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Box-type substation
YB-12 Series Outdoor Combined Box-type Substation
The YB series prefabricated substation integrates high-voltage electrical equipment, transformers, and low-voltage electrical equipment into a compact, complete power distribution unit. It is designed for use in locations such as urban high-rise buildings, mines, oilfields, and temporary construction sites, serving to receive and distribute electrical energy within power distribution systems.
Product Details
The YB series pre-assembled substation integrates high-voltage equipment, transformers, and low-voltage equipment into a compact, complete power distribution unit. It is designed for applications such as urban high-rise buildings, mines, oilfields, and temporary construction sites, serving to receive and distribute electrical energy within power distribution systems.
The YB series features a highly integrated design, compact size, safe and reliable operation, ease of maintenance, and portability. Compared to conventional civil-engineered substations, a box-type substation of the same capacity typically occupies only one-tenth to one-fifteenth of the footprint, significantly reducing design and construction workloads as well as overall construction costs. Suitable for use in ring-main, dual-power, or radial/terminal distribution systems, this product represents a modern, integrated solution for the construction and renovation of substations in both urban and rural areas.
The product complies with the national standard GB/T 17467-1998, "High-voltage/low-voltage pre-fabricated substation."
Standard Specifications
SPECIFICATIONS
| Name | Unit | High - voltageequipment | Transformer | Low - voltageequipment |
|---|---|---|---|---|
| Rated voltage | kV | 10 | 10/0.4 | 0.4 |
| Rated current | A | 630 | 50 | 100~2500 |
| Rated frequency | Hz | 50 | 50 | |
| Rated capacity | kVA | 100~1250 | ||
| Rated peak withstandcurrent | kA | 20/4S | 30/1S | |
| Rated dynamic stablecurrent (peak) | kA | 50 | 63 | |
| Rated short - circuit makingcurrent (peak) | kA | 50 | 15~30 | |
| Rated short - circuitbreaking current | kA | 31.5(Fuse) | ||
| Power frequency withstandvoltage for 1 minute | A | 630 | ||
| Lightning impulse withstandvoltage | kV | Relative to ground:42 between phases;48 between breaks | 35/28(5min) | 20/2.5 |
| Wohagjng impulse withstand | Relative to ground:75 between phases;85 between breaks | 75 | ||
| Enclosure protection class | IP23 | IP23 | IP23 | |
| Noise | dB | 1~6 | Oil - immersed type ≤ 55;Dry - type ≤ 65 | |
| Number of circuits | Number | 2 | 4~30 | |
| Maximum low - voltage reactivepower compensation power | kvar | 300 |
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