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YB series prefabricated substations are products produced in compliance with the standards of GB/T17467 "High Voltage/Low Voltage Prefabricated Substations". This product is composed of four parts: housing, transformer, and high-voltage/low-voltage switchgear, and can penetrate deep into the load center. It has the characteristics of small size, beautiful appearance, safety and reliability, and easy installation. It is suitable for outdoor places such as residential areas, factories and mining enterprises, hotels, hospitals, parks, stations, oil fields, airports and temporary facilities.
| serial number | project | unit | High voltage side | Transformer | Low voltage side |
|---|---|---|---|---|---|
| 1 | Rated voltage | kV | 10 | 10/0.4 | 0.4 |
| 2 | Maximum highest operating voltage | kV | 12 | 0.4 | |
| 3 | Rated Capacity | kVA | 50~1000 | ||
| 4 | Rated current | A | ≤630 | ≤1600 | |
| 5 | Rated short circuit breaking current | KA | 52 | 30, 50 | |
| 6 | Rated short-time withstand current | KA/s | 20/2 | 30/1 | |
| 7 | Rated short circuit making current | KA | 50 | 63, 105 | |
| 8 | Rated peak withstand current | KA/s | 50/0.3 | 50/0.3 | |
| 9 | Power frequency withstand voltage | kV |
Isolation fracture: 48 Phase to phase and relative to ground: 42 |
35/28 | 2.5/2.0 |
| 10 | noise level | dB | Oil change ≤55, dry change ≤65 | ||
| 11 | Number of circuits | Unit | 3 | 1 | ≤22 |
| 12 | Protection level | IP34D |
