Microprocessor based phase and fault identifier

Autor: S.C. Kar, A. K. Mukhopadhyay
Rok vydání: 1992
Předmět:
Zdroj: Electric Power Systems Research. 23:139-145
ISSN: 0378-7796
DOI: 10.1016/0378-7796(92)90061-5
Popis: In this paper, a microprocessor based scheme has been developed for indicating phase sequences and the single-phase condition together with line to line, line to ground and double phase to earth faults of a three-phase supply and circuits. The system provides necessary information regarding the particular phase which is open under single phasing. The system is also capable of identifying various fault conditions of the supply, stating the particular phase or phases under fault. The proposed system avoids confusion in detecting different conditions of supply and faults, displaying appropriate symbols on the display screen. The system proves to be simple in construction and in use, reliable in operation, sophisticated and fast in action. This arrangement indicates the nature of the fault well before the conventional protective system starts to act.
Databáze: OpenAIRE