Implementation of Transformer Static Differential Relay with Harmonic Blocking.

Authors

Mohammed El Gamal, Elect. & Cathodic prot. Dept. Arab Petroleum Pipelines Co. (SUMED) P.O.Box:158 El-Saray, Alexandria
Ahmed Lotfy, Electrical & Comp.Control Eng. Dept. Arab Academy for Science & Technology & Maritime Transport P.O. Box 1029 Alexandria Egypt
Hussien Dessouki, Electrical & Comp.Control Eng. Dept. Arab Academy for Science & Technology & Maritime Transport P.O. Box 1029 Alexandria Egypt

Corresponding Author

El Gamal, Mohammed

Subject Area

Electrical Engineering

Article Type

Original Study

Abstract

In this paper a transformer static/electronic differential relay is implemented using second order active band-pass filters for detecting second harmonic ratio. Thus enabling a relay-blocking signal during transformer inrush current, also the relay allows for a fine adjustment of the differential characteristic curve to facilitate its use in variety of transformer ratings.

Recommended Citation

El Gamal, Mohammed; Lotfy, Ahmed; and Dessouki, Hussien (2020) "Implementation of Transformer Static Differential Relay with Harmonic Blocking.," Mansoura Engineering Journal: Vol. 31 : Iss. 1 , Article 16.
Available at: https://doi.org/10.21608/bfemu.2020.129250