To ensure maximum efficiency and prevent premature transformer failure, CRGO core quality must be strictly evaluated based on universal physical and magnetic standards. At Chenfan Electric, our CKD/SKD cores are manufactured to meet these three hardcore metrics:
1. Burr Height Control (< 0.02mm) Micro-burrs generated during the shearing process can puncture the lamination insulation coating, leading to inter-lamination short circuits and massive eddy current losses. Our precision cutting lines ensure burr height is strictly maintained below 0.02mm.
2. Core Stacking Factor (> 97%) The stacking factor (space factor) dictates how densely the silicon steel laminations are packed. Poor flatness or excessive burrs lower this factor, requiring a larger core volume. By utilizing premium flat Hi-B steel and precision stacking, our cores consistently achieve a stacking factor of >97%.
3. Specific Core Loss at 1.7T / 50Hz Tested via the standard Epstein Frame method, this is the ultimate proof of material grade. For instance, our 0.23mm thickness laminations are guaranteed to keep specific core losses under 0.75 W/kg (at 1.7 Tesla, 50Hz), ensuring exceptional no-load performance.
Stop guessing about your core quality. Source directly from a manufacturer that controls every micrometer.
Contact Frank for factory test reports and quotes:
- WhatsApp: +8618617775005
- Email: frank@chenfanelectricpower.cn