1. Industry Overview
Prefabricated substation (also known as "box-type substation") is a type of power distribution equipment that integrates high-voltage switchgear, transformers, low-voltage distribution devices, etc. in a closed box. It is widely used in power, industry, new energy and other fields. With the advancement of smart grid and energy digital transformation, traditional substations (such as YB series) are gradually upgrading to intelligent and integrated ones (such as YB6 Intelligent Integrated Substation).
Market drivers
◆Urbanization and grid transformation: Urban land resources are tight, and prefabricated substations replace traditional civil substations.
◆New energy grid connection needs: Distributed energy such as photovoltaics and wind power requires flexible and intelligent distribution solutions.
◆Energy efficiency and environmental protection requirements: Dry-type transformers and intelligent monitoring technology reduce energy consumption and meet the "dual carbon" goals.
◆Digital grid construction: State Grid and China Southern Power Grid promote the pilot application of smart substations (such as YB6).
Main application areas
| Field | Traditional YB series | YB6 smart substation |
|---|---|---|
| Urban power distribution |
Residential areas, commercial centers |
Smart cities, microgrids |
| Industrial power |
Factories, mines |
Smart manufacturing, data centers |
| New energy |
Small photovoltaic power stations |
Integrated photovoltaic storage and charging, virtual power plants (VPPs) |
| Emergency power supply | Temporary construction power | Rapid disaster response, mobile energy storage |
2. Technology development trend
Traditional prefabricated substation (YB series)
Core features: modular, compact, economical and applicable.
Technical limitations:
Relying on manual inspection, slow fault response.
Lack of data interaction capabilities, difficult to adapt to smart grid.
Intelligent integrated substation (YB6)
Key technological breakthroughs:
Internet of Things (IoT) integration: real-time monitoring of temperature, load, and power quality.
AI predictive maintenance: analyze equipment life through historical data to reduce sudden failures.
Energy management optimization: dynamic reactive power compensation, demand-side response (DR).
Multi-energy interface: supports photovoltaic, energy storage, and charging pile grid connection.
Core difference comparison table
| Comparison Items | Traditional YB series | YB6 Intelligent Integrated Substation |
|---|---|---|
| Intelligent level | Basic protection and metering functions, optional simple monitoring. | Highly intelligent, integrating the Internet of Things (IoT), remote monitoring, and AI diagnosis. |
| Structural design | Split module (physical separation of high voltage/transformer/low voltage room). | Highly integrated, possibly using a common box or compact integrated design. |
| Data management | Local data recording, manual meter reading required. | Cloud data synchronization, supporting big data analysis and predictive maintenance. |
| Protection system | Conventional overcurrent and short circuit protection. | Adaptive protection algorithm, supporting fault self-healing and grid interaction (such as V2G). |
| Energy efficiency management | Basic reactive power compensation. | Dynamic reactive power compensation, load optimization, and energy efficiency analysis. |
| Applicable scenarios | Conventional power distribution, industrial park, community power supply. | Smart grid, microgrid, and high penetration rate of new energy scenarios. |
Conclusion and Suggestions
Traditional enterprises: gradually upgrade the YB series to add basic intelligent functions (such as remote monitoring).
New energy operators: give priority to smart substations such as YB6 to improve energy management efficiency.
Grid companies: promote standardization and establish smart substation interconnection protocols.
If you have any needs or questions about YB series prefabricated substation or YB6 intelligent integrated substation, please contact us :pannie@hdswitchgear.com. Our professional team will provide you with technical consultation, solution customization and after-sales service.
