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Advanced Compact & Mobile Transformer Substations

Premium engineered power solutions from Ningbo Tianan (Group) Co., Ltd — delivering reliability, efficiency, and durability for industrial, renewable, and utility applications worldwide.

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Compact Transformer Substation

About Us

Ningbo Tianan (Group) Co., Ltd is a leading manufacturer of compact and mobile transformer substations, specializing in high-efficiency power distribution systems for industrial, commercial, and renewable energy sectors.

With decades of engineering excellence, we deliver turnkey solutions that meet international standards including IEC, ANSI, and C57.12. Our products are designed for durability, safety, and ease of installation in both indoor and outdoor environments.

  • ISO & IEC Certified Manufacturing
  • Global Export to 80+ Countries
  • Custom Engineering & Rapid Deployment
  • 24/7 Technical Support & After-Sales Service

Our Product Range

High-performance, factory-assembled power systems designed for reliability, scalability, and long-term operation in demanding environments.

Oil Compact Transformer Substation 2000kVA

Oil Compact Transformer Substation 2000kVA

  • Voltage: 24.2kV
  • Cooling: ONAN
  • Application: Industrial Power Supply
  • Environment: Outdoor
ANSI C57.12 Compact Substation

ANSI C57.12 Compact Substation

  • Voltage: 20,000/400V
  • Capacity: 820kVA
  • Standard: ANSI C57.12
  • Protection: IP55
13.8kV Outdoor Compact Substation

13.8kV Outdoor Compact Substation

  • Rated Voltage: 13.8kV (HV)
  • Tap Range: ±2x2.5%
  • Application: Outdoor Installation
  • Design: AIS / C-GIS
1600kVA Wind Power Substation

1600kVA Wind Power Substation

  • Capacity: 1600kVA
  • Application: Wind Power Generation
  • Rated Voltage: 35kV
  • Cooling: ONAN
Cast Resin Dry Type Transformer

Cast Resin Dry Type Transformer

  • Voltage: 6–35kV
  • Cooling: Natural Air (AN/AF)
  • Insulation: Epoxy Resin
  • Application: Indoor Industrial
10-35kV Oil Immersed Transformer

10–35kV Oil Immersed Transformer

  • Voltage: 10–35kV
  • Insulation: High-Grade Mineral Oil
  • Standard: IEC Compliant
  • Environment: Outdoor
KYN28 24kV Switchgear

24kV KYN28 Switchgear

  • Type: Metal-Clad, Vacuum Circuit Breaker
  • Rated Current: 630/1250A
  • Frequency: 50/60Hz
  • Busbar: 3-Phase, 4-Wire
132kV Mobile Substation

132kV Mobile Substation

  • Main Capacity: 110–132kV
  • Type: Vehicle-Mounted, Semi-Trailer
  • Application: Emergency & Temporary Power
  • Customizable: Tap Changer & Winding
View All 200+ Products

Why Choose Our Substations?

Engineered for performance, safety, and long-term reliability in the most demanding environments.

IP55 Protection

Dust-tight and protected against water jets — ideal for harsh outdoor and industrial conditions.

High Efficiency

Low losses, high reliability, and optimized cooling systems ensure maximum energy efficiency.

Plug-and-Play

Factory-assembled and tested — rapid deployment with minimal on-site work required.

Global Standards

Compliant with IEC, ANSI, and other international standards for safety and performance.

200+
Products Available
80+
Countries Served
40+
Years Experience
100%
Factory Tested

Frequently Asked Questions

What is a compact transformer substation?

A compact transformer substation is a pre-assembled, factory-tested power distribution unit that integrates a transformer, switchgear, and protection systems into a single enclosure. It's designed for quick installation and reliable operation in industrial, commercial, and utility applications.

Can these substations be used outdoors?

Yes, many of our compact and mobile substations are designed for outdoor installation with IP55 or higher protection ratings, ensuring resistance to dust, moisture, and extreme weather conditions.

Do you offer custom solutions?

Absolutely. We provide fully customizable designs based on voltage, capacity, environmental conditions, and integration requirements. Our engineering team works closely with clients to deliver tailored power solutions.

What certifications do your products have?

Our products comply with international standards including IEC, ANSI C57.12, and ISO. All units undergo rigorous factory testing for insulation, temperature rise, and short-circuit performance.

Get in Touch

For product inquiries, technical support, or custom solutions, visit our official website to connect with our team.

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