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XBJ1 compact 12kV (10kV) box-type substation

Category:

Box-type substation

Email:

cy83207718@163.com

General description:

The XBZ1 intelligent and XBJ1 compact container substations are widely used in urban power grid renovation, residential areas, high-rise buildings, industrial and mining enterprises, hotels, shopping malls, airports, railways, oil fields, docks, expressways, and lighting facilities.

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Product Description

A compact arrangement using a "high-voltage compartment-transformer compartment-low-voltage compartment" three-compartment integrated or separate box design. This integrates 12 kV switchgear, oil-immersed/dry-type transformers, 0.4 kV low-voltage switchgear, and intelligent monitoring units into a weather-resistant metal enclosure. It is transported and hoisted as a single unit; on-site installation only requires connection of the input and output cables before energization.

1. Key Parameters
• Rated voltage: High voltage 12 kV (maximum operating voltage 12 kV, power frequency withstand voltage 42 kV/1 min); Low voltage 0.4 kV
• Rated capacity: 50 kVA – 1250 kVA (oil-immersed/dry-type transformer optional)
• High-voltage switch: SF6 gas-insulated ring main unit (C-GIS), rated current 630 A, short-circuit breaking capacity 20 kA/4 s
• Low-voltage switch: Drawer-type or fixed-partition type, rated current 400 A – 2000 A, short-time withstand current 30 kA/1 s
• Protection level: Enclosure IP54-D (outdoor), internal high-voltage compartment IP67; Noise ≤ 55 dB (at 1 m)
• Altitude: ≤ 2000 m; Ambient temperature: –45 ℃ ~ +45 ℃; Seismic intensity: 8 degrees

2. Typical Dimensions (1250 kVA Example)
Length × Width × Height ≈ 3600 × 2450 × 2650 mm, Overall hoisting weight ≈ 7 t

3. Application Scenarios
• Capacity expansion of urban distribution network substations, renovation of old residential areas
• 12 kV grid connection of commercial and industrial rooftop photovoltaic/distributed wind power
• Emergency power supply for data centers, hospitals, and rail transit
• Temporary power supply for construction, mobile power supply for oil fields/mines

4. Standards and Certifications
Complies with GB/T 17467, IEC 62271-202, DL/T 537, and has passed national-level full-type testing (TTA) and seismic and wind resistance (35 m/s) verification.

Using a compact 12 kV transformer substation enables "hoisting and grid connection on the same day", minimizing downtime and reducing the overall life-cycle cost.

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