The results are given of a numerical evaluation of the equations corresponding to the output voltage from a surge absorber, as derived in Part I. Curves have been plotted to show how the constants of the absorber, and the capacitance of the capacitor simulating the transformer, affect the wave form of the incident surge.
As it is the main function of the surge absorber to reduce ‘the voltages induced in the apparatus connected to it, a comparison has been made between the stresses produced in a transformer due to a unit step surge with and without the presence of the absorber.
Get full access to this article
View all access options for this article.
References
1.
SakrM. M.MansourE. A. A. and GirgisR. S., ‘Simplified analysis of surge voltage distribution in power transformers, Paper No. C72 097-9, Winter Power Meeting, I.E.E.E., Jan. 1972.
2.
Lovass-NagyV., ‘A matrix method of calculating the distribution of transient voltages in transformer windings’, Proc. I.E.E., (1962), 109, p. 534.
3.
GirgisR. S., ‘Effect of surge voltages on the windings of power transformers’, M.Sc. Thesis, Ain-shams University, Feb. 1969.
