Product introduction

Our Reliable 220V Control Transformer, a powerhouse with a capacity reaching up to 50,000VA, is expertly crafted for input voltages up to 1000V within AC 50-60Hz circuits. Meticulously designed to perform with unwavering reliability even at maximum capacity, this transformer is the epitome of versatility and dependability. It seamlessly integrates across a variety of machine tools and mechanical equipment, serving as an essential control power supply for general electrical appliances. It also provides localized lighting and acts as a steady power source for indicators, ensuring optimal functionality.
· Ideally utilized in locations where the altitude gracefully maintains below 2000 meters, ensuring optimal transformer performance at higher elevations;
· Expertly engineered to operate flawlessly in ambient air temperatures ranging from a chilly -25ºC to a warm +40ºC, with the assurance that the 24-hour average temperature does not exceed +35ºC.
· Specifically designed for environments where air relative humidity is kept below 90% at +25°C, and remains under 50% at +40°C, ensuring consistent operational efficiency.
· Built to thrive in environments devoid of violent vibrations or shocks, while perfectly protected from any exposure to rain or snow, safeguarding its longevity and performance.
Ingeniously engineered for environments where explosion risks are non-existent, ensuring that there is no presence of corrosive gases or conductive dust that could compromise metal integrity or insulation quality.
Our transformers are precision-crafted to cater to a diverse range of capacity, voltage, and application needs. They offer a variety of structural designs typically categorized into encapsulated and open-shell configurations, allowing for versatile application and reliable performance.
The transformer coils are designed with either double or multiple windings, providing secondary windings with multiple taps or independent coils to achieve precise voltage and capacity distribution, tailored to meet specific operational requirements.
The double-winding transformer coil equations are: primary current I1 = Pe/U1, and secondary current I2 = Pe/U2, providing accurate calculations for optimal performance.
Apply |
Mines, oil fields, subways, power plants, schools, hospitals, commercial centers, high-rise buildings |
Installation height |
The altitude does exceed 1000m |
The waveform of the power supply voltage |
similar to a sine wave |
We are proud to stand as a professional manufacturer with 32 years of deep-rooted expertise in the electric equipment manufacturing sector. Specializing in transformers, both dry-type and oil-immersed, voltage stabilizers, regulators, switchgear, compact substations, and frequency converters, our company upholds rigorous quality control protocols to ensure unmatched safety and excellence. This commitment has earned us a prestigious reputation both domestically and globally. Our dedication to customer satisfaction is unwavering, driving us to provide genuine, precise, and rewarding services. We warmly invite you to visit our facility and embark on a robust partnership with Dongliang Electric Co., Ltd.
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Company Profile
Established with foresight and determination in 1992, Dongliang Electric Co., Ltd. stands as a testament to excellence with a commanding registered capital of 50 million RMB. With nearly three decades of unmatched expertise, we are at the forefront of manufacturing high-quality medium-voltage transmission and distribution electrical equipment. As an icon of innovation and reliability, our product portfolio is as diverse as it is impressive, featuring an array of transformers including dry-type, oil-immersed, and machine tool varieties, as well as environmentally-friendly, control, and lighting lamp transformers. Expanding beyond transformers, our line-up includes state-of-the-art voltage stabilizers, voltage regulators, cutting-edge switchgear, compact substations, frequency converters, and other advanced electrical solutions. Located in the prestigious 'Electrical Appliance Capital of China', Yueqing City, Zhejiang Province, our esteemed company benefits from a strategic location with the tranquil East Sea to the south and the awe-inspiring national scenic treasures to the north. Upholding our unwavering principle of 'quality first, service first', we relentlessly pursue perfection and innovation, continuously striving to exceed the expectations of our valued customers. Our stringent quality control system guarantees zero defects and zero complaints, solidifying our reputation for excellence both within China and on the global stage. Customer satisfaction remains our ultimate mission, and we are devoted to delivering the most genuine, thoughtful, and satisfactory service experience. We warmly welcome you to visit our factory and embark on a journey toward a long-lasting partnership with Dongliang Electric Co., Ltd.
Company advantage

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Packaging & Shipping
Packing standard: Our packaging solutions are meticulously crafted to include robust wooden cases and secure container protection, ensuring your product embarks on its journey to you in the most pristine and impeccable condition possible.
Q: Who are we?
A: We are Dongliang Electric Co., Ltd., proudly standing as a beacon of excellence in the transformer industry. With a distinguished 32-year legacy of expertise in professional transformer production, our roots are deeply embedded in Zhejiang, China, where we have consistently excelled.
Q: Can your product be customized?
A: Absolutely! Our Cost-Effective 3phase Control Transformer is crafted to be exceptionally versatile, allowing for complete customization tailored to meet the unique voltage, frequency, and specific transformer requirements of various countries and regions. Customize our product to perfectly align with your specific needs.
Q: How about your after-sales service?
A: Our unwavering commitment to quality doesn't end at purchase. Benefit from our outstanding 20-year after-sales quality guarantee, ensuring your peace of mind and utmost satisfaction with every interaction.
More questions? Don't hesitate to reach out to us anytime for prompt and efficient assistance. Experience our immediate and attentive customer response service to address all your needs.