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

Zhengrui Oil-Immersed Transformer: Pioneering Power Solutions for Standalone Stations​

In the era of decentralized energy systems, oil-immersed transformers (OITs) remain vital for ensuring stable and efficient power distribution in standalone stations. ​Zhengrui Electric​ has pushed the boundaries of OIT technology to address the unique demands of modern off-grid and hybrid energy projects. 

1. Breakthrough Technological Innovations​

Zhengrui’s OITs incorporate cutting-edge advancements to enhance reliability and efficiency:

  • ​Nano-Composite Insulation: Ultra-thin, high-temperature-resistant materials reduce thermal losses and extend operational lifespan by 30%.
  • ​AI-Driven Fault Detection: Real-time analytics using machine learning algorithms identify potential issues like partial discharges or winding faults, minimizing downtime.
  • ​Eco-Friendly Coolants: Adoption of ​bio-based synthetic fluids​ with zero ozone depletion potential (ODP) and low global warming potential (GWP) aligns with carbon neutrality goals.

2. Optimized for Renewable Energy Integration​

Zhengrui OITs are designed to seamlessly integrate with renewable energy sources:

  • ​Solar PV Compatibility: High-voltage step-up transformers (up to 330 kV) efficiently convert DC from solar arrays to AC for grid connection.
  • ​Wind Farm Flexibility: Variable-speed drive compatibility ensures stable output despite wind speed fluctuations, reducing grid instability.
  • ​Battery Storage Synergy: Integrated with lithium-ion batteries, they provide load leveling and black-start capabilities for grid-independent operations.

​3. Built for Extreme Environments​

Zhengrui OITs are rigorously tested to perform reliably in harsh conditions:

  • ​Temperature Resistance: Operate continuously in temperatures from -50°C to +80°C, suitable for deserts, polar regions, or industrial furnaces.
  • ​Corrosion Resistance: Stainless steel tanks and epoxy-coated components withstand saltwater, acid rain, and high humidity, ideal for offshore installations.
  • ​Vibration and Shock Tolerance: Robust mechanical design ensures stability in earthquake-prone areas or heavy machinery environments.

​4.智能化运维与低碳管理​

  • ​Digital Twins for Proactive Maintenance: Virtual replicas simulate transformer behavior under stress, predicting failures before they occur.
  • ​Carbon Footprint Tracking: IoT-enabled systems monitor energy consumption and emissions, providing actionable insights to reduce operational carbon intensity.
  • ​Remote Control Capabilities: Operators can adjust tap settings, activate cooling systems, or initiate maintenance protocols via a cloud-based platform.

5. Economic and Scalable Solutions​

  • ​Modular Design: Plug-and-play units allow incremental capacity expansion, accommodating renewable energy growth without overhauling existing infrastructure.
  • ​Low Total Cost of Ownership (TCO): Energy-efficient designs (up to 99.5% efficiency) and extended maintenance cycles (20+ years) reduce long-term expenses by 35%.
  • ​Rapid Deployment: Prefabricated and containerized solutions enable 48-hour installation for emergency projects or temporary power needs.

6. Unique Applications in Standalone Stations​

  • ​Offshore Renewable Hubs: Marine-grade OITs power floating wind farms and tidal energy systems with zero maintenance requirements.
  • ​Mining Operations: Rugged designs handle high-voltage loads and explosive atmospheres in underground mines.
  • ​Agricultural Electrification: Compact, cost-effective units deliver power to remote villages with minimal infrastructure investment.

7. Competitive Edge Over Alternatives​

While dry-type transformers dominate indoor applications, Zhengrui OITs offer unparalleled benefits for standalone stations:

  • ​Power Density Leadership: Deliver up to 800 kVA per unit in compact designs, occupying 40% less space than conventional transformers.
  • ​Zero Fire Risk in Enclosed Spaces: Double-wall tanks with inert gas protection eliminate fire hazards in data centers or hospitals.
  • ​Sustainable Lifecycle: Recyclable materials and eco-friendly fluids minimize environmental impact throughout the product lifecycle.

Conclusion​

Zhengrui oil-immersed transformers redefine the standards for standalone power stations through their blend of advanced materials, intelligent technology, and sustainability. By addressing extreme environments, renewable energy variability, and operational efficiency, they empower operators to build resilient, cost-effective, and eco-conscious energy systems. As the world embraces decentralized energy, Zhengrui’s OITs will remain a critical partner in unlocking accessible, reliable power for all.