1. High voltage switchgear, transformers, and low-voltage switchgear are integrated into one, with strong completeness:

2. Complete high and low voltage protection, safe and reliable operation, and simple maintenance;

3. Small footprint, low investment, short production cycle, and convenient mobility:

4. Flexible and diverse wiring schemes:

5. Unique structure: The double-layer (composite board) shell with a unique honeycomb structure is firm, insulated and ventilated, beautiful, and has a high level of protection,

The shell materials include stainless steel titanium alloy, aluminum alloy, cold-rolled plate, and color steel plate to choose from:

6. Various styles: universal, villa, compact, etc

7. The high-voltage ring main unit can be equipped with a network automation terminal (FTU) to achieve reliable detection of short circuits and single-phase grounding faults, with the "four remote" function, making it easy to upgrade the distribution network automation.

High voltage side

Intelligent integrated substations generally use a combination of load switches and fuses for high-voltage protection. After one phase of the fuse is blown, the three phases are interlocked and tripped. The load switch can be selected from compressed air, vacuum, sulfur hexafluoride and other types, and can be equipped with an electric operating mechanism to achieve automation upgrade. The fuse is a high-voltage current limiting fuse with an impactor, which has reliable action and large breaking capacity. The main technical parameters are shown in the table below. For transformers above 800kVA, vacuum circuit breakers such as ZN12, ZN28, VS1 can be used for protection.

Low voltage side

The low-voltage side main switch adopts universal or intelligent circuit breakers for selective protection: the outgoing switch adopts a new type of plastic shell switch with small volume, short arcing, and up to 30 circuits. The intelligent automatic tracking reactive power compensation device has two switching modes for users to choose from: contactor and non-contact.

Transformer

Intelligent integrated substations use low loss, oil immersed, fully sealed S9, S10, S11 series transformers, or environmentally friendly dry-type transformers with resin insulation or NOMEX paper insulation. The bottom can be equipped with a small car, and the transformer can be easily accessed.