| 衬套式 | 标称电压（千伏） | 额定电流（A） |
| 低电压 | 1/3 | 250 |
| 630 | ||
| 1250 | ||
| 2000 | ||
| 3150 | ||
| 4500 | ||
| 6300 | ||
| 中压 | 1936年12月24日 | 250 |
| 630 | ||
| 高压 | 12 | 1250 |
| 2000 | ||
| 3150 | ||
| 4500 | ||
| 24 | 1250 | |
| 2000 | ||
| 3150 | ||
| 4500 | ||
| 36 | 1250 | |
| 2000 | ||
| 3150 | ||
| 4500 | ||
| 52 | 250 | |
| 630 | ||
| 1250 | ||
| 2000 | ||
| 3150 | ||
| 4500 | ||
| 1250 | ||
| 2000 | ||
| 3150 |
The High Voltage Porcelain Bushing by NJREC is engineered primarily for use by transformer designers, electrical engineers, and procurement specialists seeking a reliable power transformer bushing solution. It is suited for deployment in medium- to high-voltage transformers where stable electrical insulation and current conduction capacity are critical. As a trusted transformer bushing manufacturer, NJREC delivers components designed to meet stringent operational and safety requirements, facilitating seamless integration into new builds and retrofit projects. This product appeals to users needing customizable terminal configurations and a range of environmental resistance options, ensuring compatibility with diverse transformer designs across industrial and utility sectors.
This bushing features nominal voltage support from 1 kV to 52 kV and current ratings up to 12500 A, offering significant operational capacity for high-demand electrical networks. Constructed with premium porcelain insulation, it provides superior dielectric strength and environmental resilience against humidity and pollution. Compliance with IEC 60137, historical DIN transformer bushing, and current EN standards validates its engineering integrity and adherence to international quality benchmarks. Multiple termination types—including screwed conductor stems and flag terminals—are available at the air end, with matching oil-end finishes. The variety of surface finishes such as tin plating and galvanising ensures compatibility with corrosive and harsh installation environments.
NJREC's porcelain bushing finds extensive use in insulating medium to high voltage levels in power and distribution transformers, critical in substations and industrial power plants. Its robust design is effective for retrofitting applications where replacements must meet or exceed existing performance standards. The product’s adaptability allows it to function reliably in coastal, industrial, and rural environments, managing electrical stress while maintaining insulation integrity. The product supports engineering efforts in customizing creepage distances and termination options to match specific transformer designs, facilitating operational efficiency and safer electrical system management across grid infrastructure.
The bushing’s design incorporates modular termination options that align with varied transformer connection standards, including transformer bushingDIN and ANSI configurations. This adaptability enhances compatibility with both legacy and contemporary transformer systems. Porcelain insulation material is carefully engineered to optimize dielectric performance while resisting environmental degradation. Metallic components finished with tin plating, galvanising, or copper plating augment corrosion resistance, extending service life. The broad voltage and current rating range offers scalable integration possibilities for multiple transformer classes, backing the product’s versatility as a premium solution from established transformer bushing suppliers.
Performance-wise, the product maintains dielectric stability under thermal and mechanical stresses typical in power transformer operations, ensuring uninterrupted current flow and insulation integrity. Its construction simplifies installation and maintenance procedures, reducing downtime and operational costs. The inclusion of multiple creepage distances supports tailored solutions for various pollution and humidity conditions, directly impacting system longevity and safety compliance. End users gain assurance from NJREC’s documented adherence to IEC and EN standards, which underpin system reliability, durability, and reduced risk of electrical faults in critical high voltage equipment.
In power utility substations, where high voltage transformers are integral to grid distribution, the porcelain bushing functions as a vital insulating and conducting interface. The product’s compliance with IEC 60137 and EN bushing standards ensures regulatory conformity and operational safety. It addresses the challenges of electrical stress and environmental exposure within outdoor installations, including weather and pollution effects. The bushing seamlessly integrates with transformer windings and oil-filled compartments, facilitating secure electrical passage with minimal leakage paths. This robust insulation contributes to stable power delivery, essential for maintaining grid reliability.
在工业环境或配电变压器维护中，该解决方案有助于升级或更换现有套管，同时保持设计的连续性。DIN 套管和 ANSI 兼容的端接选项可简化改造流程，确保与各种变压器品牌和型号的工程兼容性。瓷质绝缘体可抵御工业环境中常见的污染物，包括灰尘和湿气。该套管可精确安装到现有变压器绝缘系统中，从而提高运行安全性并延长设备使用寿命，有助于有效管理资产并降低工业电力基础设施的运行风险。
我们的变压器套管产品额定电压范围为1 kV至52 kV，电流容量最高可达12500 A（具体数值取决于型号）。这一产品范围使我们能够可靠地满足各种电力和配电变压器的需求。
是的，我们提供灵活的端接方式，包括空端螺纹连接和旗形端子，以及油端匹配或机加工孔端子。表面处理，例如镀锡、镀锌和镀铜，可根据特定的环境和安装需求进行定制。
我们按照 IEC 60137 标准，并结合传统的 DIN 和现行的 EN 规范生产瓷套管。这确保了每个高压套管都能满足各种变压器应用所需的严格电气绝缘、机械强度和安全标准。
当然，我们的变压器套管产品专为新安装和改造项目而设计。凭借不同的爬电距离、端接方式和表面处理，我们提供量身定制的解决方案，以应对环境挑战，并在升级或更换过程中延长变压器的使用寿命。
