Reactive Power Automatic Compensation Series
Your Professional Reactive Power Automatic Compensation Series Supplier
Shaanxi Sefon Electrical Equipment Co., Ltd. (referred to as Sefon), established in 2009, is a high-tech enterprise integrating research and development, design, production, sales, service, and power engineering general contracting. Our company mainly produces 35kV and below oil immersed transformers, dry-type transformers, special transformers, dry-type iron core series reactors, high and low voltage switchgear, box type substations, prefabricated cabins, and power quality control products.
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Why Choose Us
Certification
Passed ISO9001:2008 quality management system certification, ISO14001:2015 environmental management system certification, and OHSAS18001:2007 occupational health and safety management system certification.
R&D Team
In recent years, the technology research and development team has independently developed and made significant technological progress in major products such as special power equipment and power quality equipment, based on the reference of advanced technologies at home and abroad, and has obtained more than ten national patents.
Advanced Equipment
WR horizontal winding machine; ZBR-1000 automatic cable winding machine; ZBR-1000 shearing machine; ZY-50 vacuum oil filter; HB electric hot blast constant temperature drying oven; WLJ-1200 corrugated paper board machine; SRX2600 three-dimensional iron core winding machine; DHR1400 foil winding machine; 303E-3-S busbar processing machine; ZQ4125 desktop drilling machine, etc.
Our Services
The company is fully committed to providing customers with meticulous and professional consulting services. For problems that arise during the use of products or equipment, based on user feedback, our company's after-sales service center will coordinate with them, including product installation, maintenance, and technical Q&A.
Reactive Power Automatic Compensation Series Specifications
| Input | Voltage | 304V-456V (three phase) |
| Frequency | 50Hz/60Hz | |
| Output | Voltage | 380V±2% |
| Accuracy | ±2% | |
| Response Time | <1s | |
| Waveform Distortion | No additional waveforms generated (static) | |
| Efficiency | ≥98% | |
| Protection | Over Voltage | Delay 3~5 seconds cut off output, when output voltage over 10% |
| Low Voltage | Delay 3~5 seconds cut off output, when output voltage lower than 15% | |
| Phase Failure | Cut off output automatically | |
| Over Load | Electronic detection, cut off output or uninterrupted transfer to city electricity | |
| Over Current | Delay 3~5 seconds cut off output, when over rated current | |
| Short Circuit | Cut off output | |
| Bypass | Manually transfer to DC power supply in case of voltage regulator failure or repair | |
| Noise | <55dB | |
| Relative Humidity | 0%~90% Non-condensing | |
| Withstand Voltage | 2000VAC | |
| Insulation Resistance | ≥2MΩ | |
| EM filtering device | Optional | |
Key Features

1. Adopt AC sampling technology.
2. Digital integration, filtration.
3. Adopting the control technology of the single-chip microcomputer, has realized the intellectualized of electric network reactive auto matic compensation.
4. Strong anti-interference ability can resist 2000V interference pulse from power direct, and not crashing, does not lose the data, it is reliable to run steady.
5. Digital display electric network power factors, over-voltage values, current etc. Various kinds of control parameter.
6. With self-checking functions, it needn offer current mutual inductors ratio to compensate capacitor capacity, is suitable for different parameter automatically.
7. Sampling signal phase sequence is distinguished and changed automatically.
8. With two working mode of manual and automatic, convenient for user to install and debug.
9. With over-voltage judgment display function that can cut off the group of the capacitor quickly.
10. Concise man-machine dialogue, operating, debugging, simplicity direct-view.
Applications
Manufacturing Plants
Automated compensation helps stabilize voltage and manage reactive power demands from large motors, pumps, and other inductive equipment, reducing operational costs and equipment wear.
Heavy Industries
Metal processing, arc furnaces, and welding equipment create significant reactive power loads, making automatic compensation essential for voltage stability and operational efficiency.
Chemical Processing
Similar to other heavy industries, this sector benefits from optimized energy consumption and stable voltage levels for sensitive processes.
Data Centers
Large commercial buildings and data centers require stable voltage and power quality to ensure the reliable operation of sensitive electronic equipment, which reactive power compensation provides.
Shipping
Most orders less than 70KG (150 lbs). will be shipped via Fedex ,DHL UPS,TNT .Our shipment account have the best discount price for express to Worldwide.
All bulky and overweight items we will advise be shipped by Air or by Sea . Once you place order , we will come out the shipment cost for you to confirm.
If you wish to have items shipped on your account or your forwarder, you must provide all account information and instructions at the time of sale. Packaging and handling costs may still apply.

Our Certificates






FAQ
We're professional reactive power automatic compensation series products manufacturers and suppliers in China, providing high quality products with low price. We warmly welcome you to wholesale cheap reactive power automatic compensation series products made in China here from our factory. Contact us for customized service.
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