YB 口-12 Prefabricated Substation

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YB 口-12  Prefabricated Substation

YB 口-12 Prefabricated Substation

The YB口-12 Prefabricated Substation is a compact, modular power distribution unit designed to support efficient and secure energy transfer across medium and low-voltage networks. This all-in-one unit integrates high-voltage switchgear, transformer, and low-voltage distribution equipment in a single enclosure. It is particularly suitable for urban power grids, industrial facilities, and infrastructure projects requiring stable and reliable electrical distribution.

Advantages of YB口-12 Prefabricated Substation
Improved Safety
Fully enclosed and insulated compartments reduce the risk of electrical hazards.Equipped with interlocking systems to prevent incorrect operation during maintenance.

Operational Reliability
High-quality electrical components and materials ensure consistent performance under diverse operating conditions.Designed to function steadily in various climates, including areas with high humidity or temperature fluctuations.

Maintenance Convenience
Modular structure simplifies inspection and part replacement.Fault location is facilitated by integrated monitoring and protection devices.

Key Features of YB口-12 Prefabricated Substation
Integrated Design
Combines high-voltage, low-voltage, and transformer compartments into one structure, ensuring unified functionality.Each section is independently accessible for streamlined operation and maintenance.

Environmental Protection
The enclosure is constructed with corrosion-resistant materials and designed to be dustproof and waterproof.Suitable for both indoor and outdoor applications, offering extended service life.

Smart Monitoring Capability
Integrated sensors and protection relays allow for real-time condition monitoring.Remote diagnostics can be supported via communication interfaces for system health analysis.

Thermal Management
Equipped with natural ventilation and optional forced cooling systems.Heat dissipation is enhanced to maintain operational stability during peak loads.

Applications of YB口-12 Prefabricated Substation
Urban Power Distribution
Used in residential neighborhoods, commercial districts, and public infrastructure to ensure stable power supply.Helps in upgrading urban grids with minimal disturbance to the environment and local communities.

Industrial Facilities
Suitable for factories, mining areas, and processing plants that require dependable medium-voltage distribution.Supports heavy machinery operation with consistent voltage and current management.

YB 口①/口②/口③/口④/口⑤/口⑥

Prefabricated substation 
Structural features: P-pin shape; M-mesh shape 
Design serial number 
Rated voltage on high-voltage side (kV)
Rated voltage on low voltage side (KV)
Rated capacity of transformer (kVA)
Serial number Name Unit High voltage electrical appliances Transformer low Voltage Apparatus
1 Rated voltage kV  6/10 6/0.4 10/0.4 0.4
2 Rated capacity kVA 50~1600
3 Rated current A 200、400、630 100-3200
4 Rated short-circuit breaking current A Load switch 400-630 15-63kA
kA The combination switch depends on the fuse
5 Rated short time withstand current kA 16,20(4s) 15(1s)
6 Rated peak withstand current kA 31.5,50 30(1s)
7 Power frequency withstand voltage(1min) kV Phase to ground and phase to phase 32/42 25/35(Oil immersed) 30
8 Lightning impulse withstand voltage(peak) Isolation fracture 36/48 20/28(Dry type) 63
kV Phase to ground and phase to phase 60/75 60/75 ≤0.3,2
9 Cabinet protection level Isolation fracture 70/85 >0.3,2.5
db IP23
10 Noise level 55
11 Executive standards GB/T 17467"High Voltage/Low Voltage Prefabricated Substation"
DL/T537"Technical Conditions for Ordering 6-35kV Box Substation"

Note: When the transformer capacity is less than 200kVA, items 5 and 6 are not required.

① Roof
② Louver
③ External metering box
④Lifting ring
⑤ Slot rigid base frame
⑥ Doors
⑦ Strip brick and imitation brick wall surface
⑧ Concrete foundation
⑨ Foundation vent

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