Manufacturing Factory
The products of industial Group re used invanousindusties,such as stelferoaloy,and electrolwsis. The productsindlude fumace transformers,recifersphase shiters,cycloconerters and series reactors,witheach component plaving a iferentrole inthese industes.Arya Transfo indlustial Group manufactres vanoustypes ofumace transfomers andretifers,ensuringtheymeel the specific needs of their industrial applications.
500kV and Below Power Transformer Production Line
Production Environment & Materials
High-precision core cutting lines
Class 100K cleanrooms
Raw materials and components sourced from our own factory or verified reputable vendors (e.g., MR, ABB, Huaming, GE)
Core Equipment & Technology
Critical machinery from globally renowned suppliers ensures micron-level accuracy and repeatable quality
Advanced electromagnetic simulation (ANSYS Maxwell/JMAG) optimizes performance for ultra-low losses, high efficiency, and short-circuit resilience
Manufacturing Management & Optimization
Lean manufacturing and Six Sigma principles drive continuous improvemen
Real-time MES (Manufacturing Execution System) monitoring
Digital twin-assisted process optimization
100% traceability from raw materials to shipment
Precision Processes & Quality Control
Step-lap core stacking (<0.5mm tolerance)
Controlled atmosphere winding (humidity <30%)
Vapor-phase drying & vacuum pressure impregnation
Ultrasonic coil compaction for enhanced dielectric strength
Robotic laser welding for tank sealing
The Beginning of Everything-RAW MATERIAL
Raw materials and components sourced from our own factory or verified reputable vendors (e.g., MR, ABB, Huaming, GE)
Raw Material Warehouse
Tank
Vacuum-rated oil reservoir with inert-gas headspacefine filtration, and sampling/transfer ports for fillingand maintenance
Laser Cutting
CNC-controlled laser cutting converts CAD data into consistent plate and flange parts with tight tolerances and clean edges.
Shot Blasting
Automated blasting removes scale and conditions welds—even in internal features—establishing a controlled ~50 µm profile for coating adhesion.
Robot Welding
Multi-axis cells run qualified procedures with closed-loop arc/wire control to maintain target penetration and bead geometry; balanced heat input limits distortion and avoids porosity.
Leakage Test
pressurize with dry air/nitrogen and scan welds and flanges using a calibrated ultrasonic detector to pinpoint micro-leaks.
Electrostatic Spraying
Automated electrostatic powder coating with defined pretreatment and monitored cure (typ. 180–200 °C) delivers an 80–120 µm, even film.
Core Process
Raw materials and components sourced from our own factory or verified reputable vendors (e.g., MR, ABB, Huaming, GE)
01
Core longitudinal line
Two high-speed longitudinal slitting/dividing lines with closed-loop tension and automatic knife-gap control deliver width tolerance ±0.02 mm.
02
Core transverse shearing line
Equipped with seven automatic high-speed transverse shearing lines using servo flying shear—45° mitred, step-lap sheets with accurate length and hole pitch for low loss and noise.
03
Fully automatic core lamination equipment
Three L-type single automatic laminators cover standard cores; twenty-two manual stacking stations handle special designs, maintaining ≤0.2 mm misalignment and stable geometry.
04
Finished core
Pre-banded stacks are torque-clamped, spray-coated, then verified for film build, cure, adhesion, and pinholes—ensuring stable assembly and durability.
Winding Workshop
Class 100K Cleanrooms
Class 100K (ISO 8) clean areas control particulates and humidity during insulation and winding—reducing PD risk and improving dielectric reliability.
Horizontal Winding Machine
Equipped horizontal winders with closed-loop tension, foil edge tracking, and interlayer taping,accurate LV/foil coils and fewer corrections.
Vertical Winding Machine
Servo indexing and adaptive tension keep roundness and concentricity on large-diameter coils, ensuring consistent electrical clearances.
Active Part Assembly
Dried HV/LV coils are concentrically fitted to the core to specified gaps; leads and tap-changer routed and insulated; dimensional/PD checks and final cleaning follow.
Accessories Assembly
Active part installation
01
01 / 04
Active part installation
Dried core–coil assembly is lowered into the tank; concentricity and specified radial/axial gaps are set, then press-clamped and braced.
Wiring
02
02 / 04
Wiring
HV/LV leads are routed and insulated; tap leads connected to the OLTC/selector; terminations made to bushings and the marshalling box with creepage/clearance maintained.
Cover & sealing
03
03 / 04
Cover & sealing
Cover and gaskets are fitted, flanges aligned, and bolts tightened to the defined sequence/torque to secure a stable seal.
Accessories installation
04
04 / 04
Accessories installation
Bushings, OLTC drive, radiators/piping, conservator (breather/Buchholz), pressure-relief device, and temperature/level indicators are installed and wired; cable management and cleaning complete the stage.
Active part installation
01
01 / 04
Active part installation
Dried core–coil assembly is lowered into the tank; concentricity and specified radial/axial gaps are set, then press-clamped and braced.
Wiring
02
02 / 04
Wiring
HV/LV leads are routed and insulated; tap leads connected to the OLTC/selector; terminations made to bushings and the marshalling box with creepage/clearance maintained.
Cover & sealing
03
03 / 04
Cover & sealing
Cover and gaskets are fitted, flanges aligned, and bolts tightened to the defined sequence/torque to secure a stable seal.
Accessories installation
04
04 / 04
Accessories installation
Bushings, OLTC drive, radiators/piping, conservator (breather/Buchholz), pressure-relief device, and temperature/level indicators are installed and wired; cable management and cleaning complete the stage.
Oil Treatment Process
Raw materials and components sourced from our own factory or verified reputable vendors (e.g., MR, ABB, Huaming, GE)
01
Oil Storage Tank
Vacuum-rated oil reservoir with inert-gas headspace, fine filtration, and sampling/transfer ports for filling and maintenance.
02
Vacuum oil-filter
heated vacuum dehydration and degassing with multi-stage fine filtration—reduces moisture and dissolved gases to preserve dielectric strength.
03
Vacuum oil-filling equipment
Vacuum oil-filling equipment evacuates the tank, then bottom-fills with heated, degassed oil under controlled flow—minimizing air/moisture, improving impregnation
Testing
Routine/type tests—ratio, IR/tanδ, AC/induced withstand, partial discharge, and losses/impedance—verify dielectric margins, efficiency, and installation readiness..