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YB□-12/0.4 High Voltage/Low Voltage Prefabricated Substation

YB□-12/0.4 High Voltage/Low Voltage Prefabricated Substation

YB□-12/0.4
YB□-12/0.4 high-voltage/low-voltage prefabricated substation (referred to as "European-style box-type transformer") is a compact outdoor complete set of power distribution equipment that integrates high-voltage switchgear, transformers, and low-voltage power distribution devices, and complies with the GB/T 17467-2020 standard. Its core design adopts a modular structure. The high-voltage side can be equipped with a ring network cabinet (such as SF6 or vacuum load switch), the low-voltage side supports a variety of power distribution solutions (such as power distribution, reactive power compensation, etc.), and a high protection level is achieved through the outer shell box.

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Features Technical Indicators Overall Dimension

1. Integrated design: High voltage, transformer, and low voltage are integrated into one, with strong completeness and only 1/10~1/5 of the floor space of traditional substations; it supports "目（mu）"-shaped or "品（pin）"-shaped layout, and is flexible to meet different space requirements.
2. Safe and reliable: Five-protection interlocking: To prevent misoperation, the high voltage room is equipped with a pressure relief channel and arc fault protection; Intelligent temperature control: The transformer room is equipped with a temperature sensor and an automatic air cooling system, and an anti-condensation heating device is optional in extreme environments.
3. Convenient operation and maintenance: Modular components support rapid maintenance, and the low voltage room can expand reactive compensation, power metering and other functions; the high voltage ring network cabinet can integrate FTU to achieve remote monitoring and fault detection, and support distribution network automation upgrades.
Applicable scenarios

1. Urban power grid: ring network power supply or terminal distribution in residential areas, commercial centers, and high-rise buildings.

2. Industrial field: places that require high-reliability power supply, such as industrial and mining enterprises, oil fields, docks, and airports.

3. Temporary power supply: short-term power demand for highways, railway construction, exhibitions, etc.

Parameter Category	Technical Indicators	Unit
Rated Voltage	High Voltage Side 12 Low Voltage Side 0.4	KV
Rated Capacity	Transformer 50~1250 (Oil-Immersed/Dry Type)	kVA
Rated Short-Time Withstand Current	High Voltage Side 25 (4s), Low Voltage Side 50 (1s)	KV
Rated Lightning Impulse Withstand Voltage	High Voltage Side 75, Low Voltage Side 8	KV
Protection Level	Box IP23/IP44, Compartment IP2X	/
Shell Material	Stainless Steel/Aluminum Alloy/Aluminum-Zinc Plate/Composite Material (Optional)