In modern industrial and commercial environments, grid voltage fluctuations, sags, surges, and three-phase imbalances are common occurrences. Particularly in rapidly developing economic regions, low voltage during peak hours and high voltage at night can leave various electrical devices in a chronically "sub-optimal" operating state. Incomplete statistics indicate that over 30% of factory equipment failures stem from power quality issues; the direct and indirect losses resulting from voltage anomalies such as production interruptions, scrapped products, and repair or replacement costs often far exceed the purchase price of the voltage regulator itself.
The SBW 3 Phase 15KVA Servo Motor AVR builds upon the proven reliability of the SBW series' servo motor and carbon brush regulation technology. Integrated with an intelligent CPU control board, it tracks input voltage changes in real-time, responds rapidly (within 0.1 seconds), and automatically adjusts compensation voltage to maintain a stable output of 380V, 400V, or 415V (user-configurable). Its core advantages include:
· Optimized Capacity: With a 15kVA rated capacity, it can power multiple devices simultaneously—such as a small packaging line, two laser cutters, three industrial robots, or the lighting and air conditioning systems for an entire office floor effectively avoiding the inefficiencies of undersized units struggling with heavy loads or oversized units wasting resources.
· Independent Three-Phase Regulation: Each phase is sampled and controlled independently. Even with severe three-phase load imbalances, the unit stabilizes the voltage of each phase separately, eliminating the risk of burning out single-phase equipment due to excessive voltage on any one phase.
· Significant Energy Savings and Cost Reduction: With an efficiency of ≥96% and extremely low internal power loss, it minimizes electricity expenses during long-term operation.
Furthermore, stable voltage significantly reduces copper and iron losses in inductive loads such as motors and compressors thereby extending equipment maintenance intervals and delivering substantial overall energy-saving benefits.
| Model | SBW-15KVA |
|
Parameter |
Value |
|
Nominal Power |
15KVA |
|
Technology |
Servo motor type |
|
Phase |
Three Phase |
|
Input Voltage |
380V/400V/415V±20% ( wider range is available subject to special request and higher cost) |
|
Output Voltage |
380V/400V/415V |
|
Output Precision |
3% |
|
Frequency |
50/60Hz |
|
Efficiency |
≥96% |
|
Isolation Grade |
Grade A |
|
Dielectric Strength |
AC 2000V/1min no flashover, no break down |
|
Response speed |
0.1s |
|
Waveform Distortion |
<0.1% output waveform distortion, No Incremental Harmonic |
|
Temperature rising |
Net Temperature rising: <60℃ |
|
Regulation method |
Seperative regulation of each phase, automatic balance phase output |
|
Display |
Digital LED display, display real time phase voltage |
|
Wiring |
Three phase four wire(A,B,C Neutral,Grounding) |
|
Protection |
overload,high voltage, low voltage, short circuit, over heat protection,lack p[hase protection,bypass function |
|
Cooling Method |
Intelligent cooling fan |
|
Operation Temperature |
-5℃～40℃ |
|
Relative Humidity |
<90% |
|
Dimension(mm) |
500380670 |
|
Net Weight(kgs) |
50 |
|
Remarks: |
The above specifications are based on factory standard specifications, customized designs are available subject to confirmation. |
From an installation and maintenance perspective, the 3-Phase 15kVA Servo Motor AVR features a compact, integrated cabinet design (measuring just 500×380×670mm with a net weight of 50kg), making 3 Phase 15KVA Servo Motor AVR easy to transport and position. It incorporates intelligent cooling fans and multiple protection mechanisms (overload, over-voltage, under-voltage, short-circuit, overheating, phase loss, and bypass functions), enabling unattended, automatic operation. A digital LED screen displays real-time voltage for each phase, facilitating easy inspections by operations and maintenance personnel.
KTAC TECHNOLOGY understands that when customers purchase our equipment, they are investing in peace of mind and efficiency. Consequently, the SBW-15kVA comes with a standard 2-year warranty and supports a remote monitoring interface (optional RS485), allowing you to monitor voltage quality at any time. We also offer flexible customization services for customers with specific voltage range or functional requirements.
With a rated capacity of 15kVA, 3 Phase 15KVA Servo Motor AVR handles approximately 50% more load power than 10kVA models. It is ideal for facilities requiring simultaneous power supply to multiple devices, such as medium-sized processing plants, supermarkets, hospital radiology departments, and data centers.
