OEM YB□-12 Prefabricated Transformer Substation for Power Distribution Suppliers, Companies

1. The YB□-12 prefabricated substation offers 50-1600kVA capacity for 6-10kV networks. This prefabricated substation features 630A current rating, 20kA short-circuit withstand, and IP23 protection. Operating from -25°C to +40°C, the prefabricated substation is ideal for urban grids, industrial parks, and construction sites.

2. Compact and compliant (GB17467), this prefabricated substation combines HV/LV equipment with oil/dry-type transformers. The YBâ–¡-12 prefabricated substation supports ring-network or terminal power modes, with seismic resistance for harsh environments.

Product Description

Type Designation
Type Designation Diagram
1Prefabricated Substation
2Structural Feature: P-Triangular Layout; M- Rectangular Layout
3Design Serial Number
4Rated Voltage on High-Voltage Side (kV)
5Rated Voltage on Low-Voltage Side (kV)
6Rated Capacity of Transformer (kVA)
Operating Conditions
Altitude: ≤ 1000m
Environmental temperature: -25 ℃~+40 ℃, (highest monthly average temperature +30 ℃, highest annual average temperature +20 ℃)
Relative humidity: daily average not exceeding 95%, monthly average not exceeding 90%
Seismic horizontal: horizontal acceleration of 0.4m/s2, vertical acceleration of 0.15m/s2
The installation location has no severe impact, no serious pollution or chemical corrosion, and no conductive dust explosion hazard.

Note: If ordering this product exceeds the above conditions, please consult for technical support.

Product Display
Substation Unit 1
Substation Unit 2
Substation Unit 3
Substation Unit 4
Substation Unit 5
Substation Unit 6
Technical Parameters
No. Name Unit High-Voltage Equipment Transformer Low-Voltage Equipment
1Rated VoltagekV6/106/0.4, 10/0.40.4
2Rated CapacitykVA-50~1600-
3Rated CurrentA200, 400, 630-100~3200
4Rated Short-Circuit Breaking CurrentkALoad switch: 400-600A; Composite: Fuse-dependent-15~63kA
5Rated Short-Time Withstand CurrentkA16, 20 (4S)-15(1s) / 30(1s)
6Rated Peak Withstand CurrentkA31.5, 50-30 / 63
7Power-Frequency Withstand Voltage (1min)kVPhase-to-phase: 32/42; Isolation: 36/4825/35 (Oil); 20/28 (Dry)≤0.3, 2; >0.3, 2.5
8Lightning Impulse Withstand VoltagekVRelative-to-ground: 60/75; Isolation: 70/8560/75-
9Noise LeveldB-55-
10Enclosure Protection Level--IP23-

Note: For transformers with a capacity below 200kVA, items 5 & 6 are not required.

Installation Dimensions Diagram
Installation Dimensions
1. Roof
2. Louvered Vent
3. External Metering Box
4. Lifting Ring
5. Channel Steel Base Frame
6. Door
7. Strip Brick/ Brick-Pattern Cladding
8. Concrete Foundation
9. Foundation Ventilation Opening

Note: A and B are the external dimensions of the substation base.

Ordering Notice
Provide product ordering drawings, including wiring diagrams, transformer capacity, and component specifications.
Specify requirements for electric energy metering and reactive power automatic compensation devices if needed.
Indicate the capacity of compensation capacitors and requirements for the metering transformer.
Specify specific requirements for the surface treatment of the product enclosure.
Frequently Asked Questions
1. What is the maximum altitude for standard operation? The standard prefabricated substation is designed for installation at altitudes not exceeding 1000 meters.
2. What is the allowable ambient temperature range? The equipment operates reliably within a temperature range of -25 ℃ to +40 ℃.
3. What transformer capacities are supported? The technical specifications cover transformer capacities ranging from 50 kVA up to 1600 kVA.
4. Can the substation handle high-humidity environments? Yes, it is designed for environments with a daily average relative humidity of up to 95% and a monthly average of 90%.
5. Which standards do these substations comply with? Our products comply with GT/T 17467 "Prefabricated High/Low-Voltage Substations" and DL/T 537 technical conditions.
6. Is customization available for the exterior and metering? Yes, customers can specify surface treatment requirements and configure specific electric energy metering or reactive power compensation devices during the ordering process.

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