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Release Time:2025-08-13      Number of clicks:26

Box-type Substation

Model:YBMD-12/24 Underground  box-type  substation

Application:

YBMD-12/24 series underground  box-type  substation is a landscape power supply facility specially designed for municipal administration, which is partially or completely buried. This product effectively solves the contradiction between urban land shortage and urban psoriasis. It occupies little or no land, and the visual effect is very good in harmony with the surrounding environment. It can also be used for advertising and exhibition.

Features:

● Maximum monthly average temperature: +35℃;

● Maximum annual average temperature: +20℃;

● Minimum ambient temperature:-15℃;

● Relative humidity: maximum monthly average: 90%(20℃); Maximum daily average: 95%(20℃);

● Pollution grade: Grade III;

The  outer  casing  is  made  of  anti-corosion  stainless  steel, and the seal is made of high-quality aerospace-grade fluoro rubber seal, which has high temperature resistance, corrosion resistance and no cracking. The high and low voltage incoming and outgoing lines are connected by a unique detachable plug-in terminal, and the connection is in the form of a three-phase warehouse. During installation, the three-phase charged body of the same cable is inserted into the cable connector at the same time, and the connector is filled with insulating liquid heavier than water, thus effectively preventing water seepage, and changing the situation that water can only be soaked in the rain when the interference seal between the plug and the sleeve is made. The whole product is fully sealed, fully insulated and waterproof, and the product can be immersed in water for a short time, with the protection level reaching IP68 and the service life of more than 20 years.

The buried box transformer meets the requirements of national standards such as GB/T17467-1998 "High/Low Voltage Pre-installed Substation" and DLT 537-1993 "Technical Conditions for Ordering 6 ~ 35kV Box Substations", and is used for 6~10KV.

Ring network can supply power to the terminal of radial power grid, which is widely used in urban buildings, living quarters, municipal facilities, mines and oil fields.

Specification:

Project

Unit

Parameter

High voltage side rated voltage

kV

10                       20

High voltage side highest voltage

12                       24

Low voltage side rated voltage

V

400

Transformer capacity

KVA

30-630

Rated frequency

HZ

50                       60

Rated peak withstand current

kA

50

1S short-time withstand current

25

Rated

insulation

level

 High

pressure side

Lightning impulse withstand

10KV

kV

75/85

20KV

125/45

1min

Power frequency tolerance

10KV

42/48

20KV

65/79

 Low

pressure side

Rated voltage

V

60≤UI≤300     300≤UI≤660     660≤UI≤800

Lightning impulse withstand voltage Lightning

2500            6000              8000

1min

Power frequency withstand voltage

2000             2500             3000

transformer

High voltage side highest voltage

kV

6                10               20

Low voltage side rated voltage

60               75              125

1min

Power frequency withstand voltage

25/20            35/28            55/50

Enclosure protection grade

IP

4X

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