Jiangsu Huachen Transformer Co.,Ltd.
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On-load tap changer power transformer is an intelligent voltage regulation solution designed for industrial and utility applications where stable voltage output is critical despite fluctuating grid conditions. Unlike traditional transformers that require de-energization for voltage adjustment, our OLTC power transformer allows seamless voltage regulation while the transformer remains fully operational, ensuring continuous power supply and consistent power quality. The transformer features an integrated design that combines the transformer core and on-load tap changer into a single unit, simplifying installation and reducing overall system footprint. With fast response times and precise voltage control, it effectively compensates for voltage fluctuations caused by varying load demands and grid disturbances.
The primary benefit of our on-load voltage regulating transformer is its ability to adjust voltage levels without interrupting power supply. This feature is essential for industrial processes that require stable voltage to maintain product quality and prevent equipment damage. The tap changer responds quickly to voltage changes, ensuring output voltage remains within the specified tolerance range at all times.
We have engineered the transformer and on-load tap changer as a single integrated unit, eliminating the need for separate installation and alignment. This integrated design reduces installation time and complexity, lowers on-site labor costs, and minimizes the risk of installation errors. The compact footprint also saves valuable space in industrial facilities and substations.
Our fast response voltage regulating transformer features advanced tap changer mechanisms that deliver rapid voltage adjustments with exceptional precision. The control system continuously monitors input and output voltages, making real-time adjustments to maintain stable power supply. This precise control prevents overvoltage and undervoltage conditions, protecting sensitive equipment and extending its service life.
Similar to our other transformer products, the integrated on-load voltage regulator transformer incorporates advanced cooling technology to ensure efficient heat dissipation. The optimized winding design and cooling system reduce temperature rise, preventing thermal degradation of insulation materials and significantly extending the transformer's operational lifespan.
Product Model | Rated Capacity (kVA ) | Connection Group Code | Voltage Combination (kV) | No-load Loss (W) | Load Loss (W) | No-load Current (%) | Short-circuit Impedance % | ||||
High Voltage | Tap Range | Low Voltage | B 100℃ | F 120℃ | H 145℃ | ||||||
SCZ11-2000 | 2000 | Dyn11 Yyn0 | 35 36 37 38.5 | ±4×2.5% | 6 6.3 10 10.5 11 | 4050 | 17900 | 19000 | 20300 | 0.65 | 7 |
SCZ11-2500 | 2500 | 4690 | 21300 | 22600 | 24200 | 0.65 | |||||
SCZ11-3150 | 3150 | 5670 | 24000 | 25400 | 27200 | 0.6 | 8 | ||||
SCZ11-4000 | 4000 | 6640 | 28700 | 30400 | 32600 | 0.6 | |||||
SCZ11-5000 | 5000 | 7850 | 34000 | 36100 | 38600 | 0.5 | |||||
SCZ11-6300 | 6300 | 9270 | 39400 | 41800 | 44700 | 0.5 | |||||
SCZ11-8000 | 8000 | 10600 | 44800 | 47500 | 50800 | 0.45 | 9 | ||||
SCZ11-10000 | 10000 | 12100 | 53900 | 57100 | 61200 | 0.45 | |||||
SCZ11-12500 | 12500 | 14700 | 62700 | 66500 | 71100 | 0.35 | |||||
SCZ11-16000 | 16000 | 18100 | 73800 | 78200 | 83700 | 0.35 | |||||
SCZ11-20000 | 20000 | 21400 | 83000 | 88000 | 94200 | 0.3 | 10 | ||||
SCZ11-25000 | 25000 | 25200 | 98200 | 104000 | 111000 | 0.3 | |||||
On-load tap changer power transformers are essential for any industrial or utility system where voltage stability is a priority. Common applications include:
Industrial manufacturing plants with varying load demands
Electric utility distribution substations
Large commercial buildings and shopping malls
Water treatment and wastewater facilities
Food and beverage processing plants
Textile and paper mills
Mining operations
Renewable energy grid integration
On-load tap changing allows voltage adjustment while the transformer is operating, eliminating the need for power outages. Off-load tap changing requires the transformer to be de-energized, which disrupts operations and causes downtime.
With proper maintenance, our on-load tap changers have a service life of over 30 years and can perform more than 500,000 tap operations before requiring major overhaul.
Yes, regular maintenance is recommended to ensure optimal performance and longevity. We provide comprehensive maintenance guidelines and can arrange professional service visits as needed.
We specialize in manufacturing high-quality on-load tap changer power transformers customized to meet the unique requirements of industrial and utility customers. Whether you need a standard model or a fully customized solution, our experienced team will deliver a reliable, cost-effective product. Contact us now at +86-15852118166 or email your specifications to baojia@hcbyq.com to get your personalized quote.
