Hello,
I am looking for the following article but was not able to locate it.
Does anyone knows where can I get it ?
Author is N.E. Korponay and title is " the transient behaviour and use of current transformers". It comes from brown bovery review, 1975.
Thanks in advance.
G'Day,
I am dealing with setting schedule for generator protection.
For LOF (ANSI 40) one customer request to get the protection locus among the P/Q capability diagram.
What I get used to is to compute and draw the characteristic within the R/X diagram.
Do you have experience with the P/Q...
This is a IEC world background question.
Class X CT were firstly define in British Standard 3938 now obsolete.
High Z scheme ( such as REF) are still use, therefore the need for such CT.
Such CT call for Vk, Rct and Imag requirements.
IEC 60044-1 define class PX with the same requirements...
Hello,
I am dealing with specification of CT cores in order to ensure the correct operation of protective relays.
The specification is mainly done in accordance with IEC 44-1 (formerly IEC185) and also IEC 44-6.
A required data is Rct (internal secondary resistance of the CT).
Estimation of...
I went acrros several generator data sheets.
A standard capability curve is "voltage vs. frequency operating limits".
I do understand there is a min. and a max. values for both frequency and voltage.
I also understand there is 2 limits zones : one for permanent operation whithin the second one...
