Oil-Immersed Transformer for Regional Power Distribution

Kazakhstan

Oil-Immersed Transformer for Regional Power Distribution

Country: Kazakhstan

Industry: Power Distribution
Main Product: Oil-Immersed Transformer
Application: Regional Distribution Network
Voltage: 10kV / 0.4kV
Frequency: 50Hz

1.Project Overview

Explore LBAJI’s oil-immersed transformer solution for regional power distribution in Kazakhstan, including manufacturing, testing, export shipment and site commissioning.

The project was designed for a regional power distribution application in Kazakhstan, where reliable medium-voltage transformation was required for industrial and commercial loads.

The transformer solution was designed for a 10kV/0.4kV distribution environment and outdoor installation.

2. Project Challenge

The application required equipment capable of handling:

  • Seasonal temperature variations
  • Outdoor installation
  • Continuous electrical loads
  • Long-distance transportation
  • Reliable operation with limited maintenance

3. LBAJI Solution

LBAJI proposed an oil-immersed transformer featuring:

  • High-quality silicon steel core
  • Optimized winding structure
  • Robust transformer tank
  • Efficient oil cooling
  • Temperature monitoring
  • Pressure relief protection
  • Outdoor installation design

4. Technical Specifications

Parameter Specification
Country Kazakhstan
Project Type Regional Power Distribution
Product Oil-Immersed Transformer
Model S11 / S13 Series*
Rated Capacity 630–1600 kVA*
Rated Primary Voltage 10 kV
Rated Secondary Voltage 0.4 kV
Frequency 50 Hz
Phase Three Phase
Cooling Method ONAN
Insulation Medium Mineral Insulating Oil
Tap Range ±2×2.5% / ±5%*
Vector Group Dyn11*
Installation Outdoor
Ambient Condition Outdoor / Continental Climate
Standards IEC 60076
Application Regional Power Distribution
  • Primary Voltage: 10kV
  • Secondary Voltage: 0.4kV
  • Frequency: 50Hz
  • Capacity: 630–1600kVA
  • Cooling: ONAN
  • Installation: Outdoor

5. Manufacturing & Testing

The transformer goes through:

Core Manufacturing → Winding → Assembly → Vacuum/Oil Treatment → Testing → Final Inspection

6.Packing & Shipment

The equipment is protected with export-grade packing designed for:

  • Moisture protection
  • Mechanical protection
  • Long-distance transportation
  • Container loading

7. Installation

At the project site:

Arrival → Inspection → Crane Lifting → Foundation Installation → Cable Connection → Grounding → Testing → Energization

8. Customer Benefits

  • Reliable power distribution
  • Strong outdoor performance
  • Easy maintenance
  • Stable voltage transformation
  • Long-term operational reliability