Inverter Duty Transformer
Specifically designed for inverter-fed loads. K-factor rated, eddy-current loss controlled for harmonic-rich loads from VFDs, UPS, and power electronics.
Product viewTechnical Parameters
Standard parameter ranges for this model. Special requirements can be assessed by our engineering team — contact us for custom specifications.
| Parameter | Standard Range |
|---|---|
| Rated capacity | Custom (typical: 100–3150 kVA) |
| Primary voltage | 0.4, 0.69, 0.8, 10, 20, 35 kV |
| Secondary voltage | 0.4 kV / custom |
| Frequency | 50 Hz or 60 Hz (plus harmonic spectrum) |
| Phase | 3-phase |
| Vector group | Dyn11, Dyn5, Yyn0 |
| Impedance | 4.0% – 8.0% (K-factor adjusted) |
| Cooling method | AN/AF (dry-type) or ONAN/ONAF (oil) |
| Tap changer | Off-circuit (OCTC) ±2×2.5% |
| Insulation level | Per voltage class |
| Temperature rise | 100K (F, dry) / 65K (oil); harmonic-adjusted |
| No-load loss | Per IEC 60076 |
| Load loss | Per IEC 60076 (K-factor adjusted, stray loss controlled) |
| Noise level | ≤55 dB |
| Protection level | IP23 indoor / IP54 outdoor |
| Applicable standards | IEC 60076, IEEE C57.12.00, UL 1561 |
| Ambient temperature | -25°C to +50°C |
| Altitude | ≤1000m |
| Accessories | Temp sensors, K-factor rating plate, enclosure |
Product Advantages
Verifiable benefits — not empty claims. Here’s exactly what you get when you choose JINXING.
K-Factor Rated
K-4 to K-20 rating — handles harmonic loads from VFDs, UPS, inverters.
Low Stray Loss
Eddy-current loss controlled — prevents overheating from harmonics.
Custom Harmonic Design
Designed for your specific harmonic spectrum and THD.
Full Routine Test
IEC 60076-1 + harmonic loss verification.
English Docs
Complete documentation including K-factor calculation.
OEM Support
Private label for drive and UPS manufacturers.
Details and componentsApplications
Where this transformer is used — connecting the product to real-world industry applications.
VFD Applications
Variable frequency drive power supply transformers.
UPS Systems
UPS input/output isolation transformers.
Solar Inverters
PV inverter step-up — harmonic-tolerant.
Industrial Drives
Process industry drive-fed load transformers.
Data Centers
UPS and server power supply — harmonic adaptation.
Quality Proof — 9-Step Manufacturing Process
Every transformer passes through 9 quality-controlled stages, from raw material to shipping. Full traceability with documentation at every step.
Manufacturing and testingMaterial Inspection
Raw material verification — core steel, copper, oil, accessories checked against certificates before production.
Core Cutting
CNC step-lap core cutting for low-loss grain-oriented silicon steel. Core loss measured before assembly.
Winding
Controlled winding tension, turn-count verification, and insulation paper application for each coil.
Assembly
Core-coil assembly with dimensional checks for fit, clearance, and clamping force.
Vacuum Drying
High-vacuum drying ovens remove moisture from insulation before oil impregnation.
Oil Filling
Filtered insulating oil with breakdown voltage >70kV/2.5mm and moisture <10ppm.
Final Testing
Full routine test per IEC 60076-1 — insulation, resistance, ratio, losses, withstand.
Packing
Sea-worthy export packing with shock-fixed crating for ocean shipping.
Shipping
On-time delivery with documentation — test reports, drawings, manuals in English.
Need a Custom Transformer Solution?
Our engineering team can assess non-standard voltage, capacity, impedance, or environmental conditions — and deliver a full proposal within 48 hours.