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Dazheng is committed to becoming a world-class manufacturer of power transmission and transformation equipment,
and strives to provide customers with high-quality products and professional services.

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    Nantong Dazheng Electric Co., Ltd.
    Your Premier Source for Superior Transformer Solutions

    As a leading transformer manufacturer and supplier, Nantong Dazheng Electric Co., Ltd. stands out for its rapid production capabilities. With an exceptional track record, including over 1000 units exported annually to North America and more than 2000 units in operation, Nantong Dazheng Electric Co., Ltd. has earned its reputation as a reliable provider of high-quality transformer solutions.

    R&D Capabilities: The company has a robust R&D team with over 10 years of transformer design experience and is well-versed in numerous international transformer standards, such as IEC, IEEE/ANSI, and CSA. DAZHENG’s technical team comprises experienced electrical engineers and top-tier CAD draftsmen. Utilizing the latest technology, machinery, and modern facilities, they manufacture transformers from top-quality materials that meet the standards of globally recognized suppliers through international procurement.

    Quality Control: Quality is one of DAZHENG’s core values. They offer FAT, Type, and third-party inspection tests to ensure superior quality. By rigorously implementing the ISO 9001 quality management system, DAZHENG consistently delivers the best to its clients.

    DAZHENG team consists of experts and professionals dedicated to swiftly resolving customer issues. All members have undergone systematic training and are committed to continuous improvement in line with quality guidelines and practices. Their commitment to excellent customer service, product innovation, engineering excellence, and strong social and environmental responsibility has made them a trusted partner in the global electric industry.

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    What Can We Do

    POLE MOUNTED TRANSFORMER

    Nantong Dazheng Electric Co., Ltd. is a professional manufacturer of pole-mounted transformers, trusted by utility companies throughout North America. Their transformers are designed and manufactured according to ANSI/IEEE, DOE, and NEMA standards. With a wide range of advantages, Nantong Dazheng Electric Co., Ltd. stands out in the market.

    Extensive experience in supplying transformers to utility companies across North America.

    Swift delivery, ensuring transformers are delivered within 6-10 weeks.

    Single-phase pole-mounted transformers ranging from 15 kVA to 333 kVA.

    Three-phase pole-mounted transformers ranging from 15 kVA to 500 kVA.

    SINGLE PHASE PAD MOUNTED TRANSFORMER

    The single-phase pad mounted transformer fully complies with and exceeds ANSI, DOE, IEEE, and CSA standards. It holds UL/cUL and CSA listings. Available in mild steel and optional stainless steel tanks.

    • Capacity: 15-250kVA
    • Primary Voltage: 34.5kV-19.92kV, 24.94kV-14.4kV, 13.8kV-7.957kV, 13.2kV-7.62kV, 12.47kV-7.2kV, or others
    • Secondary Voltage: 120-240V, 240-480V, 347/600V, or others
    • Configuration: Loop or Radial Feed
    • Insulation Fluids: Mineral insulating oil, Envirotemprm FR3TM fluid
    • H.V. TAP RANGE: 2×2.5% or others
    • BIL: 30V-150V
    • Standards: ANSI, IEEE, DOE, CSA, NEMA, or others
    • Delivery: Fast delivery within 4-8 weeks.
    • Production Capacity: More than 300 units per month.

    THREE PHASE PAD MOUNTED TRANSFORMER

    Nantong Dazheng Electric Co., Ltd. is a leading manufacturer specializing in pad-mounted transformers, offering products with voltages up to 38.5kV and capacities up to 10MvA. Our pad-mounted transformers are produced in strict compliance with ANSI/IEEE, CSA, DOE, and NEMA standards. Every year, we export thousands of pad-mounted transformers to the United States and Canada, supporting numerous projects with reliable performance. We also focus on providing customized pad-mounted transformer solutions tailored to meet the specific needs of your project.

    DISTRIBUTION TRANSFORMER

    The fully-sealed power transformer uses the fins of the corrugated oil tank body as cooling elements. These fins expand and contract with changes in oil volume, isolating the interior of the transformer from the atmosphere, preventing oil deterioration, ensuring insulation from moisture and aging, thus enhancing operational reliability. The core is made of high-quality cold-rolled silicon steel sheets, effectively improving the magnetic flux density distribution, reducing noise and losses. The coils are wound with high-strength enameled wire (or paper-covered wire) using a cylindrical (or disc) structure, ensuring uniform ampere-turn distribution, reasonable insulation structure, and strong short-circuit resistance. The fasteners inside the oil tank use locknuts to ensure they do not loosen during long-distance transportation. The surface of the oil tank is phosphated and coated with triple-proof paint (moisture-proof, mildew-proof, and salt-fog-proof), making it widely used in harsh environments such as metallurgy, mining, and petrochemical industries.

    This type of transformer is called an Oil-Immersed Distribution Transformer, and it comes in three levels:

    • 35kV Three Phase Distribution Transformer
    • 20kV Oil-Immersed Distribution Transformer
    • 10kV Three Phase Distribution Transformer

    DRY TRANSFORMER

    This type of transformer employs advanced international technology and independently developed the SCB13 series resin-insulated dry-type transformers. The resin mixture material uses internationally advanced stirring and vacuum film degassing techniques, ensuring uniform mixing and the elimination of air bubbles from the mixture. The product has an extremely low partial discharge level, controlled to be below 5PC. Both high and low voltage coils are cast under vacuum and pressure, giving the resin insulation full encapsulation and thorough impregnation between layers and turns. The cast body has a dense cured structure, making it flame-retardant, explosion-proof, and environmentally friendly.

    It can be connected to a computer through the RS485 serial interface for centralized monitoring and control. Due to these features, our dry-type transformers are widely applied in power transmission and transformation systems in critical locations such as hotels, airports, high-rise buildings, commercial centers, and residential areas, as well as in harsh environments such as subways, metallurgical plants, power plants, ships, and offshore drilling platforms.

    Application

    All transformers use automatic drawing software and TCAD computer optimization design, standardization, standardization, and scale. Modernized production ensures the quality of each transformer.It can be used in many scenarios.

    Why We Are Different

    Final Factory

    We are the final factory, able to do your quality control and can provide you with competitive prices.

    Standard Process

    We have professional technical personnel and complete production equipment.

    High-End Equipment

    We have professional after-sales service and convenient payment methods.

    Sample Requirement

    We have standardized operation process, strict production management and production plan to ensure timely deliver.

    After-Sales Service

    We can make samples according to customers’ needs, and we can give customers feedback in the first time.

    Strong Technical Team

    The company has strong technical strength, has more than 50 professional and technical personnel

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