| Product | |
|---|---|
| Brand | VECON/SAKO |
| Capacity | 1200KVA/960KW |
| Model | SBW-1200KVA |
| Type | Combined phase control |
| Input | |
| Phase | Three-phase |
| Voltage | AC 304~456V |
| Frequency | 50 Hz |
| Output | |
| Voltage | 380V ± 3% (Adjustable) |
| Frequency | 50 Hz |
| Protection | Over / Low Voltage, Delay, By-Pass (Optional), Short circuit & overload by a fuse |
| Efficiency | AC-AC > 95% |
| Environment | Humidity 20 % to 90%, Temperature -50 C ~450 C |
| Control System | Step-less control with servo motor |
| Cooling system | Natural Air cooled |
Application
A voltage regulator /Stabilizer designed to automatically maintain a constant voltage level; a Single/three-phase compensated voltage stabilizer is a contact adjustable automatic voltage compensation high power regulating power device. When the voltage from support network is varied due to loading current effected, it automatically regulates the output voltage to ensure the normal function of the varied of electrical & electronic equipment.
This product is suitable for small and medium-sized power needs to be regulated power electric equipment, is the industrial production, scientific research and medical and health fields such as ideal regulated power supply, its minimal power consumption, can be continuous use for a long time.
Main Features
• Automatic voltage regulation
• Protection against Low voltage & over voltage
• Wide input voltage range
• Short circuit & overload protection
• Selectable delay time
• Built-in transformer: servo motor
• Analog display
1. What is the SBW-1200 kVA AVR?
It is a high-capacity three-phase automatic voltage stabilizer designed for industrial and commercial applications.
2. What industries use SBW-1200 kVA?
Manufacturing, hospitals, data centers, textile mills, telecom, mining, public infrastructure, and large commercial facilities.
3. Is it single-phase or three-phase?
SBW-1200 kVA is a three-phase AVR.
4. What is the difference between SBW and SBW-F?
SBW-F offers independent phase regulation for better performance with unbalanced loads.
5. What is the input voltage range?
Typically 304V–456V for a 380V system (±20%). Wider ranges can be customized.
6. What is the output voltage?
Stable 380V ±2% under rated load.
7. How accurate is the voltage regulation?
Regulation precision is ±2%, adjustable if required.
8. What is the response time?
≤1.5 seconds for a 10% voltage fluctuation.
9. Can it handle overloads?
Yes, it supports 150%–200% overload for short durations.
10. What protections are included?
Overvoltage, undervoltage, overload, short-circuit, phase loss, phase sequence, and automatic bypass.
11. Does it have a bypass system?
Yes, it switches to mains supply if AVR function fails or is out of range.
12. What is the efficiency level?
High efficiency, usually ≥95%–98%.
13. Does it distort the waveform?
No, the output remains a clean sine wave.
14. What is the operating temperature range?
–10 °C to +40 °C under normal conditions.
15. What is the humidity limit?
≤90% relative humidity (non-condensing).
16. How is it installed?
Requires proper copper busbar or cable sizing according to load current.
17. What maintenance is needed?
Regular dust cleaning, brush inspection, tightening connections, and checking for overheating every 6 months.
18. What happens if a phase is missing or reversed?
The unit automatically shuts down to protect equipment.
19. Does it have a start-up delay?
Yes, a built-in delay prevents inrush current issues.
20. Can the input range be customized?
Yes, options like ±25% or ±30% are available on request.
21. What is the insulation strength?
Withstands 2000V for one minute without breakdown.
22. Can it run continuously 24/7?
Yes, it is designed for continuous duty operation.
23. What is the noise level?
Low operating noise, typically ≤55 dB.
24. What are the dimensions and weight?
Approx. 1710 × 1300 × 2000 mm, ~1935 kg (varies by manufacturer).
25. What is the enclosure rating?
Standard IP21 for indoor; IP54 available for outdoor models.
26. How does split-phase regulation work?
Each phase is stabilized independently, improving reliability with unbalanced loads.
27. What level of phase imbalance can it handle?
It tolerates moderate imbalance better than standard models, thanks to split-phase regulation.
28. How do I size the AVR correctly?
Choose 1.2–1.5× the total connected load to handle surges and future expansion.
29. What happens if voltage goes beyond the input range?
The AVR bypasses or shuts down to prevent damage to connected loads.
30. What warranty is offered?
Typically 1 year standard warranty with lifetime technical support.
