630–5000 kVA 20kV European Box Substation

The DINGXIN 20kV European Box Substation is a prefabricated kiosk-type substation that brings the full functionality of a traditional civil-engineering electrical room into a single, factory-built steel enclosure. High-voltage switchgear, a distribution transformer and low-voltage switchgear are scientifically arranged inside a kiosk shell, forming a complete, efficient and stable power distribution system. High-voltage power is fed through HV switchgear, stepped down by the transformer, and then distributed through LV switchgear — all within one transportable, outdoor-rated unit.

Compared with the compact American-style pad-mounted transformer, the European kiosk places greater emphasis on integrated equipment arrangement, accommodating conventional medium-voltage switchgear / ring main units, LV distribution boards and the transformer together — making the enclosure larger but delivering a complete, self-contained substation.

DINGXIN European box substations are composed of transformers, high-voltage switchgear and low-voltage switchgear, closely interconnected by cables or other transmission media. The equipment is arranged in either a "mu" (目) shape or a "pin" (品) shape layout inside a steel-structure kiosk, allowing flexible configuration for different site footprints and operational needs.

All internal equipment installation and commissioning are completed at the factory before delivery. On-site work is limited to fixing the substation on a pre-made base and connecting the inlet and outlet cables — no separate distribution room is required. The kiosk shell structure provides strong mobility, convenient installation and full outdoor capability, making it ideal for both permanent distribution and temporary or relocatable power projects.

The product complies with GB 1094.1-2013, GB/T 11022-2011, GB 7251.1-2013 and JG/T 10217-2013, and its specific operating conditions relate to the required environment of the transformers and switchgear it contains.

• Factory Pre-Commissioned, Plug-and-Play Installation All internal equipment installation and commissioning are completed at the factory before shipment. On-site work is limited to fixing the substation on a pre-made base and connecting inlet/outlet cables — dramatically simplifying deployment.

• High Mobility & Relocatable The kiosk shell structure gives strong mobility. Ideal for temporary electrical engineering projects, the substation can be dismantled and reinstalled at another location for continued use without wasting resources.

• 50% Lower Cost Than Civil Rooms The European box substation saves approximately 50% in cost compared to a civil-engineering electrical room, shortens the construction period by half, and requires no on-site personnel during operation — lowering total project and lifecycle cost.

• Minimal On-Site Construction No separate distribution room is needed — only a simple base must be prepared. This greatly reduces civil works, footprint and construction complexity.

• 5. Flexible "Mu" or "Pin" Layout The HV switchgear, transformer and LV compartments can be arranged in a "mu" (目) shape or "pin" (品) shape structure, adapting to different site dimensions and cable routing requirements.

• 6. Superior Outdoor Protection The oil tank is rated IP68 and the high-voltage / low-voltage chambers are rated IP54, ensuring reliable operation in dusty and wet outdoor environments with noise level as low as 60 dB.

Overall Performance Parameters

High-Voltage Section

Low-Voltage Section

Transformer Section

• Urban Distribution Networks — compact outdoor substation for residential and commercial districts.
• Construction Sites & Temporary Projects — relocatable power supply that can be moved after project completion.
• Industrial Parks & Factories — integrated distribution node for manufacturing facilities.
• Renewable Energy Farms — collector substation for solar and wind installations.
• Mining & Quarries — mobile substation for sites with changing power needs.
• Transportation Infrastructure — railway stations, highways and airports requiring outdoor distribution.
• Port & Logistics Zones — robust outdoor substation for heavy-duty operations.
• Emergency & Backup Power — rapidly deployable substation for disaster recovery and temporary load growth.

Q1: What is a European box substation? A European box substation is a prefabricated kiosk-type substation that integrates HV switchgear, a distribution transformer and LV switchgear into a steel-structure enclosure. It follows the same principle as a traditional civil-engineering electrical room but is factory-built, mobile and suitable for outdoor installation.

Q2: What voltage and capacity does the DINGXIN 20kV European box substation cover? High voltage 10/20/35 kV, low voltage 0.315–0.5 kV, rated capacity 630–5000 kVA (transformer module 50–2000 kVA also available).

Q3: What protection degree does the enclosure offer? The oil tank is rated IP68 and the HV/LV chambers are rated IP54, providing reliable outdoor protection against dust and water ingress.

Q4: How does it compare to a civil-engineering electrical room? It saves approximately 50% in cost, shortens the construction period by half, requires only a simple base instead of a dedicated room, and needs no on-site personnel during operation.

Q5: Can the substation be relocated? Yes. The kiosk shell structure provides strong mobility — ideal for temporary projects, it can be dismantled and reinstalled at another location for continued use.

Q6: What layout options are available? The substation adopts either a "mu" (目) shape or "pin" (品) shape layout, allowing flexible arrangement of HV switchgear, transformer and LV compartments.

Q7: Which standards does the product comply with? GB 1094.1-2013, GB/T 11022-2011, GB 7251.1-2013 and JG/T 10217-2013.

Q8: What vector groups and tap ranges are supported? Vector groups Dyn11, Dyn11yn11 and Yd11d11; no-load tap regulation ±2×2.5%; transformer tap range ±2×2.5% or ±5%.