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What these valves on ships actually do, pressure, vacuum, and a tanker failure explained
These tall valves on tankers are critical safety devices designed to control pressure and vacuum inside cargo tanks. Using a real incident aboard Fairchem Philly, this explains how PV valves and PV ...
Abstract: This study proposes to utilize a permanent magnet synchronous motor drive as the operating mechanism in medium-voltage vacuum circuit breakers. Electric motors are easy-to-control actuator, ...
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