Quality standards of product

 

1.Quality management system GB/T 19001-2016 ISO 9001: 2015

The operation of the whole ZHENGRUI system is strictly controlled and managed. This ensures the quality of products and material in all stages, from receiving customer requests to design, materials, production, installation, testing, packaging, delivery, after-sales, all of which operate under strict and logically linked processes.

2.Accreditation certificate CE

LOW VOLTAGE DIRECTIVE,ELECTROMAGNETIC COMPATIBILITY DIRECTIVE ATTESTATION OF CONFORMITY
GENERAL PRODUCT SAFETY REGULATION ATTESTATION OF CONFORMITY

confirms that ZHENGRUI technical quality meets the requirements of all specific international standards for testing and calibration laboratories. All ZHENGRUI products are fully tested in a qualified testing room before leaving the factory, ensuring stable quality and providing absolute peace of mind for customers.

 

Products Description

Introducing Zhengrui Dry-Type Transformer – Powering a Safer, Smarter Future

Zhengrui Dry-Type Transformers represent the pinnacle of modern electrical power distribution technology, designed to meet the rigorous demands of today’s industrial, commercial, and renewable energy sectors. With an unwavering commitment to safety, efficiency, and environmental sustainability, Zhengrui has developed a transformer solution that not only delivers reliable performance but also redefines industry standards.

Cutting-Edge Cooling Technology

At the core of the Zhengrui Dry-Type Transformer is an innovative cooling system that utilizes natural air convection enhanced by advanced fan-assisted and gas-cooling mechanisms, including options such as SF₆ gas. This robust cooling design ensures optimal heat dissipation even under heavy load conditions, thereby maintaining the transformer’s operational temperature within safe limits. By effectively managing thermal performance, the system reduces thermal stress on critical components, prolonging service life and reducing maintenance frequency.

Superior Insulation and Robust Construction

Safety and durability are paramount in Zhengrui’s design philosophy. Our transformers are constructed using high-grade insulation materials, including high-temperature epoxy resins, specialized insulating papers, and premium varnishes. The windings are either vacuum pressure impregnated (VPI) or fully encapsulated in resin, forming a resilient barrier against moisture, dust, and other environmental contaminants. This meticulous insulation process not only enhances the transformer’s dielectric strength but also ensures stable performance in harsh operating environments, making it ideal for both indoor and outdoor applications.

Advanced Temperature Monitoring and Protection

Zhengrui Dry-Type Transformers are equipped with a state-of-the-art temperature control system. Integrated PT100 sensors continuously monitor the temperature across all three-phase windings and provide real-time data via an intuitive digital display. When the system detects temperatures approaching preset thresholds, a multi-stage protection protocol is automatically activated. Initially, auxiliary cooling fans engage to boost airflow; if temperatures continue to rise, a high-temperature alarm is triggered, and finally, the system initiates an over-temperature trip to shut down the transformer safely. This intelligent monitoring and protection system ensures operational safety, prevents equipment damage, and minimizes downtime.

Smart Communication and Integration

To facilitate seamless integration into modern industrial and building management systems, the Zhengrui Dry-Type Transformer supports advanced communication protocols. With a 4–20 mA analog output and RS485 Modbus compatibility, the transformer can be easily connected to remote monitoring and automation systems. This connectivity enables real-time tracking of performance metrics and historical data logging, empowering operators with actionable insights for proactive maintenance and efficient system management. The option for manual or automatic control of the cooling fans further allows for customizable operation tailored to specific load conditions and environmental factors.

Versatile Applications Across Multiple Sectors

The design versatility and robust safety features of the Zhengrui Dry-Type Transformer make it an optimal choice for a wide array of applications:

  • Indoor Installations: Ideal for buildings, hospitals, schools, and commercial complexes, where fire safety and minimal environmental impact are critical. The oil-free design eliminates the risk of leakage and fire hazards, ensuring safe operation in densely populated areas.
  • Industrial Environments: In sectors such as manufacturing, chemical processing, and other industrial facilities, where oil contamination is a significant concern, Zhengrui transformers provide a clean, maintenance-friendly power solution.
  • Renewable Energy Systems: With its dependable performance and robust construction, the transformer is perfectly suited for wind and solar power plants, ensuring efficient energy conversion and reliable power delivery in fluctuating outdoor conditions.
  • Infrastructure and Transportation: Airports, railway stations, and other critical infrastructure benefit from the compact, high-performance design of Zhengrui transformers, which guarantee uninterrupted power supply and enhanced system reliability.

Unmatched Value and Reliability

Choosing the Zhengrui Dry-Type Transformer means investing in a product that combines cutting-edge technology with proven reliability. Our transformers meet stringent international safety and performance standards, ensuring that your power distribution system operates smoothly and efficiently. With reduced maintenance needs, extended service life, and significant operational cost savings, Zhengrui Dry-Type Transformers deliver outstanding value for modern power systems.

Experience the future of power distribution with Zhengrui – where innovation meets reliability, safety, and smart energy management. Contact us today to learn more about how our advanced transformer solutions can empower your infrastructure and drive your business forward in an increasingly dynamic and sustainable world.