Current Transformer- Error measurement

classic Classic list List threaded Threaded
3 messages Options
SGM
Reply | Threaded
Open this post in threaded view
|

Current Transformer- Error measurement

SGM
Hi All,
I am trying to implement a function for measurement of current transformer error as per paper titled "Determine Current Transformer Suitability Using ATP" by Ralph Folkers. 

The ratio measurement is ok - but not getting phase angle measurement as per the paper.

Need some help in resolving this.

 What I am getting is as follows:
image.png
What is expected is as follows:
image.png
Regards,
Swagata



ct_error.m (2K) Download Attachment
TRACES2.mat (481K) Download Attachment
Reply | Threaded
Open this post in threaded view
|

Re: Current Transformer- Error measurement

dev1990
Adjust the x and y axes scales properly. And the original picture might have been produced in MATLAB, if you are worried about cross markings.

On Sun, Dec 13, 2020, 4:47 PM swagata Mukherjee <[hidden email]> wrote:
Hi All,
I am trying to implement a function for measurement of current transformer error as per paper titled "Determine Current Transformer Suitability Using ATP" by Ralph Folkers. 

The ratio measurement is ok - but not getting phase angle measurement as per the paper.

Need some help in resolving this.

 What I am getting is as follows:
image.png
What is expected is as follows:
image.png
Regards,
Swagata



Reply | Threaded
Open this post in threaded view
|

Re: Current Transformer- Error measurement

BGreen

On Sun, Dec 13, 2020 at 6:26 AM Debajyoti Datta <[hidden email]> wrote:
Adjust the x and y axes scales properly. And the original picture might have been produced in MATLAB, if you are worried about cross markings.

On Sun, Dec 13, 2020, 4:47 PM swagata Mukherjee <[hidden email]> wrote:
Hi All,
I am trying to implement a function for measurement of current transformer error as per paper titled "Determine Current Transformer Suitability Using ATP" by Ralph Folkers. 

The ratio measurement is ok - but not getting phase angle measurement as per the paper.

Need some help in resolving this.

 What I am getting is as follows:

What is expected is as follows:

Regards,
Swagata





You can change the axis tick marks with the xtick property, and the limits with xlim. There also appears to be a grid color property.

These can be changed with something like:
set(gca, "property", value)