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Instead of using IGBT (insulated gate bipolar transistor) Growian first generation SCR, you can use pulse width modulation (PWM) to overcome poor harmonic performance. The technology also enables real power and reactive power control is more convenient. While traditional SCR very durable, today's SCR, such as Mitsubishi FT1500AU-240 can switch 1.5kA current at 12kV voltage, switching time of 15ms, but to maintain the current conduction when the current exceeds the value of the traditional can silicon is impossible to control off. GTO (gate turn-off) thyristors (such as Mitsubishi FG6000AU-120D) can provide continuous voltage and current 1.5kA 6 kV, and can achieve shutdown control within 30ms, but they are difficult to drive. To make matters worse, all the thyristors are difficult to be used in parallel, and to achieve a wind turbine generator required power levels used in parallel is often indispensable.20kva generator price 30kva generator price 50kva generator price 60kva generator price 75kva generator price 80kva generator price 90kva generator price 100kva generator price 125kva generator price 150kva generator price 180kva generator price 200kva generator price 240kva generator price 250kva generator price 300kva generator price 400kva generator price 500kva generator price 600kva generator price 800kva generator price 1000kva generator price 1250kva generator price 1500kva generator price 2000kva generator price 20kva generator price