Compact Substation

Prefabricated & Package Substations

A compact substation integrates medium voltage switchgear, a distribution transformer and low voltage distribution boards inside a single weatherproof enclosure. The unit arrives pre-wired and routine tested, so site work is reduced to foundation, cabling and commissioning.

Key Features

• Three Compartment Layout: Separate HV, transformer and LV compartments with mechanical interlocks and internal arc classified construction to protect operators.
• Weatherproof Enclosure: GRP, double layer insulated or reinforced steel enclosure with IP54 to IP65 protection, sand proof and anti condensation design for extreme climates.
• Flexible Transformer Choice: The transformer compartment accommodates either oil immersed (mineral or ester oil) or cast resin dry type transformers to suit the fire and environmental requirements.
• SCADA Ready: Protection relays, metering and remote monitoring interfaces from major brands can be supplied for remote supervision.
• Fast Site Deployment: Pre-wired, pre-tested and delivered as a single unit, cutting site labour and commissioning time significantly.

Compact Substation Series

Technical Specifications

Item	Specification
Type	Prefabricated compact / package substation
Rated Voltage	6 kV / 10 kV / 11 kV / 20 kV / 33 kV / 35 kV
Transformer Capacity	100 kVA – 2,500 kVA
HV Switchgear	GIS or AIS ring main unit (RMU)
LV Distribution	Main distribution board with outgoing feeders
Enclosure Material	GRP, double layer insulated, or reinforced steel
Protection Degree	IP54 standard, IP65 optional
Operating Temperature	-45 °C to +50 °C (climate dependent design)
Internal Arc Classification	IAC classified HV compartment
Cooling	Natural ventilation, optional forced air cooling
Standards Compliance	IEC 62271-202 / IEC 62271-200
Routine Testing	Full factory routine test per IEC 62271-202

Note: when ordering beyond the above conditions, please consult our engineering team so we can confirm a suitable design for your project.

Typical Applications

• Utility distribution networks and urban ring main systems
• Industrial parks, factories and manufacturing plants
• Data centres and continuous load facilities
• Mining, shale oil, renewables and remote site power supply
• Commercial complexes and residential developments

Customisation Options

• Configuration: Loop feed or radial feed, single or double transformer arrangement
• HV Compartment: GIS or AIS ring main unit, internal arc classification, mechanical interlocking
• Transformer Compartment: Liquid filled (mineral or ester oil) or cast resin dry type, oil containment bunding, ventilation and forced cooling
• LV Compartment: Main distribution board, automatic transfer switch, power factor correction, SCADA ready metering and protection relays
• Enclosure & Environment: GRP or steel enclosure, sand proof, anti condensation heaters, walk-in modular design for large industrial units

How We Support Your Project

• Pre-Sales Technical Consultation: Our engineers review your load list, single line diagram and site conditions to confirm the correct rating, voltage class and construction before you order.
• Customization Support: Winding material, impedance, tapping range, enclosure protection degree and accessory set can all be tailored to your project specification.
• Installation & Commissioning Support: General arrangement drawings, installation manuals and remote engineering assistance for accurate installation and minimal downtime.
• After-Sales Support: Remote troubleshooting, maintenance guidance and fast spare parts availability to keep the transformer in reliable service.

FAQ

Why Buyers Choose Youge

• Customised power solutions delivered for international industrial and utility projects
• Trusted by distributors and EPC contractors across multiple export markets
• Routine and type tested in house to IEC 60076 / IEEE C57.12 before dispatch