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Technical Parameters & Ratings
IEC / ANSI CertifiedFactory Standard
Rated Capacity 315 kVA
Primary Voltage (U1) 11,000 V (11 kV)
Secondary Voltage (U2) 415 V / 240 V (3-Phase 4-Wire)
Vector Group Dyn11
Rated Frequency 50 Hz
Cooling Method ONAN (Oil Natural Air Natural)
Primary Current (I1) 5.51 A
Secondary Current (I2) 438.3 A
Guaranteed No-Load Loss (P0) 480 W
Guaranteed Load Loss (Pk at 75°C) 3200 W
Short-Circuit Impedance (Uk) 4.0%
HV Insulation Level LI 75 / AC 35 (11kV Class)
Temperature Rise Limits Top Oil ≤ 50K, Winding ≤ 55K (45°C Ambient)
Creepage Distance ≥ 31 mm/kV (Outdoor Tropicalized Porcelain)
Core & Coil Weight 650 kg
Insulating Oil Weight 420 kg
Total Assembled Weight 1320 kg
Overall Footprint (L×W×H) 1250 mm × 850 mm × 1400 mm
Governing Standards IEC 60076, BS 171, SON NIS, NERC Code
Technical Highlights
This product combines dependable transformer platform design, flexible project configuration, and practical export-oriented construction. It is suitable for applications requiring stable electrical performance, configurable voltage ratios, outdoor durability, and documentation support for international project supply.
Application Scenarios
Utility distribution networks
Industrial plants and workshops
Commercial buildings and mixed-use developments
Public infrastructure projects
Regional and municipal power distribution systems
Key Features
315 kVA rated capacity with optimized core design for energy-saving applications
Three-phase oil-immersed structure for stable outdoor operating performance
class configuration suitable for distribution and industrial feeder networks
Low-loss design approach intended to reduce operating cost over service life
Supports project-based winding, voltage ratio, and accessory customization
Suitable for utility and industrial buyers prioritizing efficiency and life-cycle value
Optional Configurations
Low-voltage side rating and voltage ratio
Frequency: 50 Hz or 60 Hz
Vector group and tapping range
Copper or aluminum winding
Cooling method, accessory package, and monitoring option
Tank structure, coating system, and special environmental adaptation
Color, nameplate language, and document package
Ambient temperature, altitude, and installation condition adaptation