TuoCore MagneticsCore & Magnetic Component Manufacturer

Applications

From distribution transformers to smart meters, solar inverters and EV chargers — choose the right core material and format for your application.

Power & Distribution Transformers

Wound cores for distribution and power transformers reduce no-load loss and audible noise. We wind, cut and anneal grain-oriented silicon steel cores from 23Q110 to 30Q120, in toroidal, C-core and three-phase 3D formats.

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Instrument Transformers (CT / VT)

Current and voltage instrument transformers rely on stable permeability and low phase error. Nanocrystalline and silicon steel toroidal cores are supplied epoxy coated, taped or cased for potting.

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Current Transformers & RCDs

Residual current devices and precision current transformers need high initial permeability. Our nanocrystalline toroidal cores reach high permeability with low coercivity, keeping trip thresholds stable over temperature.

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Reactors & Chokes

Detuned reactors, smoothing reactors and PFC chokes use gapped or cut cores to hold inductance under load. We supply C-type cut cores and gapped silicon steel cores with controlled air gaps.

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Inductors & Common-Mode Chokes

Common-mode chokes for EMI suppression use high-permeability nanocrystalline or MnZn ferrite cores. We supply bare, coated and cased cores for household, industrial and automotive EMI filters.

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Smart Meters & Energy Measurement

Single- and three-phase smart meters use small nanocrystalline or silicon steel cores for current sensing. Tight tolerance and stable permeability keep metering accuracy within class 0.5S / 0.2S.

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Solar Inverters & Energy Storage

String and central inverters use nanocrystalline and ferrite cores in boost inductors, transformers and EMI filters. Low loss at high frequency keeps efficiency and temperature in check.

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EV Chargers & On-Board Chargers

DC fast chargers and on-board chargers use nanocrystalline cut cores in resonant inductors and transformers. High saturation flux density keeps size small at high power.

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Inverter Welders

Inverter welding machines use nanocrystalline cores in the main transformer to cut weight and improve duty cycle. We supply coated toroidal and C-type cores rated for welding duty.

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Switch-Mode Power Supplies

SMPS transformers and output chokes use MnZn ferrite EE/ER cores and nanocrystalline cores where low loss matters. Standard and custom geometries are available.

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EMI Filters & Line Chokes

Common-mode and differential-mode chokes in EMI filters rely on high-permeability cores. Nanocrystalline and NiZn ferrite rings cover broadband suppression from 10 kHz to hundreds of MHz.

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