Applications & Cases
Selected projects from metering, distribution, new energy and rail customers. Figures shown are recorded from the corresponding production batches.
Power MeteringNanocrystalline Core
Challenge. Ratio error drifted between batches at low primary current, affecting meter accuracy certification.
Solution. Switched to in-house nanocrystalline ribbon with controlled annealing and 100% permeability sorting before winding.
0.2S
Accuracy class
±4%
Permeability tolerance
500k pcs
Monthly volume
New EnergyNanocrystalline Core
Challenge. High ambient temperature inside the inverter caused inductance drop and measurement drift.
Solution. Adjusted alloy annealing profile and adopted a potted case with wider temperature margin.
-40~120°C
Operating range
-18%
Loss reduction
9 days
Sample lead time
SwitchgearPT Core
Challenge. Medium voltage instrument transformers (10 kV - 35 kV CT and PT) operate under high voltage, strong electromagnetic fields and possible short-circuit overload. Beyond ordinary magnetic properties, their cores face demanding requirements in four dimensions: electromagnetic performance, stress and encapsulation protection, thermal stability and transient behaviour, and compatibility with the medium-voltage insulation casting process.
Solution. Step-lap grain oriented silicon steel cores with controlled magnetic properties, stress-relieved winding and encapsulation, verified thermal and transient behaviour, and case geometry matched to resin casting, so all four requirement dimensions are covered before delivery.
0.5
Accuracy class
10-35 kV
Voltage class
Verified
Casting fit
New EnergyCT Core
Challenge. Smart grid retrofit projects need current measurement on existing busbars and cables without cutting conductors or shutting down the line, while the air gap of a split core tends to cause output deviation between assemblies.
Solution. Precision cut nanocrystalline split cores with lapped gap surfaces, matched pair sorting of the two halves and a defined closing torque, so the core can be clamped on site, re-adjusted after repositioning and re-verified against the metering channel of the smart energy monitoring unit.
Live line
Installation
±0.05mm
Gap consistency
≤1.5%
Output deviation
Rail & Industrial PowerSilicon Steel Core
Challenge. Reactor cores in injection molding machines and elevator drives run under continuous harmonic current and frequent load cycles, so core loss, temperature rise and audible noise must stay within the machine maker's limits over long duty cycles.
Solution. Low loss grain oriented silicon steel cores with step-lap joints and vacuum varnish impregnation, plus a tuned air gap for inductance stability, keeping temperature rise and noise within specification across the full duty cycle.
-6 dB
Noise reduction
-11 K
Temp rise
Continuous
Duty cycle
Power MeteringNanocrystalline Core
Challenge. Sensitivity to mA level residual current demanded very high initial permeability.
Solution. High permeability nanocrystalline grade with magnetic shielding case option.
100,000
Initial μ
10 mA
Sensitivity
10 days
Lead time
SwitchgearCT Core
Challenge. Before approving large window busbar CT cores, customers need assurance on three points: measurement accuracy across the load range, long-term stability of the magnetic core, and whether the plastic case survives handling, vibration and thermal cycling inside switchgear panels.
Solution. Cores are sorted by measured ratio error and phase displacement, batch magnetic data is issued with each shipment for stability traceability, and the plastic case is validated by drop, vibration and thermal cycling tests with defined wall thickness and rib reinforcement, so accuracy, stability and case durability are all documented before delivery.
0.5
Accuracy class
Data issued
Batch stability
Tested
Case durability
Rail & Industrial PowerSilicon Steel Core
Challenge. Industrial control power supplies and power transformers run around the clock inside cabinets with limited cooling, so core loss, temperature rise and long-term inductance stability decide the reliability of the whole power chain.
Solution. Low loss silicon steel cores with step-lap joints and vacuum varnish impregnation, dimensionally matched to standard transformer windows, with batch loss data issued to support the customer's thermal design verification.
0.70-1.40 W/kg
Core loss
-11 K
Temp rise
24/7
Duty
Customer Endorsement
Grid utilities and transformer makers that run on Cinacore cores, including KEPCO, Indonesia PLN, Thailand MEA and PEA, CEEG and State Grid projects.
Korea Electric Power Corporation
Indonesia Grid
Metropolitan Electricity Authority, Thailand
Provincial Electricity Authority, Thailand
China Electric Equipment Group
State Grid Corporation of China
The permeability data report that comes with every shipment lets us skip incoming inspection on most lots. That alone saved our line several hours a week.
We moved from a trading company to Cinacore because they produce the ribbon themselves. Quotation was clearer and the batch variation stopped.
Samples arrived in nine days with full magnetic test data. Our engineers could finish the magnetic design without extra trial rounds.
Certification & Records
Certificates and batch test reports are issued with shipments. Specific certificate copies are available on request after an NDA where required.
Manufacturing processes run under a documented quality management system with batch traceability.
Magnetic property test reports issued per batch, covering permeability, loss and saturation.
Raw materials supplied with RoHS and REACH compliance declarations on request.
0M+ pcs
Annual core output
0+
Production & test machines
0+
Export countries
0%
On-time delivery
Share accuracy class, current range, window size and annual volume for a material recommendation.