Prefabricated Substation
Prefabricated Substation
As a leading prefabricated substation manufacturer, Zhejiang Juhongkai designs and supplies high-performance modular transformer substations suitable for residential, commercial, and renewable energy distribution networks. Our products feature compact design, quick installation, and reliable protection systems.
| Product Model | Product Type | Modular Advantages | Application |
|---|---|---|---|
| YBZ-12 | Intelligent Prefabricated Substation | Integrated smart monitoring, remote control, compact design | Urban distribution networks, smart grid projects |
| YB-12 | State Grid Standardized Prefabricated Substation | Complies with China State Grid standards, plug-and-play | National grid reconstruction, rural power upgrade |
| YB New Energy | New Energy Prefabricated Substation | High voltage resistance, compatible with solar/wind power grid connection | Wind farms, solar power plants |
| YBW | New Energy Chinese-Style Substation | Customizable size, adapted to Chinese outdoor industrial environments | Industrial parks, new energy industrial zones |
| ZGS11 | New Energy American-Style Substation | Oil-immersed transformer, low maintenance, American standard design | Overseas new energy projects, American-style power systems |
1. Modular R&D & Standardization Capability
The first domestic enterprise to complete R&D, network access testing, and batch supply of *standardized & customized prefabricated substations*. Covering State Grid standards (YB-12), new energy (YB New Energy), and American/Chinese-style (ZGS11/YBW) designs, supporting plug-and-play on-site installation.
2. CNAS-Accredited In-House Lab (Modular Performance Testing)
Lab certified by CNAS – conducts targeted tests for prefabricated substations:
- Overall insulation performance test (adapt to outdoor/industrial environments)
- Module connection reliability test (ensure on-site assembly efficiency)
- Extreme temperature resistance (-30℃~+60℃, for new energy/wind power projects)
- Noise reduction test (for urban/suburban residential areas)
3. Smart Prefabrication & Rapid Delivery
Equipped with a "smart quality control brain" and modular production lines – pre-integrate transformers, switchgear, and control systems in the factory, reducing on-site construction time by 60%. Support batch delivery (e.g., 30-day lead time for YB-12 State Grid substations).
4. Full-Lifecycle Technical Support
As a professional manufacturer, we provide beyond "product supply": on-site installation guidance, module debugging, and 5-year maintenance plans, solving prefabricated substation "installation & operation" pain points.
Rated voltage: 3.6–40.5 kV; rated capacity: up to 2500 kVA
Factory-assembled modular design for easy transport and installation
Integrated HV/LV equipment, protection relay, and SCADA-ready interface
Anti-corrosion enclosure with stainless steel or aluminum-zinc panel
Temperature control and intelligent fault detection system
Urban residential and commercial complexes
Industrial manufacturing zones
Renewable energy (solar, wind) power generation sites
Infrastructure and transport projects
Juhongkai’s production facility is equipped with advanced sheet-metal forming, transformer assembly, and electrical testing equipment. All prefabricated substations undergo strict quality inspection including dielectric, temperature-rise, IP protection, and mechanical strength tests to meet IEC, ISO, and CE standards.
OEM & ODM support for voltage, capacity, and enclosure material
Compliance with IEC 62271 / GB 17467 standards
Customization for local grid codes and environmental conditions
Comprehensive Integration: Combines HV, transformer, LV systems in one unit.
Flexible Design: Multiple layout configurations available for diverse site requirements.
High Safety & Protection: Overcurrent, earth fault, and temperature protection systems.
Fast Installation: Plug-and-play delivery reduces on-site labor cost.
Strong R&D Team: Experience in renewable and smart grid applications.
"There is always a ring main unit suitable for you!" Juhonkia continues to introduce new products in the field of ring main units. The ring main unit series products achieve full coverage of voltage levels and different insulation media products. It is the first domestic enterprise to simultaneously complete the R&D, manufacturing, network access testing and batch supply of standardized and customized SF6 gas insulation, solid insulation, environmentally friendly gas insulation, atmospheric air insulated ring main switchgear primary and secondary integrated ring main switchgear.
Hangzhou Metro
Wind power
