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.

Zhengrui Dry-Type Transformer: Reliable, Efficient, and Smart Power Distribution

As global energy demands evolve, power distribution systems require solutions that prioritize safety, efficiency, and sustainability. Zhengrui Dry-Type Transformers offer a cutting-edge alternative to traditional oil-filled transformers, providing exceptional performance with an environmentally friendly design. With their robust insulation, advanced cooling system, and intelligent monitoring capabilities, Zhengrui transformers are engineered to support industries, commercial buildings, and renewable energy projects with reliable and cost-effective power solutions.

Why Choose Zhengrui Dry-Type Transformers?

1. Fire-Resistant and Safe Operation

One of the standout advantages of Zhengrui Dry-Type Transformers is their oil-free design. Unlike traditional transformers that use flammable insulating oils, Zhengrui transformers utilize solid insulation materials, eliminating the risks of oil leaks, fire hazards, and environmental contamination. This makes them particularly suitable for indoor installations, high-density urban areas, and locations where fire safety regulations are strict.

2. Durable Insulation for Longevity

To ensure maximum performance and longevity, Zhengrui transformers are manufactured using high-temperature epoxy resin, special varnishes, and advanced insulating papers. These materials provide superior resistance to moisture, dust, and corrosive environments. Depending on application needs, the transformer windings undergo either vacuum pressure impregnation (VPI) or full resin encapsulation, reinforcing their structural integrity and reducing maintenance requirements.

3. Efficient Cooling and Heat Dissipation

Overheating is a common issue in power systems, but Zhengrui Dry-Type Transformers feature an innovative cooling system that prevents excessive temperature buildup. These transformers primarily rely on natural air convection for cooling, but in high-load applications, forced air cooling with high-performance fans can be activated to improve heat dissipation. For specialized industrial use, optional SF₆ gas cooling solutions further enhance thermal efficiency, ensuring continuous and stable operation even under extreme conditions.

4. Smart Monitoring and Automation

As industries shift towards intelligent power management, Zhengrui transformers come equipped with real-time monitoring and control features. Built-in PT100 sensors continuously track the temperature of the windings, displaying data on a digital interface. In addition, RS485 Modbus communication and a 4–20mA output allow integration with SCADA systems and remote monitoring platforms. These smart features enable predictive maintenance, reducing downtime and improving overall grid stability.

5. Versatile Applications Across Industries

Zhengrui Dry-Type Transformers are designed to support a wide range of industries and infrastructure projects, including:

• Commercial Buildings – Offices, hospitals, shopping centers, and hotels benefit from their fire-resistant, low-noise, and low-maintenance design.
• Industrial Manufacturing – Factories and processing plants require reliable power distribution, and Zhengrui transformers ensure steady voltage regulation in demanding environments.
• Renewable Energy Projects – Wind farms and solar power plants need transformers that can handle variable power inputs while minimizing energy losses.
• Transportation and Infrastructure – Airports, metro stations, and public utilities depend on Zhengrui transformers for stable power supply and efficient operations.

Technical Specifications

• Voltage Range: Up to 35kV
• Power Capacity: Customizable based on application needs
• Cooling Options: Natural air cooling (AN) or forced air cooling (AF)
• Insulation Class: F or H for different temperature tolerances
• Protection Level: IP20, IP23, or higher as required

Economic and Environmental Benefits

By eliminating the need for oil, Zhengrui Dry-Type Transformers reduce maintenance costs and environmental risks associated with leaks and hazardous waste disposal. Their high-efficiency design lowers energy consumption, helping industries and businesses reduce operational costs while supporting sustainability initiatives. The extended lifespan and reduced servicing requirements also make Zhengrui transformers a cost-effective long-term investment.

Conclusion

Zhengrui Dry-Type Transformers represent the future of safe, efficient, and environmentally responsible power distribution. Whether used in commercial, industrial, or renewable energy applications, they deliver outstanding performance, enhanced safety, and intelligent monitoring capabilities. Choose Zhengrui for a reliable and innovative transformer solution that meets the power demands of today and the future. Contact us today to explore how Zhengrui transformers can optimize your power distribution network.