1. Product Overview
YB-12 outdoor prefabricated box-type substation (European type) is a compact complete power transformation and distribution device integrating high-voltage switchgear, transformer and low-voltage switchgear. Pre-installed in the factory, it is easy to install on site, widely used in various power distribution scenarios, and efficiently realizes voltage transformation and power distribution.
2. Model Meaning (Model Composition Diagram)
YB - 12 / □ - □
• YB: Prefabricated Box-type Substation (Product Category)
• 12: Rated High-voltage Level (12kV)
• First □: Rated Transformer Capacity (Unit: kVA, such as 500, 1000, etc.)
• Second □: Rated Low-voltage Current (Unit: A, configured on demand)
3. Product Features
• Strong Integrity: Integrates high-voltage switch, transformer and low-voltage switch into one, high integration, no on-site assembly required, high installation efficiency.
• Safe and Reliable: Complete high and low voltage protection, with "five-prevention" function, high shell protection level, dustproof and waterproof, stable operation and simple maintenance.
• Energy-saving and Space-saving: Compact size, covering only 1/10-1/15 of the traditional substation, low investment, short production cycle, and flexible movement.
• Excellent Structure: Honeycomb double-layer composite shell, good heat insulation and heat dissipation performance, shell material can be selected on demand (stainless steel, aluminum alloy, etc.), beautiful and durable.
• Flexible Adaptation: Diverse wiring schemes, can meet 10kV ring network power supply, dual power supply or terminal power supply needs, suitable for multi-scene customization.
4. Application Environment Conditions
No. | Environmental Parameters | Specific Requirements |
1 | Altitude | Regular ≤1000m, high-altitude products can be customized (up to 4000m) |
2 | Ambient Temperature | Regular -25℃~+40℃, customizable -40℃~+45℃ for alpine areas |
3 | Relative Humidity | Daily average ≤95%, monthly average ≤90% |
4 | Installation Site | No fire, explosion, conductive dust, chemical corrosive gas and severe vibration |
5 | Others | Wind pressure ≤700Pa (wind speed ≤34m/s), seismic intensity ≤8 degrees, vertical inclination ≤5° |
5. Application Scenarios
Urban power grid transformation, residential communities, high-rise buildings, industrial and mining enterprises, hotels and shopping malls, airports and railways, oilfields and terminals, highways and temporary power facilities and other indoor and outdoor places.
6. Technical Parameters (Main Parameters of the Same Series)
Parameter Name | Unit | YB-12-500 | YB-12-1000 | YB-12-1500 | YB-12-2000 |
Rated High-voltage Voltage | kV | 12 | 12 | 12 | 12 |
Rated Low-voltage Voltage | kV | 0.4 | 0.4 | 0.4 | 0.4 |
Transformer Capacity | kVA | 500 | 1000 | 1500 | 2000 |
Rated Frequency | Hz | 50 | 50 | 50 | 50 |
High-voltage 1min Power Frequency Withstand Voltage | kV | 42 | 42 | 42 | 42 |
Low-voltage 1min Power Frequency Withstand Voltage | kV | 2.5 | 2.5 | 2.5 | 2.5 |
Protection Level | - | IP33 | IP33 | IP42 | IP42 |
7. Cited Standards
• GB/T 17467-2020 "High/Low Voltage Prefabricated Substations"
• GB/T 1094.1 "Power Transformers - Part 1: General Requirements"
• GB/T 4208 "Degrees of Protection Provided by Enclosures (IP Code)"
• GB/T 11022 "Common Technical Requirements for High-voltage AC Switchgear and Controlgear Standards"
• GB/T 14048.1-2023 "Low-voltage Switchgear and Controlgear - Part 1: General Requirements"
• GB 20052 "Minimum Energy Efficiency Values and Energy Efficiency Levels for Power Transformers"
• DL/T 537-93 "Ordering Technical Conditions for 6-35KV Box-type Substations"
