What are the main models of substations?

  There are various models of box-type substations (box substations), which are mainly classified according 

to their structures, functions, and application scenarios. The following are common model types and their

 characteristics:

### I. Classification by Structural Form

1. **European-style Box-type Substations**

   - **Model Examples**: ZBW series (such as ZBW-12/0.4-315KVA), YB series (such as YB-12/0.4-500KVA).

   - **Characteristics**: Adopting a "three-in-one room" structure (high-voltage room, transformer room, 

low-voltage room), suitable for 10kV/0.4kV power distribution systems, supporting ring network or radial 

power supply. They are relatively large in size but fully functional.

   - **Configurations**: In the high-voltage room, switchgears like XGN15 and HXGN17 can be selected. For

 the transformer, oil-immersed types (S11/S13 series) or dry types (SCB10 series) can be chosen.

2. **American-style Box-type Substations**

   - **Model Examples**: GE box-type substation, ZB1—336 type.

   - **Characteristics**: Integrating the transformer, high-voltage load switch, and fuse in the same oil tank, 

with a compact volume (about one-third of that of the European-style box substation), a fully sealed design, 

and supporting live plugging and unplugging operations.

   - **Applications**: Suitable for scenarios with limited space, such as urban streets and industrial parks.

3. **Underground (Landscape-style) Box Substations**

   - **Characteristics**: Some equipment is buried underground, and only the low-voltage room or operation 

panel is retained on the ground. They are aesthetically pleasing and save space, and are suitable for areas with 

high environmental requirements (such as parks and residential areas).

### II. Classification by Function or Application Scenario

1. **Prefabricated Box Substations**

   - **Models**: ZBW type, XWB type.

   - **Characteristics**: With a high degree of prefabrication in the factory, quick on-site installation, and supporting

 standardized configurations (such as high-voltage incoming lines, metering, and reactive power compensation).

2. **Compact Box Substations**

   - **Models**: GE box-type substation, ZB1—336 type.

   - **Characteristics**: Highly integrated in structure, reducing the floor area, and suitable for areas with low load 

density.

3. **Box Substations Dedicated to New Energy**

   - **Applications**: In scenarios such as photovoltaic power generation, wind power generation, and charging piles,

 they need to be adapted to DC input or have special protection functions.

### III. Common Model Naming Rules

The models of box substations usually include the following information:

- **Voltage Level**: For example, ZBW-12/0.4 indicates 12kV on the high-voltage side and 0.4kV on the low-voltage side.

- **Capacity Range**: Such as 315KVA, 1000KVA, covering from 30KVA to 3150KVA.

- **Transformer Type**: SCB10 (dry type), S11 (oil-immersed type), etc.

### IV. Selection Suggestions

When selecting the model of a box substation, the following should be considered:

1. **Capacity Requirements**: Select an appropriate capacity (such as 315KVA, 630KVA) according to the size of 

the load.

2. **Environmental Conditions**: In humid and corrosive environments, select anti-corrosion enclosures; in dusty 

areas, strengthen the dust-proof design.

3. **Function Expansion**: Whether intelligent monitoring, reactive power compensation, or special protection 

functions are required.

In practical applications, comprehensive decisions should be made by combining the electrical design drawings 

and the technical parameters provided by the manufacturer.