Longnice box-type substations are factory-assembled distribution units that combine the high-voltage incoming arrangement, the distribution transformer and the low-voltage distribution board inside one weatherproof enclosure. Three families are available: the ZBW combined type, the YB prefabricated type and the ZGS combined type, so transformer capacity, incoming voltage and the low-voltage outgoing scheme can be matched to the project instead of being fixed at the factory.
Configuration
High-voltage unit:Incoming, metering and protection for the medium-voltage side.
Transformer unit:Oil-immersed or dry-type distribution transformer mounted in the same enclosure.
Low-voltage unit:Main incoming, metering, outgoing feeders and reactive power compensation.
Enclosure: Cold-rolled steel enclosure with hinged doors, ventilation louvers and segregated compartments.
Key Features
All-weather protection / Compact & space-saving / High safety & reliability / Low maintenance, long lifespan / Fast installation, plug-and-play / Customizable design available
Typical Applications
English: Power transmission and distribution, industrial manufacturing, construction and real estate, new energy, and municipal infrastructure; also used as photovoltaic and wind supporting equipment and for temporary or mobile power supply.


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