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China YB-12/0.4 Pre-installed Substation - Reliable Suppliers and Factory for Urban and Industrial Power Solutions
Altitude & Temperature
Altitude: ≤1000m
Ambient Temperature: -25°C to +40°C
Ambient Temperature: -25°C to +40°C
Average Temperatures
Max monthly average: +30°C
Max annual average: +20°C
Max annual average: +20°C
Relative Humidity
Daily average: ≤95%
Monthly average: ≤90%
Monthly average: ≤90%
Seismic Level
Horizontal acceleration: 0.4 m/s²
Vertical acceleration: 0.15 m/s²
Vertical acceleration: 0.15 m/s²
Installation Environment Requirement: The installation site should be free from severe shocks, serious pollution, chemical corrosion, conductive dust, and explosion hazards. If your operational conditions exceed these standard specifications, please consult with our technical engineering team for customized solutions.
| 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 ~ 63 kA |
| kA | The combined switch is decided by the fuse. | - | |||
| 5 | Rated Short-time Withstand Current | kA | 16, 20 (4s) | - | 15 (1s) |
| - | 30 (1s) | ||||
| 6 | Rated Peak Withstand Current | kA | 31.5, 50 | - | 30 |
| - | 63 | ||||
| 7 | Power Frequency Withstand Voltage (1min) | kV | Ground & 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 & Phase-to-phase: 60/75 | 60/75 | - |
| Isolating Fracture: 70/85 | - | ||||
| 9 | Protection Rating | - | - | IP23 | - |
| 10 | Noise Level | dB | - | ≤ 55 | - |
| 11 | Applicable Standards | - | GB/T17467 "High-Voltage/Low-Voltage Pre-installed Substation" | ||
| DL/T537 "Technical conditions for Ordering 6-35kV Box-type Substations" | |||||
Q1
What is the rated capacity range for this pre-installed substation?
The transformer capacity ranges from 50 kVA to 1600 kVA, suitable for 6/0.4 kV and 10/0.4 kV power distribution systems across industrial, commercial, and utility sites.
Q2
What standard operating conditions are required for installation?
The equipment is designed for altitudes ≤ 1000m, ambient temperatures between -25°C and +40°C, daily relative humidity ≤ 95%, and horizontal seismic acceleration up to 0.4 m/s².
Q3
Which industry manufacturing standards does the substation comply with?
The product strictly complies with national and industrial specifications, including GB/T17467 (High Voltage/Low Voltage Pre-installed Substation) and DL/T537 (Technical Conditions for Ordering 6-35kV Box-type Substations).
Q4
Can this box-type substation support both oil-immersed and dry-type transformers?
Yes, the substation structure is compatible with both oil-immersed (25/35 kV power frequency withstand) and dry-type (25/28 kV power frequency withstand) transformer configurations.
Q5
What are the enclosure protection level and noise control capabilities?
The transformer compartment features an IP23 protection rating for outdoor dust/water resistance, with operational noise levels maintained at or below 55 dB for quiet performance in urban environments.
Q6
Can customized substations be engineered for harsh or specialized environments?
Yes. If your site involves high altitudes (>1000m), extreme corrosive atmospheres, chemical pollution, or specific switchgear combinations, custom engineered enclosures and components are available upon consultation.