


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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