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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DVR

Product Description

- Commodity name: 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.

product features
1, wide voltage compensation range: when the system has high and low voltages of 0-130% p.u., it can ensure constant voltage on the load side.
2. Fast response speed: The response speed of the whole machine is less than 1ms, which meets the requirements of any load.
3. Strong impact resistance: The impact current within 7 times of the load has no effect on the DVR.
4, multi-function: not only can control the voltage disturbance problem, but also can compensate the power factor and filter out harmonics.
5, high efficiency: the efficiency of the whole machine is more than 99%, saving a lot of electricity.
6, long life, maintenance-free: the whole design life of more than 15 years, the whole without maintenance.
7. Strong adaptability: It can operate normally in any industrial load place.
8. Small floor area: it is the 1/4 floor area of UPS with the same capacity.