ZGS Series American-Type Prefabricated Substation
The American-style fully sealed, highly integrated solution combines high voltage load switch/fuse protection, transformer, and low voltage power distribution equipment in one unit; strong heat dissipation and overload capability with flexible configuration, ideal for ring main and branch power supply.
Product Introduction
Key Specifications
Rated Capacity
50kVA～2500kVA
Rated Voltage
6kV、10kV、20kV、35kV
High-voltage side rated current
100A～630A
Low-voltage side rated current
100A～4000A
Rated Frequency
50Hz/60Hz
Applications
Ring main power supply
Urban ring mains and branch power supply, focusing on high integration and small footprint
For commercial and industrial use
Dedicated customer substation facilities, emphasizing flexible configuration and overload capacity
Outdoor sites
Outdoor distribution branch stations, with focus on sealing and environmental adaptability
Product Overview
- Compact and easy to install: small footprint and compact structure shorten construction time and simplify installation and relocation
- Fully sealed protection: hermetically sealed enclosure that is dustproof and moisture-proof for complex environments
- Efficient heat dissipation and overload capability: directed ventilation design delivers faster cooling and stronger short-time overload capacity
- Flexible configuration: dry-type, oil-immersed, or amorphous alloy options; terminal/ring-main schemes available; easy to expand
- Intelligent monitoring: supports CT/PT and protection communication, with smart meters for remote monitoring, control, and data acquisition
- Data-driven O&M: optional display and data platforms enable centralized collection and analysis, supporting proactive maintenance and energy management
Product Features
Modular licensed manufacturing
Uses Schneider-licensed technology and modular production to ensure excellent quality.
User-friendly design
User-oriented design for easy operation and convenient access to documentation.
Fully sealed structure
Safe and reliable fully sealed design with a rational structure and high operational reliability.
Efficient Temperature Control System
Equipped with an efficient ventilation system with flexibly settable temperature control values to adapt to various environments.
Compact structure
Compared with the European-style prefabricated substation, the American-style unit is smaller—only about 1/3 the volume of a European-style unit of the same capacity—with a smaller footprint.
Strong overload capability
Excellent heat dissipation and strong overload capability for more efficient, reliable operation.
Standards and certifications
GB/T 17467
High Voltage/Low Voltage Prefabricated Substation
GB 1094
Power transformer
GB/T 11022
Common technical requirements for high-voltage switchgear and controlgear
GB/T 7251
Low-voltage switchgear and controlgear assemblies
IEC 62271-202
International standard for high/low voltage prefabricated substations
Technical Advantages
R&D cloud platform
Integrates electromagnetic optimization design, parametric drawing, performance analysis, structural optimization, and automatic drawing output for transformers, enabling shared transformer design resources and search, modification, and version control of all kinds of data.
Simulation Analysis
Flow field, temperature field, electric field, leakage magnetic field, wave process, and short-circuit force. The R&D and design of every product series are verified through flow field and temperature field simulation analysis to determine the winding average temperature rise and hot-spot temperature, ensuring product performance.
Smart O&M platform
By collecting key data such as transformer temperature, current, voltage, vibration, and grid harmonics, it enables online power quality analysis and fault alarms, and can be installed on mobile phones.
