A NOVEL TRANSDUCER FOR MONITORING SURGE CURRENTS IN AC MAINS: Expectations and Reality
نویسندگان
چکیده
The proliferation of surge-protective devices and switch-mode power supplies has radically changed the surge environment in the low-voltage AC mains. Monitoring surge voltages has lost significance and can be misleading. Instead, surge currents should be monitored. The paper describes the performance of a silicon-based surge-protective device acting as a "magnet" for impinging surges in the presence of multiple metaloxide varistors. This "magnet" is the first step toward the development of a transducer producing a voltage signal reflecting the surge current that can be delivered by the power system. That signal can then be applied to the voltage input of existing power quality monitors.
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