V-BAT-AI helps you recall information on demand—even when daily worries block your memory. It organizes your knowledge to make retrieval and application easier. 🔗
Source: How People Learn II: Learners, Contexts, and Cultures
| Year: 2026 | Top 10 countries | # Pages / Visitors |
| Daily Site Visitor Ranking 1/11/2026 | 1. USA 2. China 3. Japan 4. Australia 5. India 6. Brazil 7. Ukraine 8. Argentina 9. Canada 10. Poland | Year to Date 7,847 Pageviews 3,856 Unique Visitors |
Copyright 2026
Never Forget with IN-V-BAT-AI
INVenting Brain
Assistant or short cut Tools
using Artificial Intelligence
(IN-V-BAT-AI)
Since
April 27, 2009
April 27, 2009