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Quality Control
Quality is not just a department at JNCN Power; it is our core philosophy. We adhere to the most stringent international standards to ensure that every transformer, switchgear, and substation we deliver provides maximum safety and stability for global power grids.
Our International Credentials
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ISO 9001:2015 | Quality Management System Our entire workflow—from initial design and raw material procurement to final assembly—is strictly governed by the ISO 9001 standard, ensuring consistent product excellence.
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ISO 14001 & ISO 45001 | Environmental & Safety Standards We are committed to sustainable manufacturing and a safe workplace. Our certifications reflect our dedication to environmental responsibility and the well-being of our specialized team.
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CE Certification | European Compliance Successfully obtained in 2025, our CE certification confirms that JNCN products meet the rigorous health, safety, and environmental protection standards required for the European Economic Area.
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National Invention Patents Our quality is backed by innovation. With multiple national patents, we utilize proprietary technologies to enhance the durability and energy efficiency of our equipment.
The JNCN Quality Control Process
1. Raw Material Inspection We only source premium silicon steel and high-purity copper. Every batch of material undergoes strict testing before entering the production line.
2. In-Process Quality Control (IPQC) Continuous monitoring at every production stage—winding, core stacking, and assembly—to detect and resolve any deviations immediately.
3. Advanced Smart Testing Our dedicated Smart Testing Department conducts comprehensive routine and type tests, including insulation resistance, load loss, and high-voltage impulse tests, ensuring 100% compliance before shipment.
4. Traceable Records Every product comes with a full quality inspection report and a unique serial number for lifelong traceability and service support.
Our Certificates
