English
English French Portuguese Spanish Russian Arabic Hindi Malay Thai Urdu Vietnamese
Leave Your Message
pro_banner_013
XGN15-12 Box-type Fixed Ring Main Unit Switchgear
Products Categories
Featured Products
High-Quality ZGS□-12 Combined Transformer

High-Quality ZGS□-12 Combined Transformer
YBWF/G-40.5/0.69 Wind Power Transformer/Photovoltaic Power Transformer

YBWF/G-40.5/0.69 Wind Power Transformer/Photovoltaic Power Transformer
SCB□ series 6-10kV Dry-Type Power Transformer

SCB□ series 6-10kV Dry-Type Power Transformer
S□ series 6-10kV Oil-Immersed Power Transformer

S□ series 6-10kV Oil-Immersed Power Transformer
Indoor high voltage vacuum circuit breaker series

Indoor high voltage vacuum circuit breaker series
XGN15-12 Box-type Fixed Ring Main Unit Switchgear

XGN15-12 Box-type Fixed Ring Main Unit Switchgear
TRXGN-12 Air (Environmentally Friendly Gas) Insulated Ring Main Unit

TRXGN-12 Air (Environmentally Friendly Gas) Insulated Ring Main Unit
MNS Low-Voltage Withdrawable Switchgear

MNS Low-Voltage Withdrawable Switchgear
Cable Branch Box with SF6 Load Switch

Cable Branch Box with SF6 Load Switch
35kV European-style cable branch box

35kV European-style cable branch box
XGN15-12 Box Type Fixed Ring Main Unit Switchgear.jpg

XGN15-12 Box-type Fixed Ring Main Unit Switchgear

The XGN15-12(F) and XGN15-12(F·R) are 12kV, 630A fixed indoor AC metal-enclosed switchgear units designed for reliable power control and protection. Ideal for ring main or radial power supply systems, they are particularly suited for prefabricated substations. Equipped with SF6 load switches or fuse-combination load switches, this next-generation switchgear offers compact design, simple operation, and high reliability, making it an excellent choice for urban grid renovation and construction projects.

    Contact us
    Product Details
    Product Details

    Product Model

    1.XGN15-12 Box Type Fixed Ring Main Unit Switchgear.jpg

    Technical Parameters

    Name

    Unit

    Value

    Rated Voltage

    kV

    12

    Rated Frequency

    Hz

    50

    Main Bus Rated Current/Fuse Maximum Rated Current

    A

    630/125

    Main and Ground Loop Rated Short-time Withstand Current

    kA/S

    20/3

    Main and Ground Loop Rated Peak Withstand Current

    kA

    50

    Main and Ground Loop Rated Short-circuit Making Current

    kA

    50

    Load Switch Full Capacity Breaking Times

    Times

    100

    Fuse Breaking Current

    kA

    31.5/40

    Rated Closed Loop Breaking Current

    A

    630

    Rated Transfer Current

    A

    1600

    Mechanical Life

    Times

    2000

    1min Power Frequency Withstand Voltage(peak) Relative,to Ground/Isolation Clearance

    kV

    42/48

    Lightning Impulse Withstand Voltage(peak) Interphase,to Ground/Issolation Clearance

    kV

    75/85

    Secondary Circuit 1min Power Frequency Withstand Voltage

    kV

    2

    Protection Level

     

    IP3X

    Structural Features

    2.XGN15-12 Box Type Fixed Ring Main Unit Switchgear.jpg

    △Cabinet Structure

    The ring main unit cabinet is made of 2mm thick aluminum-zinc plate (or cold-rolled plate after powder coating) riveted and formed. There are two pressure release holes at the back of the cabinet, one for the cable compartment and the other for the load switch/main busbar compartment. This structure ensures maximum protection for personal safety and reliable operation of the equipment.

    △Various Compartmentalized Small Rooms

    1.Busbar Compartment: The busbar compartment is located at the top of thecabinet and connects adjacent switchgears.

    2.Load switch is an independent unit, filled with SF6 gas internally.

    3.Cable Compartment: Approximately 75% of the space is used for cableconnections, fuses, grounding switches, and the installation of CTs and PTs.

    4.Mechanism Room and Interlocking

    The small room contains operating mechanisms and interlocks, as well as position indicators, auxiliary contacts, trip coils, live displays, and interlocks.

    5.Relay Box

    The relay box is located at the top of the cabinet and is optional. The small room is used to install special devices such as instruments, relays, and motor units.

    6.Circuit Breaker Room: A circuit breaker (Sf6 or vacuum) can beplaced below theload switch.

    △Pressure release

    1.The upper pressure release

    It is used to release the gas pressure generated in the busbar and load switch room during internal arc faults.

    2.The pressure relief below

    It is used to release the gas pressure generated in the cable compartment during internal arc faults.

    Circuit breaker cabinet width

    mm

    750

    Other cabinet width

    mm

    375/500

    Height

    mm

    1600/1850

    Depth

    mm

    980/900

    Relay box height

    mm

    450

    Product Functions

    This switchgear serves as a primary control and protection device within 12kV power distribution networks. Its core function is to safely connect, carry, and interrupt normal and fault currents in both ring main and radial power supply configurations. Specifically designed for integration into prefabricated substations, it ensures stable and protected power distribution, enhancing the overall safety and manageability of the electrical system.

    Applicable Environment

    The switchgear is designed for indoor installation under specific environmental conditions. The ambient air temperature should range from -15°C to +40°C, with an altitude of up to 1000m (high-altitude models available). It requires controlled humidity: the daily average relative humidity should not exceed 95%, and the monthly average should not exceed 90%. The installation site must not exceed a seismic intensity of 8 degrees and should be free from corrosive or flammable gases, vapors, and significant contamination.

    Product Highlights

    This switchgear stands out due to its advanced features and robust design. Key highlights include its compact size and light weight for easier installation and space efficiency. It ensures user safety and operational simplicity with low operating force and highly reliable mechanical interlocking systems. The maintenance-free SF6 load switch units enhance long-term operational economy. Furthermore, its design and manufacturing fully comply with major international and national standards, including GB, IEC, and DL/T, guaranteeing high quality and global applicability.