Title :
Effects of loss of time synchronization in differential protection of transformers using process bus according to IEC 61850-9-2
Author :
Igarashi, G. ; Santos, J.C.
Author_Institution :
Escola Politec., Univ. de Sao Paulo, Sao Paulo, Brazil
Abstract :
Our aim is to show the results from a mathematical simulation of the behavior of a differential protection algorithm for power transformers compared with the loss of the time synchronization signal in the process bus according to IEC 61850-9-2. Described herein are an original model for simulating the samples in the process bus, a proposed algorithm for differential protection of power transformers adapted for protective relays operating with process bus according to standard and response analysis of the protection algorithm from this loss of sync.
Keywords :
power transformer protection; relay protection; synchronisation; IEC 61850-9-2; differential protection algorithm; mathematical simulation; power transformers; process bus; protective relays; response analysis; time synchronization signal; Circuit faults; Current measurement; Discrete Fourier transforms; IEC standards; Power transformers; Relays; Synchronization; IEC 61850-9 Standard; ethernet networks; instrument transformers; power system protection; telecommunication network reliability;
Conference_Titel :
Innovative Smart Grid Technologies Conference Europe (ISGT-Europe), 2014 IEEE PES
Conference_Location :
Istanbul
DOI :
10.1109/ISGTEurope.2014.7028753
