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DingzhouAmerican-style substation

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.

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DingzhouBox-type substation

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Product Description

　　 Product Definition

　　The ZGS11-□-12/0.4 series prefabricated American-style pad-mounted substation, often referred to as an “American transformer,” “American-style 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.

　　 Main Technical Parameters of the Product

Serial Number	Project	Unit	Parameters
1	Rated voltage	kilovolt	10/0.4 (high voltage/low voltage)
2	Maximum operating voltage	kilovolt	12 (High-Voltage Side)
3	Rated frequency	Hertz	50
4	Rated capacity	kVA	150-1600
5	1-minute power-frequency withstand voltage	kilovolt	35
6	Lightning Impulse Voltage	kilovolt	75
7	Cooling method	\	Oil-immersed, self-cooled
8	Breaking current of high-voltage back-side fuse	kA	50
9	Breaking current of plug-in fuses	kA	2.5
10	Ambient temperature	degrees Celsius	-35~+40
11	Sequential Warming of Coils	k	65
12	No-load voltage regulation	\	±5% or ±2 × 2.5%
13	Noise Level	database	50
14	Protection Level	\	IP43

　　 Selling Points and Advantages

　　1. Compact structure and small footprint—only about 1/3 to 1.5 times that of a domestically produced European-style pad-mounted substation of the same capacity—significantly reducing the required land area.

　　2. Fully sealed and fully insulated design eliminates the need for clearance distances, providing reliable protection for personal safety.

　　3. High-voltage wiring can be used for both ring networks and terminal applications, offering flexible power supply configurations and high reliability.

　　4. Outstanding transformer performance: low losses, low noise, and low temperature rise; strong overload capability, excellent short-circuit resistance, and high impact withstand capability.

　　5. Meets various low-voltage feeder requirements; options can be selected based on the scheme, or a custom design can be developed.

　　6. The cable terminations are available in two types: a 200 A elbow-type plug and a 600 A “T”-type fixed cable connector. Both can be equipped with fully insulated zinc oxide surge arresters. The 200 A cable termination allows for load-break connection and disconnection and can also function as an isolating switch.

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