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: Revolutionizing Rural Electrification and Grid Resilience

In the midst of global efforts to expand energy access and transition to renewable energy, Zhengrui Oil-Immersed Transformers (OITs) emerge as a critical solution for underserved regions and modern grid infrastructure. By combining breakthrough materials, decentralized energy management, and adaptive design, these transformers address challenges in rural electrification, microgrids, and heavy industry with unmatched affordability and reliability.

Bio-Nano Composite Insulation Breakthrough

Zhengrui’s OITs utilize a proprietary bio-nano composite insulation material synthesized from cellulose nanofibers and graphene oxide. This material achieves ​50% higher thermal stability than conventional epoxy resins while reducing flammability to UL 94 V-0 Class 1 standards. The nanoscale structure enhances dielectric strength, allowing operation at voltages up to 500kV without corona discharge risks. Notably, the biodegradable nature of the material ensures zero environmental impact when decomposed naturally.

​Modular Plug-and-Play Design

The transformers are built using a modular architecture that enables rapid deployment in remote areas. Each module contains a pre-engineered transformer unit paired with solar/wind inverters, battery storage, and IoT sensors. These plug-and-play units can be connected incrementally to scale power capacity, making them ideal for villages and off-grid communities. For example, a 10kW module powers a small clinic, while adding five modules can support an entire agricultural cooperative.

​Blockchain-Enabled Decentralized Grid Management

Zhengrui OITs serve as nodes in decentralized energy networks, leveraging blockchain technology to manage peer-to-peer energy trading. Local farmers or businesses can generate surplus power via solar panels and sell it to neighbors through a secure, transparent ledger system. This model reduces reliance on centralized utilities and empowers communities to control their energy economy. In pilot projects in Kenya, such systems have lowered energy costs by 60% for rural households.

​Nanofluid Cooling for Extreme Efficiency

A cutting-edge cooling system employs magnetic-field-aligned nanofluids composed of iron oxide nanoparticles suspended in mineral oil. This innovation enhances heat dissipation by 40% compared to traditional oil-cooled transformers, allowing smaller, lighter designs without compromising performance. The nanofluids also inhibit sludge formation, extending maintenance intervals from 5 years to 15 years in tropical climates.

​Agricultural and Industrial Customization

Zhengrui tailors OITs for sector-specific needs:

  • ​Agri-Power Units: Waterproof and dust-proof designs power irrigation pumps and cold storage systems in farms, with surge protection against lightning strikes.
  • ​Mining Transformers: Ruggedized versions withstand explosive gases in underground mines (ATEX Zone 1) and operate efficiently at altitudes up to 5,000 meters.
  • ​Textile Mills: High-frequency inverters support energy-intensive machinery while minimizing harmonic distortion.

​Circular Economy and Local Manufacturing

Zhengrui prioritizes sustainability through local production and recycling initiatives:

  • ​Regional Factories: Small-scale manufacturing hubs in rural areas reduce transportation costs and carbon emissions.
  • ​Component Reuse Program: Customers can return old transformers for core, winding, and oil recycling, earning discounts on new purchases.
  • ​Carbon-Neutral Production: Solar-powered factories and waterless electrode coating processes minimize the environmental footprint.

​Global Impact and Partnerships

Zhengrui collaborates with international organizations to drive energy equity:

  • ​UNDP Rural Electrification Projects: Deploying OITs in Sub-Saharan Africa to power schools and health centers.
  • ​GE Renewable Energy Integration: Testing grid-tied solutions for offshore wind farms.
  • ​Arduino Open-Source Ecosystem: Providing developers with API access to customize IoT functionalities.

 conclusion

Zhengrui Oil-Immersed Transformers represent a convergence of advanced materials, decentralized energy systems, and inclusive design. By enabling affordable, reliable power for rural communities and modernizing industrial infrastructure, these transformers pave the way for a more equitable and sustainable energy future.