It features an input voltage range of ±20%, an output voltage accuracy of ±3%, and a response time of less than 1 second (for a 10% input change). It effectively filters out voltage spikes and sags, ensuring stable equipment operation and reducing downtime caused by faults.
The 3-Phase 15kVA Servo Motor AVR utilizes phase-independent regulation technology. Each phase is controlled separately to automatically balance the three-phase output, preventing equipment damage caused by single-phase over-voltage or under-voltage. It is particularly suitable for mixed-load scenarios involving lighting, air conditioning, and motors.
It boasts an efficiency of ≥96% and waveform distortion of <0.1%; it generates no additional harmonics and causes no pollution to the power grid. A low-loss design reduces long-term operating costs and aligns with corporate energy conservation and emission reduction goals.
Integrates protections against overload, over-voltage, under-voltage, short-circuit, overheating, and phase loss, along with an automatic bypass function. In the event of an anomaly, the system automatically switches to bypass power to ensure continuous load operation while triggering audible and visual alarms for timely maintenance.
A digital LED display shows real-time voltage, current, and operating status for each phase. An optional RS485 communication interface allows integration with Building Automation Systems (BAS) for remote monitoring and centralized management.
Dimensions: 500×380×670mm; Net weight: 50kg. Features a compact structure and industrial-grade components. Operating temperature range: -5°C to 40°C; relative humidity: <90%. Suitable for environments such as factories, basements, and outdoor distribution cabinets.
1. Small and Medium-sized Manufacturing: Provides stabilized power for packaging machinery, food processing equipment, plastic molding machines, CNC machine tools, etc., reducing defect rates and enhancing production continuity.
2. Commercial Buildings and Office Complexes: Ensures stable power supply for central air conditioning systems, elevators, fire pumps, security systems, and office lighting, preventing issues like elevator entrapment or equipment restarts caused by voltage fluctuations.
3. Medical Facilities: Suitable for medical equipment such as X-ray machines, CT scanners, and patient monitors in community health centers and specialized clinics, ensuring diagnostic accuracy and patient safety.
4. Telecommunication Base Stations and Data Centers: Supplies clean, stable power to 5G base stations, small data server rooms, and network switching equipment, preventing data loss and communication interruptions.
5. Transportation: Used in critical infrastructure such as highway toll systems, traffic lights, and tunnel lighting to ensure safe and smooth traffic flow.
6. Education and Research: Provides stable power for precision measuring instruments and test benches in school laboratories and research institutions, ensuring the accuracy and reliability of experimental data.
KTAC supports OEM/ODM services, including customization of exterior colors, packaging methods, input/output voltage ranges, and special function modules (such as EMI filters, lightning protection devices, and RS232/RS485 monitoring interfaces). Please contact us for a customized solution.
The primary difference is the rated capacity: the 15KVA model handles higher power loads, making it suitable for scenarios involving more equipment or higher-power individual units. While their physical dimensions are identical, the 15KVA model features a larger internal transformer and higher-capacity carbon brush assembly; it is heavier (50kg vs. 42kg) and offers more stable performance.
Yes. The SBW series utilizes independent three-phase regulation technology, sampling and controlling the voltage of each phase separately. This ensures stable output for each phase—keeping voltages within the specified accuracy range—even when there are significant differences between the phase loads.
We recommend installation by a certified electrician. Wiring is straightforward, following the three-phase four-wire system (A/B/C/N/PE). We provide detailed installation manuals and wiring diagrams, and can arrange remote guidance or on-site service if needed.
No. The SBW-15KVA has an efficiency of ≥96%, with internal losses accounting for less than 4% of its rated capacity. At full load, it consumes approximately 0.6 kWh per hour—a negligible amount compared to the potential losses the protected equipment might suffer due to voltage instability.
No. The unit features a built-in automatic bypass function. In the event of an internal fault or overload, it automatically switches to a direct mains connection, ensuring the load equipment continues to operate (though voltage regulation is suspended during this time). It also triggers a fault alarm to alert maintenance personnel.
We offer a standard 2-year warranty and lifetime technical support. Our nationwide service network ensures a rapid response to your needs regarding repairs, maintenance, and spare parts. Scheduled inspection services are also available upon request.
Address
No. 82, Xiaotang Gongye Avenue, Shishan Town, Nanhai District, Foshan City, Guangdong Province, China
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