SBW-30KVA—600KVA, 3Phase

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SBW series three phase full automatic compensated power voltage stabilizer applicant to when the power network fluctuates or the load current varies, it can keep output voltage in steady state automatically, compared with other voltage stabilizers, it has the advantage of large capacity, high efficiency, no wave distortion, stable voltage adjustment, suitability for kinds of loads, bearing instantaneous overload, working continually for long time, as well as free transferring between manual control and automatic control etc., besides, it is provided with protection against over-voltage, over current, phase failure/phase sequence, delay and error protection etc, and has following merits: small volume, light weight, convenient installation and relit is reliable running and so on.



It’s widely used in post and telecommunications, department stores, elevators, hospitals, schools, printing, securities and other occasions where all needs normal voltage to ensure, such as workshop, mines, medium enterprises, some of the important equipment and computer power and support.

Technical specifications:

Phase No: Three-Phase Four wire System
Input Voltage Phase voltage: 220V ±20% (176~264V), line voltage: 380V ±20% (304~456V)
(If input voltage ±25% required by customers, please specify when ordering.)
Output Voltage Phase voltage: 220V, line voltage: 380V
Output Accuracy +2~5% adjustable (Default: 3%)
Frequency 50Hz/60Hz
Efficiency >95%
Response Time ≤1.5s(against 10% input voltage deviation)
Ambient Temprature -10°C~+40°C
Relative Humidity <95%
Insulation Resistence ≥2MΩ
Withstand voltage 2000V/min.
Overload Double rated current, one min.
WaveFoam Distortion No additional waveform distortion
Protection function Bypass (city power) system, over-voltage, over-current,over-load,
time-delay, machine fault, phase sequence & surge(optional) etc.


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