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Technical Article

 

IEC 11kV / 33kV / 35kV Substation Manufacturer | Compact & Package Substations

02-02 2026 | By:

Reliable IEC Medium Voltage Substations for Industrial & Commercial Applications

As a trusted IEC 11kV, 33kV, and 35kV substation manufacturer, we provide compact and package substations engineered for safe, efficient, and long-lasting power distribution.
Our solutions are ideal for industrial plants, commercial complexes, renewable energy projects, and utility networks, offering fast installation, minimal footprint, and high operational reliability.

Whether you need a standard design or a fully customized substation, our engineering team delivers IEC-compliant solutions tailored to your project requirements.

yuguang substation

yuguang substation

Substation Voltage Levels & Common Applications

Voltage Level Typical Name Application
11kV 11kV Distribution Substation Small to medium industrial plants, commercial buildings, residential areas
33kV 33kV Medium Voltage Substation Industrial parks, municipal distribution, renewable energy connections
35kV 35kV MV Substation Large-scale industrial, power plants, regional distribution networks

Note: 33kV is widely used in IEC regions, while 35kV is common in Asia and CIS countries. All are fully IEC-compliant.

Compact Sub Stations (CSS)

Compact Sub Stations (CSS)

Compact & Package Substation Solutions

We offer multiple configurations for diverse project needs:

  • Compact Substations (Package Substations):
    Transformer, MV switchgear, and LV panel integrated into one enclosure for quick deployment and space efficiency.

  • Prefabricated / Containerized Substations:
    Fully assembled and tested in the factory, minimizing on-site installation time.

  • Outdoor Metal-Enclosed & E-House Substations:
    Suitable for harsh environments, with high IP ratings and robust insulation.

Our designs reduce civil construction, improve safety, and simplify maintenance.

Key Technical Specifications

Parameter 11kV 33kV 35kV
Rated Voltage 11kV 33kV 35kV
Frequency 50 / 60 Hz 50 / 60 Hz 50 / 60 Hz
Transformer Capacity 100–2500 kVA 500–5000 kVA 500–8000 kVA
Insulation Oil / Dry Type Oil / Dry Type Oil / Dry Type
Cooling ONAN / AN ONAN / AN ONAN
Protection IP23 / IP33 / IP54 IP23 / IP33 / IP54 IP23 / IP54
Installation Indoor / Outdoor Indoor / Outdoor Outdoor / Semi-outdoor

Custom configurations available to meet load, environmental, and local code requirements.

Certifications & Quality Standards

Our substations comply with international and industry standards:

  • IEC 62271 – High-voltage switchgear

  • IEC 60076 – Power transformers

  • ISO 9001 / ISO 14001 – Quality & environmental management

  • CE Certified

  • Type test and routine test reports available

Third-party inspection and factory acceptance tests (FAT) are fully supported.

Delivery Time & Project Support

Substation Type Typical Lead Time
Standard Configuration 4–6 weeks
Customized Design 6–8 weeks
Large Capacity Projects 8–10 weeks

Prefabrication and compact design reduce installation time, ensuring on-time project delivery.

3-Year Warranty & After-Sales Service

We provide a 3-year warranty covering:

  • Transformer, MV & LV switchgear, enclosures, and accessories

  • Technical documentation and commissioning guidance

  • Online support and spare parts availability

Our goal: long-term, stable operation and minimal downtime.

Why Choose Us?

  • Experienced IEC substation manufacturer

  • Flexible 11kV / 33kV / 35kV voltage solutions

  • Compact, prefabricated, and package designs

  • Strict quality control and full factory testing

  • Fast delivery and competitive pricing

  • 3-year warranty and lifetime support

Request a Quotation Today

Looking for a reliable 11kV, 33kV, or 35kV IEC substation?
Contact us today to receive technical drawings, specifications, and a competitive quotation.
Our engineers will help you select the most suitable compact or package substation for your project, ensuring safe, efficient, and long-lasting power distribution.











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