ZGS11-12 Series Combination American Prefabricated Substation

Functions and Features:

• Fully insulated, fully sealed, and maintenance-free, ensuring reliable operation and personal safety.
• Compact structure with a volume only 1/3 to 1/5 of a European transformer of the same capacity, featuring a lower height.
• Split box design to prevent oil contamination in the transformer oil tank.
• High-voltage side incorporates dual-fuse full-range protection, significantly lowering costs.
• Suitable for both ring networks and terminals, with cable heads that can be connected or disconnected during emergencies under a 200A load current.
• The enclosure is made from a honeycomb double-layer composite panel, offering both thermal insulation and efficient heat dissipation.
• Low-voltage side equipped with an electronic phase failure protector that quickly disconnects the main switch in case of abnormal voltage in the system.
• High-voltage side features an oil-immersed load switch or SF6 load switch, which can be upgraded for electrical operation, paving the way for distribution network automation.

Main technical parameter

Type designation

MODEL: ZGS □ – 12/0.4 (□)□/□
ZGS	Prefabricated substation(Us)
□	Design Number
12/0.4	Rated voltage
(□	High voltage switchgear equipped with main switch category F-loadswitch;F·R-compliantswitch+fuse
□	High-voltage switchgear withoperation Construction category T-playingmechanism; S-manual mechanism
□	Transformer rated capacity (kVA)

Installation dimension drawing

Environmental Conditions:

• Altitude: No higher than 1000m.
• Ambient temperature: Ranges from -35°C to 40°C.
• Relative humidity: Daily average not exceeding 95%, and monthly average not exceeding 90%.
• Installation site: Must be free from fire, explosion hazards, and corrosive chemical gases, with good ventilation. Ground slope should not exceed 3°.
• Note: For special operating conditions, consult with the manufacturer before placing an order.