Cast Resin Dry-type Transformer
Fire-safe, low-noise, indoor cast resin transformer for buildings, data centers, and renewable collection. Class F insulation, self-extinguishing.
Technical 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 | 100–3150 kVA |
| Primary voltage | 6, 10, 11, 20, 35 kV |
| Secondary voltage | 0.4 kV / custom |
| Frequency | 50 Hz or 60 Hz |
| Phase | 3-phase |
| Vector group | Dyn11, Dyn1 |
| Impedance | 4.0% – 8.0% (per spec) |
| Cooling method | AN (air natural) or AF (air forced) |
| Tap changer | Off-circuit (OCTC) ±2×2.5% |
| Insulation level | LI75AC35 / per voltage class |
| Temperature rise | 100K (F class); 125K (H class available) |
| No-load loss | Per IEC 60076 / GB/T 10228 |
| Load loss | Per IEC 60076 / GB/T 10228 |
| Noise level | ≤55 dB (typical); ≤50 dB available |
| Protection level | IP00 (standard); IP20/IP31 available |
| Applicable standards | IEC 60076, IEC 60076-11, GB/T 10228 |
| Ambient temperature | -25°C to +40°C |
| Altitude | ≤1000m (derating above) |
| Accessories | PT100 temp sensors, fan control, enclosure, casters |
Product Advantages
Verifiable benefits — not empty claims. Here’s exactly what you get when you choose JINXING.
Fire-Safe
Self-extinguishing cast resin — no oil, no fire risk. Indoor installation safe.
Low Noise
Sound level ≤55dB typical — suitable for building environments.
Partial Discharge Test
PD measurement per IEC 60076-11 — insulation quality verified.
48h Quote
Standard products in 48 hours.
English Docs
Complete documentation in English.
OEM Support
Private label available for building equipment OEM.
Applications
Where this transformer is used — connecting the product to real-world industry applications.
Commercial Building
Indoor basement electrical rooms — fire-safe.
Data Center
IT equipment power supply — high efficiency, low noise.
Renewable Collection
Indoor renewable collection transformers.
Hospital
Medical facility power — fire-safe indoor.
Industrial
Process industry indoor — where oil is not acceptable.
Infrastructure
Metro, tunnel, airport indoor installations.
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.
Material 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.