سال انتشار: ۱۳۹۰

محل انتشار: نوزدهمین کنفرانس مهندسی برق ایران

تعداد صفحات: ۴

نویسنده(ها):

Hamid Radmanesh – Electrical Engineering Department, Amirkabir University of Technology, Tehran, Iran
Seyed Hamid Fathi – Electrical Engineering Department, Amirkabir University of Technology, Tehran, Iran
Rozbeh Kamali – Electrical Engineering Department, Aeronautical University of Science& Technology
Mehrdad Rostami – Electrical Engineering Department, Shahed University, Tehran-1417953836 , Iran

چکیده:

Ferroresonance overvoltage is an unwanted electrical phenomenon, which may cause over voltages and over currents in the electrical power. This paper studies the effect of circuit breaker shunt resistance, and Metal Oxide Surge Arrester (MOSA) on the control of chaotic ferroresonance in a Potential transformer (PT). It is expected that this resistance, and MOSA generally can cause ferroresonance ‘dropout’. For confirmation this phenomenon, simulation is investigated on a one phase potential transformer rated 100VA, 275kV. Simulation results reveal that considering shunt resistance on the circuit breaker and MOSA in parallel with potential transformer exhibits a great mitigating effect of ferroresonance over voltages. Significant effect on the onset of ferroresonance, the range of parameter values that may cause to chaotic ferroresonance is obtained and presented