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China YB-12/0.4 Pre-installed Substation - Reliable Suppliers and Factory for Urban and Industrial Power Solutions
Model and Definitions
Application Conditions
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Altitude: ≤1000m; Ambient temperature: -25℃ to +40℃;
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Temperature: Maximum monthly average temperature +30℃, maximum annual average temperature +20℃; ◇ Relative Humidity: Daily average not exceeding 95%, monthly average not exceeding 90%;
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Seismic level: Horizontal acceleration 0.4m/s², vertical acceleration 0.15m/s²;
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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.
Application Conditions
| 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 Currency | A | 200, 400, 630 | 100~3200 | |
| 4 | Rated Short-circuit Breaking Current | A | Load Switch 400-630 | 15~63kA | |
| K | The combined swtiched 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 | IP23 | ||||
| 10 | db | 55 | |||
| 11 | 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 installation altitude for this equipment?
The maximum installation altitude for this equipment is ≤1000m. If you require installation at higher altitudes, please consult with our company for customized solutions.
What are the ambient temperature and humidity limits for operation?
The ambient temperature range is -25℃ to +40℃, with a maximum monthly average of +30℃ and annual average of +20℃. The daily average relative humidity should not exceed 95%, and the monthly average should not exceed 90%.
What is the rated capacity range for the transformer?
The rated capacity for the transformer ranges from 50 to 1600 kVA.
What standards do these box-type substations comply with?
They comply with the GB/T17467 "High Voltage/Low Voltage Pre-installed Substation" standard and the DL/T537 "Technical conditions for Ordering 6-35kV Box-type Substations" standard.
What environmental conditions should be avoided at the installation site?
The installation site must be free from severe shocks, serious pollution, chemical corrosion, conductive dust, and any explosion hazards.