1250 kVA 11kV S22 Amorphous Alloy Three-Phase Oil Transformer

Technical Specifications

Rated Capacity	1250 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)	21.87 A
Secondary Current (I2)	1739.0 A
Guaranteed No-Load Loss (P0)	1360 W
Guaranteed Load Loss (Pk at 75°C)	9800 W
Short-Circuit Impedance (Uk)	4.5%
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	1950 kg
Insulating Oil Weight	1100 kg
Total Assembled Weight	3850 kg
Overall Footprint (L×W×H)	1750 mm × 1120 mm × 1850 mm
Governing Standards	IEC 60076, BS 171, SON NIS, NERC Code

Equipment Video Walkthrough 100% Tested

Watch 100% factory routine testing & quality control inspections.

Pricing & Availability

Reference FOB Price

USD 11400

Public Marketplace Range

$6,300 – $12,000

Based on public listings. Often lead-generation or minimum-config prices — not full-scope.

Minimum Order

1 Set

Units in Stock

5

Model / Series

S22

Indicative export reference only. Final offer depends on voltage, standards, materials, accessories, and project scope. Request a firm quote →

Product Information

Status

Published

Product ID

1250_KVA_11KV_S22_AMORPHOUS_ALLOY_THREE_PHASE_OIL_TRANSFORMER

Last Updated

2026-04-06 00:58:37.119471

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

1250 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

Internal Component Engineering Anatomy

High-precision 3D engineering cutaway model illustrating the core, windings, insulation, conservator tank, and protection accessories.

Oil-immersed transformer internal 3D cutaway model

High-Grade Silicon Core

Electrolytic Copper Windings

Tap Changer System

Buchholz & Temp Sensors

XinHuan 1250 kVA 11kV S22 Amorphous Alloy Three-Phase Oil Transformer 2D AutoCAD General Arrangement Drawing Blueprint

Engineering Submittal Drawing

2D AutoCAD General Arrangement (GA) Drawing

Official XinHuan factory 2D vector General Arrangement drawing for 1250 kVA 11kV S22 Amorphous Alloy Three-Phase Oil Transformer. Includes front elevation view, top plan view, bushing center-to-center distances, mounting hole footprint, and complete vector group layout.

Full Dimensions ($L \times W \times H$)

Bushing Terminal Distances

Mounting Base Footprint

Vector Group & Title Block

Request CAD Submittal (.DXF / .PDF) Factory Quality Inspection

Frequently Asked Questions

Please send us your required capacity, high voltage, low voltage, frequency, cooling preference, and installation conditions for the 1250 kva s22 amorphous alloy three-phase oil transformer. Our team can recommend a suitable configuration and provide a quotation based on your project requirements.

The product can be produced according to IEC standards and customer technical specifications. Routine factory tests, inspection records, and technical documentation can be provided before shipment. Optional configurations for project-specific grid, environmental, and accessory requirements are available upon request.

Minimum order quantity is 1 Set. The product is prepared for export shipment with suitable packing and transport arrangements based on destination and handling requirements. Technical documents, test reports, nameplate confirmation, and pre-shipment support can be supplied according to order requirements. OEM/ODM support and project-based coordination are available for qualified inquiries.

Related Markets & Resources

🌍

Africa & MENA

11kV & 33kV IEC grid requirements

🌏

Middle East & GCC

IEC 60076 · up to 132kV · high ambient

🌎

Latin America

60Hz ANSI/IEEE · 13.8kV / 34.5kV

Buyer's Guide

How to source from China

IEC vs ANSI Standards

Which standard for your project?

Standards & Compliance