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POWER TRANSFORMER PROTECTION PAST, PRESENT AND FUTURE


VASILIEVICI ALEXANDRU*, BALASIU FLORIN**, MORARU GHEORGHE***
* UNIVERSITTATEA POLITEHNICA TIMISOARA, ** ST SIBIU, *** SMART SIBIU

Issue:

MOCM, Number 9, Volume II

Section:

Issue No. 9 - Volume II (2003)

Abstract:

The paper analysis the power transformer protective systems evolution beginning with electro-magnetic relays until numerical protection terminals. A comparison between advantages and disadvantages of electro-mechanical relays and numerical protection terminals focused on the differential protection is shown. The paper also includes a block diagram of a numerical protection terminal for the 110 kV / medium voltage power transformers.

Keywords:

Differential protection, numerical protection terminal.

Code [ID]:

MOCM200309V02S01A0048 [0001016]


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