What Is Compact Substation? Complete Structure and Application Guide
1. Definition of Compact Substation
Compact substation, also known as box-type substation, is an integrated prefabricated power distribution equipment. It integrates medium voltage switchgear, distribution transformer, low voltage switchgear and auxiliary control system into one closed box structure. It is widely used in global outdoor power distribution projects due to its small occupation, fast installation and complete functions.
2. Internal Three-Part Structure
MV Switchgear Room: Equipped with RMU or MV switchgear, responsible for medium voltage incoming line, power distribution and short-circuit protection.
Transformer Room: Place oil immersed or dry type transformer to complete 11kV/33kV to 400V voltage conversion.
LV Distribution Room: Equipped with low voltage switchgear, responsible for secondary power distribution, overload protection and power output to terminal equipment.
3. Core Advantages of Compact Substation
Fast construction: Factory pre-assembled and pre-tested, only need on-site foundation fixing and cable connection, greatly shortening project cycle.
Space saving: Integrated design reduces land occupation by more than 60% compared with traditional separate substations.
High integration: Complete protection, monitoring and lightning protection functions, stable and safe operation.
Strong adaptability: Support rainproof, dustproof, anti-corrosion and high-temperature resistant customized design.
4. Typical Application Scenarios
EV Charging Station: Perfect for highway charging stations and large parking lot charging projects without independent power distribution room.
Solar Power Farm: Centralized power collection and voltage reduction for photovoltaic power generation systems.
Industrial Park: Outdoor decentralized power distribution for factory zones.
Urban Community and Scenic Area: Beautiful appearance, low noise and no occupied building space.
5. Customization Support
Ningyu Power supports fully customized compact substations: different voltage levels, capacity matching, outdoor anti-corrosion coating, intelligent monitoring system and remote data transmission function. All equipment complies with IEC international standards and adapts to global overseas project environments.
6. Conclusion
Compact substation has become the mainstream power distribution solution for new energy and outdoor engineering projects. It solves the problems of long construction cycle, large land occupation and complex installation of traditional substations. If you need integrated box-type substation solutions for your project, welcome to contact Ningyu Power for technical parameters and factory price.
