Product introduction

Experience unparalleled efficiency and dynamic versatility with our Premium 100VA Control Transformer. Expertly crafted to cater to the complex demands of contemporary machine tools and mechanical equipment, this transformer is the prime choice for circuits requiring input voltages of up to 1000V, functioning seamlessly at AC 50-60Hz. Engineered for continuous operation within its rated capacity, it effortlessly powers general electrical appliances, local lighting, and provides dependable indicating power with an impressive capacity reaching up to 50000VA.
· Expertly engineered to deliver peak performance at altitudes not exceeding 2000 meters;
· Guarantees flawless functionality within an extensive ambient air temperature range of -25ºC to +40ºC, maintaining a 24-hour average temperature below +35ºC for smooth, consistent operation.
· Sustains superior efficiency under relative air humidity conditions that do not exceed 90% at +25 °C and remain below 50% at +40 °C, ensuring reliable performance under fluctuating conditions.
· Developed for environments devoid of violent vibrations and shocks, with protective measures against rain or snow infiltration, ensuring dependable, uninterrupted operations.
Ingeniously crafted for deployment in media without explosion risks, our transformers operate securely in the absence of corrosive gases or conductive dust, safeguarding metal integrity and insulation for enhanced safety and longevity.
With designs meticulously tailored to accommodate diverse capacity, voltage, and usage requirements, our transformers exhibit varied structures, typically categorized into shell-encased and open-frame forms, each masterfully crafted for specific applications.
Our transformer coils, whether double-winding or multi-winding, are precisely engineered, enabling the secondary side to adeptly utilize multiple taps or windings to achieve the precise voltage and capacity distribution required.
The double winding transformer coil operates with remarkable efficiency, where the primary current is denoted as I1=Pe/U1, and the secondary current as I2=Pe/U2, ensuring optimal energy conversion and distribution.
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 a professional manufacturer with 32 years of unrivaled expertise in manufacturing premium electrical equipment. We specialize in an impressive range of products, including transformers (both dry-type and oil-immersed), voltage stabilizers, regulators, switchgear, compact substations, and frequency converters. Our rigorous quality control protocols ensure outstanding safety and quality, earning us a prestigious reputation both domestically and internationally. Customer satisfaction is our unwavering commitment, and we cordially invite you to visit our state-of-the-art facilities to explore the potential for a mutually beneficial partnership with Dongliang Electric Co., Ltd.
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Company Profile
Established in 1992 with an impressive registered capital of 50 million RMB, Dongliang Electric Co., Ltd. proudly presents nearly three decades of unrivaled mastery in crafting medium voltage transmission and distribution electrical equipment. Our expertise spans an extensive range of transformers such as dry-type, oil-immersed, machine tool, eco-friendly, control, and lighting lamp transformers. Additionally, our portfolio includes voltage stabilizers, voltage regulators, switchgear, compact substations, frequency converters, and a myriad of other electric devices. Perfectly situated in Yueqing City, Zhejiang Province, known as the illustrious 'Electrical Appliance Capital of China', our strategic location is adorned with breathtaking vistas of the East Sea and Oujiang River to the south and the globally celebrated national scenic spots to the north. At Dongliang Electric, our core philosophy embodies 'quality first, service foremost,' fueled by our relentless dedication to innovation and continuous improvement, all aimed at surpassing customer expectations. Our rigorous and comprehensive quality control system is meticulously designed to maintain the utmost standards of quality and safety, securing us a revered reputation among clients both domestically and internationally. Attaining customer satisfaction remains our unwavering aspiration, as we pledge to deliver the most authentic, considerate, and fulfilling service experience. We warmly welcome you to visit our facilities and eagerly anticipate the establishment of an enduring partnership with you.
Company advantage

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Packaging & Shipping
Packing standard: Our commitment to exceptional quality extends to our packaging. We utilize robust wooden cases or high-grade container protection, ensuring that your product arrives in pristine condition, maintaining its integrity throughout the entire transit process.
Q: Who are we?
A: We are Dongliang Electric Co., Ltd., an esteemed leader in the transformer industry with an impressive 32 years of unparalleled expertise. Nestled in the heart of Zhejiang, China, we are dedicated to excellence in transformer production.
Q: Can your product be customized?
A: Absolutely! We understand that every country and region has distinct voltage, frequency, and specialized transformer requirements. Our products are designed with flexibility in mind, allowing full customization to precisely match your specific needs.
Q: How about your after-sales service?
A: Your satisfaction is our priority. That's why we offer an exceptional 20-year after-sales quality guarantee, providing you with unmatched peace of mind and assurance.
For more questions, please feel free to reach out. Contact us and experience our prompt and attentive service with an immediate response.