Ga abu da Dukkar da Cikakkeni ga Tafin Masu Kirkiro Karamin Kirkiro (LV CT)

I. Background na ɗanƙasa​
A cikin abubuwa da ke sahihi sosai kamar smart grids, metering ta tattalin arziki, da yanayin karkashin shirya, an samun rashin da suka faruwa a cikin current transformers da ke sahihi sosai (LV CTs) masu karfi, kamar sahihi ba tabbas, tsayi mai yawa da tsayi, da kuma inganci mai yawa a lokacin tsohon shekaru. Don in tabbatar da abubuwan da suka faruwa a matsayin 0.2S/0.5S-class da sahihi sosai, wannan ɗanƙasa ya bayar da ɗanƙasa mai yawa don LV CTs ta hanyar ziyartar matukar gwiwa da kuma koyarwar gwiwa.

​II. Fasahar ƙwarewa masu ma'ana​

1. ​Matsayin ƙwarewa mai yawa​
   • Nanocrystalline/Amorphous Alloy Ultra-Thin Strips:
   An kara core da nan da ƙwarewar nan da dama 0.02-0.025mm, wanda ya haɗa da muhimmanci mai yawa (μi) da 1.5×10⁵ H/m. Wannan ya gudanar da tsayi mai yawa da kuma koyarwar ratio/phase.
   • Magnetic Domain Optimization:
   An yi annealing da magnetic field direction, wanda ya gudanar da stress na core, ya haɗa da uniformity na flux, da kuma koyarwar hysteresis losses a lokacin harmonics da take da tsayi.
2. ​Magnetic Shielding da Koyarwar Interference​
   • Multi-Layer Composite Magnetic Shielding:
   An saka dual Permalloy + copper mesh shielding layers daidai core don koyarwar interference da take da AC magnetic field da kuma koyarwar DC bias effects.
   • Orthogonal Winding Process:
   An yi segmented orthogonal winding technology don secondary windings, wanda ya gudanar da distributed capacitance da leakage inductance, ya haɗa da frequency response (accuracy deviation < ±0.1% within 1–5kHz bandwidth).
3. ​Temperature Compensation da Signal Processing​
   • Dynamic Temperature Compensation Circuit:
   Integrated high-linearity NTC/PTC sensors sun ci gaba da temperature drift a cikin core permeability da winding resistance (temp. drift coefficient ≤ ±10 ppm/°C).
   • High-Stability Sampling Resistor:
   Low-drift metal foil resistors (ΔR/R < ±5 ppm/°C) da four-terminal Kelvin connections sun haɗa da accuracy na current-to-voltage conversion.
4. ​Encapsulation da Insulation Reinforcement​
   • Vacuum Potting Process:
   High-purity epoxy resin potting da 10⁻³ Pa ya gudanar da bubbles da internal stress, ya haɗa da mechanical strength da thermal stability.
   • Multi-Layer Insulation Architecture:
   Polyimide film + silicone composite interlayer insulation ya haɗa da dielectric strength >15 kV/mm da partial discharge <5 pC (@1.5Ur).

​III. Abubuwan da suka haɗa​

​IV. Tsarin Yadda Ake Amfani Da Ita​
Wannan ɗanƙasa ya fi amfani da ita a:
• ​Power Metering:​​ Smart meters, distribution network automation systems (compliant with IEC 61869-2 standard)
• ​Renewable Energy Monitoring:​​ High-precision current sampling in PV inverters and energy storage systems
• ​Industrial Control:​​ Fault current detection in VFDs and motor protection devices
• ​Lab Standards:​​ Serving as 0.2S-class standard transformers for value transfer