YBD-12 Landscape Type Underground Box Transformer

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YBD-12 Landscape Type Underground Box Transformer

YBD-12 Landscape Type Underground Box Transformer

The YBD-12 Landscape Type Underground Box Transformer is a modern distribution solution designed for urban environments where both functionality and aesthetics are essential.
Product Advantages

Visual Integration with Environment
The majority of the transformer system is installed underground, leaving only a compact above-ground cabinet exposed.The visible components can be customized to match surrounding landscaping, improving the visual harmony of public spaces.

Land Use Optimization
Underground installation significantly reduces the footprint required for transformer deployment.Ideal for high-density urban areas where surface space is limited or needs to be preserved for pedestrian or green space use.

Operational Safety
All live components are fully enclosed in sealed compartments to prevent accidental contact.High-voltage and low-voltage sections are isolated to enhance electrical safety during maintenance and operation.

Environmental Protection
The structure is resistant to water, dust, and corrosion, suitable for various outdoor conditions.Oil-immersed components are contained in sealed tanks to reduce the risk of environmental contamination.

Noise Control
The underground design and use of low-noise transformer cores contribute to quieter operation.Suitable for deployment in residential neighborhoods and public parks where noise sensitivity is a concern.

Y/① B/②D/③ 口/④口⑤口/⑥

Pre installed
Transformer substation
Underground type
Rated capacity of transformer (kVA)
Rated voltage on high-voltage side (KV)
Rated voltage on low voltage side (kV)

Rated voltage level: 35kV and 10kV and below
◇Frequency: 50Hz
◇Insulation level (see table below)

Category Name Unit Parameter
High voltage switch unit Rated voltage of high-voltage unit KV 10
Rated frequency Hz 50
Rated current A 630
1min power frequency withstand voltage(to ground and phase to phase/isolation break) KV 42/48
Lightning impulse voltage KV 75/85
Rated short time withstand current KA/2s 20
Rated peak withstand current KA 50
Protection level IP67
Low voltage switch unit Rated voltage of low-voltage unit KV 0.4
Rated current of the main circuit A 50~3200
Rated short time withstand current KA/1s 30
Rated peak withstand current KA 63
Number of branch circuits Way 0-32
Protection level IP34
Underground transformer Rated voltage of transformer unit KV 10
Rated capacity KVA 30~1600
Frequency withstand voltage KV 35
Lightning impulse voltage KV 95
Connection level Dyn11
Impedance voltage 4%/4.5%
loss S11
Protection level IP68

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