ZP-STB intelligent voltage regulation and power saving device is a device for the end load, can keep the end output voltage stable, can control 380V±3%(can be customized, adjustable). It has voltage regulation and mains output mode, and the voltage regulation time is less than 1S.

It can effectively solve the problem of input voltage fluctuation of end-load power supply, and optimize the power factor of end-load, three-phase imbalance, harmonic power quality, and improve the overall power quality. Most of the harmonics are eliminated by input, and the parallel resonance with the system will not occur after installation of the device. Improve the power quality of the system, improve the overall efficiency of equipment operation and power energy use efficiency. Thus reduce transformer loss, avoid harmonic caused by transformer heating and noise, improve power quality, reduce equipment failure, reduce maintenance costs. Improve the economic efficiency of electricity.

It can filter out any harmonic frequency between 2-50 times, reduce line loss and transformer loss, improve equipment heating, prevent various misactions caused by harmonics, extend equipment service life, and improve system safety, reliability and stability. Reduce the heat output of line and cable, improve the service life and current carrying capacity. Reduce the failure rate of electrical equipment in the plant, ensure the stability and reliability of electrical equipment.

Functional features:

1) High voltage stability accuracy: using RMS true RMS sampling control board, the voltage stability accuracy is 1~3% adjustable.

2) The adjustment speed is fast: the response time is less than or equal to 0.04S, and the stability time is less than 1S. Filtering, reactive power compensation, and optimization of three-phase unbalanced response time only need 10ms.

3) Full protection functions: over-voltage, under-voltage, over-current, short circuit, overheating and other protection functions.

4) High efficiency of the whole machine: regulator efficiency ≥98%.

5) Stable control technology: advanced MCU measurement control, imported measurement chip design technology, accurate and stable system.

6) High degree of automatic control: the system automatic voltage regulation, filtering, compensation reactive power, delay start, automatic recovery function of fault relief.

7) Energy saving: improve the power factor to more than 0.95, reduce the harmonic content to 5%, optimize the three-phase unbalance current, so as to reduce the line loss and equipment loss, extend the service life of equipment;

8) Intelligent: intelligent control unit, three-phase unbalance, harmonic reactive power, voltage optimization and other working mode selection (can be a single output, can also be output at the same time). The target value and output current can be set;