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China YB-12/0.4 Pre-installed Substation Suppliers - High Quality European Factory Solutions for Urban Power Distribution
Model and Definitions
Application Conditions
Altitude: ≤1000m; Ambient temperature: -25℃ to +40℃;
Temperature: Maximum monthly average temperature +30℃, maximum annual average temperature +20℃;
Relative Humidity: Daily average not exceeding 95%, monthly average not exceeding 90%;
Seismic level: Horizontal acceleration 0.4m/s², vertical acceleration 0.15m/s²;
The installation site should be free from severe shocks, serious pollution, and chemical corrosion, as well as conductive dust and explosion hazards. If normal usage conditions cannot be met, please consult with our company for solutions.
Technical Parameters
| NO. | Items | Unit | High-voltage Electricity | Transformer | Low-voltage Electricity |
| 1 | Nominal Voltage | kV | 6/10 | 6/0.4, 10/0.4 | 6/0.4, 10/0.4 |
| 2 | Rated Capacity | kVA | 50~1600 | ||
| 3 | Rated Current | A | 200, 400, 630 | 100~3200 | |
| 4 | Rated Short-circuit Breaking Current | A | Load Switch 400-630 | 15~63kA | |
| K | The combined switch is decided by the fuse. | ||||
| 5 | Rated Short-time Withstand Current | K | 16, 20 (4s) | 15 (1s) | |
| 30 (1s) | |||||
| 6 | Rated Peak Withstand Current | K | 31.5, 50 | 30 | |
| 63 | |||||
| 7 | Power Frequency Withstand Voltage (1min) | kV | Ground and Phase-to-phase: 32/42 | 25/35 (Oil immersion) | ≤0.3: 2 |
| Isolating Fracture: 36/48 | 25/28 (Dry) | ＞0.3: 2.5 | |||
| 8 | Lightning Impulse Withstand Voltage (Peak) | kV | Ground and Phase-to-phase: 60/75 | 60/75 | |
| Isolating Fracture: 70/85 | |||||
| 9 | IP Rating | IP23 | |||
| 10 | Noise Level | dB | 55 | ||
| 11 | Standards Complied | GB/T17467 "High Voltage/Low Voltage Pre-installed Substation" | |||
| DL/T537 "Technical conditions for Ordering 6-35kV Box-type Substations" |
Installation Dimensions
Display of Some Products
Frequently Asked Questions (FAQ)
What is the maximum altitude for installing this pre-installed substation?
The substation is designed for installation at altitudes less than or equal to 1000 meters.
What is the ambient operating temperature range?
The operating ambient temperature range is from -25℃ to +40℃, with a maximum monthly average temperature of +30℃ and a maximum annual average temperature of +20℃.
What standards does this substation comply with?
This substation complies with the GB/T17467 "High Voltage/Low Voltage Pre-installed Substation" and DL/T537 "Technical conditions for Ordering 6-35kV Box-type Substations" standards.
What is the rated capacity range of the transformer?
The rated capacity for the transformer ranges from 50 to 1600 kVA.
What are the relative humidity limitations for installation?
The daily average relative humidity should not exceed 95%, and the monthly average relative humidity should not exceed 90%.