1). Feature:
This series large power voltage stabilizer is an energy-saving new product developed by our company by absorbing the advanced technology of Western Europe. It is provided with two systems of manual or automatic dual control, direct output and stabilizing output with the functions of over/under-voltage protection, delay and error protection etc., it is reliable and suitable for any load.

2).Application:
It is widely used in the place with large electricity demands such as factories, post & communication, schools, hotel etc., acted as whole voltage-stabilizating  or single voltage-stabilizing.

3).Specification:
Phase No.: Three phase four system, three phase controlled system together
Input voltage:
                         Phase voltage 220V± 20%(176~264VAC), wire voltage 380V± 20%(304~356VAC);
                         Phase voltage 220V± 25%(165~275VAC), wire voltage 380V± 20%(285~475VAC)(Optional)
                         Phase voltage 220V± 30%(154~286VAC), wire voltage 380V± 30%(266~494VAC)(Optional)
Note: for other super lower input voltage(Vi), we'll specially designed by ourselves, namely adding one step-up boost transformer outside AVR or other designed well!
Output voltage: Phase voltage 220VAC(stabilized), wire voltage 380VAC(stabilized)
Accuracy of voltage: +/-2~5%(adjustable)
Frequency: 50Hz/60Hz
Efficiency: >95%
Response time: <1.5S(against 10% input voltage deviation)
Ambient Temperature:  -10~+40Cº
Insulation resistance: >2MΩ
Waveform distortion: Non additional waveform distortion
Protection: Over-voltage/under-voltage, over-current/over-loading, short-circuit, bypass, surge(optional), 
                      Phase-sequence/phase failure, machine fault etc. protection functions.
Over-load capacity: 1min. At the rated current of 2times
Electricity-resistance strength: Power frequency sinusoidal is 2000VAC without breakdown and flash
                                                           over when it lasts 1min.

4).Remarks:
Custom-made specifications are acceptable, such as mains input voltage range, display mode (analog or digital meter), products' rings or packing material etc., when ordering, pls specify!!!