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In world of industrial electrical engineering, the efficiency and reliability of drive systems are crucial. Start-up of induction motors, especially high-power ones, requires limiting of starting currents that can negatively affect the supply network and the motor itself. One of popular and proven solution is the use of a star-delta 0-Y-Δ system, which requires appropriately […]

Direct starter or Direct on-line (DOL) is the simplest form of motor starter. This method starting cage motors, the motor is connected using a starter across the full supply voltage. Depending upon size and design, motor might takes a low-power starting current about 5 to 7 times its full-load current. In normal conditions such currents […]