Intelligent Integrated Substation Manufacturers – Smart Compact Solutions
Subian Electric manufactures intelligent integrated substations – compact units that combine transformer, switchgear, protection and monitoring in one factory-tested enclosure. Subian’s 50,000-square-metre factory in Xuzhou, Jiangsu, China, has served utilities and renewable developers in 50+ countries since 2019.
As a factory-direct manufacturer and supplier, Subian builds photovoltaic step-up and wind power combined substations with intelligent monitoring options, factory pricing and complete documentation.
Send your single-line diagram and monitoring requirements. Subian’s export team will respond with a quotation and technical proposal.
Intelligent Integrated Substations Manufactured by Subian
YB prefabricated substations, YBM-35/0.8 photovoltaic step-up units and ZGS-35/0.8 wind power combined substations with integrated protection and monitoring.
What Is an Intelligent Integrated Substation?
An intelligent integrated substation packages the transformer, HV switchgear, LV panel and protection into one unit, with monitoring and communication options that let operators supervise the asset remotely.
These units are the standard solution for renewable projects and remote distribution – one factory-tested asset that arrives ready to connect and operate.
What Buyers Check Before Ordering
- Integrated unit – transformer, switchgear, LV panel and protection in one enclosure.
- Monitoring options – remote supervision and communication readiness.
- Renewable-ready – PV step-up and wind power combined configurations.
- 50,000m² factory – enclosure fabrication, assembly and testing in-house.
- 350+ employees – engineering, production and export teams.
- OEM / ODM & wholesale – custom branding, packaging and volume supply.
Main Types of Intelligent Integrated Substations
Subian manufactures three integrated configurations:
YB prefabricated type
Prefabricated
Standard integrated substation for utility and commercial projects.
YB or YBM / factory wired
YBM photovoltaic step-up
PV step-up
Solar-specific units with transformer and switchgear for PV plants.
Inverter duty / low loss
ZGS wind power combined
Wind
Reinforced units for wind farm collector and step-up duty.
Combined transformer unit
Intelligent Integrated Substation Specifications
| Parameter | Specification |
|---|---|
| Rated voltage | 6 kV – 35 kV (HV) / 0.4-0.8 kV (LV) |
| Rated capacity | 50 kVA – 2500 kVA |
| Configuration | Transformer + switchgear + LV + monitoring |
| Enclosure | IP43 / IP54 |
| Frequency | 50/60 Hz |
| Standard | IEC 60076 / GB 17467 |
How to Compare Intelligent Integrated Substation Suppliers
Quotations for this equipment often look identical on the first page. The difference sits in what is attached behind the number, and in the three or four lines that decide the installed cost rather than the purchase price.
| What to compare | What a thin quotation leaves out | What to ask for |
|---|---|---|
| Scope split | A price for the enclosure only | Who supplies the transformer, RMU, LV board, protection and the civil base |
| Single-line diagram | A catalogue layout | The SLD the package is built to, approved before production |
| Protection philosophy | A fuse only | Relay types, CT ratios, trip matrix and the coordination study |
| Testing | A routine test at the panel | FAT of the complete package, with the witness named |
| Transport | Overall dimensions | Shipping splits, lifting points and maximum transport width |
| Site work | Not included | Commissioning scope, cable terminations and the document handover |
Buyers who compare on price alone usually discover the gap at commissioning. The six lines above are the ones that decide whether the unit or the panel can be energised without site work. OEM and ODM supply is available where the nameplate, manual and packing have to carry a different brand.
Which Standard Applies to Intelligent Integrated Substation
The purchase specification decides the insulation level, the enclosure test and the nameplate data. These are the standards buyers normally name in the enquiry.
| Standard | What it covers | When it is asked for |
|---|---|---|
| IEC 62271-202 | Prefabricated substations | Compact and skid-mounted packages |
| IEC 60076-1 | Power transformers | The transformer inside the package |
| IEC 62271-200 | MV switchgear | RMU and incoming panels |
| IEC 61439-2 | LV assemblies | The LV distribution board |
| IEEE C57.12.28 | Enclosure integrity and tamper resistance | Public-access sites in North America |
| IEC 60529 | Degrees of protection (IP code) | Outdoor and coastal sites |
Where two standards conflict, the purchase specification wins and the conflict is recorded on the drawing before production. Type test reports are issued against the model, so ask for the report that names the rating you are buying.
Integrated Substation Manufacturing at Subian’s 50,000 m² Factory
Enclosure fabrication, transformer assembly, switchgear integration, wiring and complete testing are controlled at Subian’s Xuzhou facility.
Production Workshop
Controlled winding, core processing and vacuum drying with quality checkpoints between every stage, so quality is built in from the start.
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Quality & Testing Center
Routine inspection on every unit before delivery, with type test reports supporting project approval and market certification.
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Materials & Components
Core materials, windings and components are checked against the approved bill of materials on every production run.
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OEM / ODM / Agency Supply
Custom branding, packaging and configurations for global partners – from nameplate to complete product design – supported by a dedicated export team.
Learn More →OEM/ODM & Wholesale Integrated Substation Supply
Renewable developers and distributors can brand or resell integrated units with custom nameplates and documentation.
OEM / ODM
Factory-DirectCustom branding, packaging and product variants built on Subian’s standard platforms – from a nameplate to full product design.
Custom nameplate · Custom packaging · Full test docs
Wholesale Supply
Volume PricingFactory pricing with flexible container quantities, mixed models per container and reliable global shipping for volume buyers and importers.
Container MOQ · Mixed models · Global shipping
Distributor Support
Channel PartnersDedicated account management, technical documentation and priority production for distributors and project clients.
Account manager · Sales material · Priority lead times
Integrated Substation vs Conventional Substation
Conventional substations need extensive civil work, separate equipment contracts and on-site testing. An integrated substation arrives factory-tested with protection coordinated – connecting in days.
For renewable projects on tight schedules, the integrated approach reduces cost, risk and commissioning time.
Choosing an Intelligent Integrated Substation Manufacturer
Verify complete-unit testing, renewable application experience and monitoring integration capability. These determine how smoothly the unit performs in the field.
Subian Electric offers a 50,000m² factory, 350+ employees, ISO9001, CE and UL certification and export to 50+ countries with renewable substation experience.
Send your single-line diagram and monitoring requirements – Subian will respond with a quotation.
Certifications & Quality Assurance
Subian’s integrated substations are produced under ISO9001, ISO14001 and ISO45001 management systems, with CE and UL certification and complete factory testing.
Product Certifications
10 kV Dry-Type Transformer Certificate
35 kV Transformer CB Certificate
35 kV Transformer CE Verification
Transformer CE Certificate
Dry-Type Transformer Test Verification
ISO 14001 Environmental Management
ISO 45001 Health & Safety
ISO 9001 Quality Management
110 kV Transformer Type Test Report
UL Certificate of Compliance
Intelligent Integrated Substation FAQ
Common questions about intelligent integrated substations and factory sourcing.
What is an intelligent integrated substation?
Can it be used for solar or wind projects?
What monitoring options are available?
How fast is installation?
What does an intelligent substation monitor?
What is the lead time?
How long does a Intelligent Integrated Substation project take?
Can the package be supplied to a utility specification?
Contact Subian
Need the Right Specification?
Tell Subian your target market, product type, quantity and technical requirements. Subian’s team will help you identify a suitable configuration for your project.