DVR
HIEC DVR dynamic voltage recovery device is a new type of power electronic equipment developed by Shenzhen HISREC Electric Technology Co., Ltd. (HISREC) using advanced algorithms at home and abroad, which is applied to the control of power grid voltage sag, short-term interruption and temporary rise. When the voltage of the power supply system is normal, the load is powered by the internal thyristor of the device. When the power grid voltage is disturbed, the thyristor is quickly turned off, and the device enters the constant voltage source control mode to continuously supply power to the load. When the system voltage recovers, the device starts to modulate the load-side voltage in accordance with the system-side voltage parameters (frequency and phase angle). The whole process is smooth, without any disturbance to the load, so as to realize the function of dynamic control of voltage sag, short-term interruption and temporary rise of power supply system. In addition, the device also has the functions of dynamic compensation of reactive current and suppression of power harmonics, which can comprehensively manage and improve the power quality of users.
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