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The ZGS11-□-12/0.4 series prefabricated American-style pad-mounted substation, commonly referred to as an “American substation,” “American-type pad-mounted substation,” or “combined transformer,” is an outdoor pad-mounted substation in which the transformer core, high-voltage load switch, fuses, and other components are all housed within a single transformer oil tank, while the low-voltage compartment is enclosed in a single, integral outdoor cabinet that is further divided into metering, incoming line, outgoing line, and capacitor compartments, all compactly assembled together.
The 8.7/15–630 kV European-style front connector is suitable for the inlet and outlet cable terminations of ring-main units (for cross-linked power cables). It is bolted to the switchgear’s cable entry/exit bushing bases, the wall bushings of cable distribution boxes, and double-through bushings, and is also applicable to packaged substation equipment.
The 630A European-style rear connector can be connected to a European-style front connector or to another rear connector, thereby providing an extended cable connection circuit (branch). However, it cannot be directly connected to bushing bases or wall bushings. The connector’s tail end can be directly sealed with an insulating plug, or it can be further extended to connect another European-style rear connector or a rear surge arrester.