Oil-Immersed Transformer
The core matrix of this oil-immersed transformer is precision-fabricated from premium, high-permeability, grain-oriented cold-rolled silicon steel sheets.The high-voltage (HV) windings of this oil-immsersed transformer feature high-purity, oxygen-free copper conductors, arranged in a multi-layer concentric circular configuration. This ensures uniform electrical field distribution, excellent dielectric strength, and optimal thermal dissipation.
- Product Introduction
Oil-Immersed Transformer integrates state-of-the-art manufacturing processes and advanced material technologies to deliver exceptional grid reliability and operational economy.The core matrix of this oil-immersed transformer is precision-fabricated from premium, high-permeability, grain-oriented cold-rolled silicon steel sheets. This advanced core design lowers excitation currents, dramatically suppresses acoustic noise levels, and minimizes core losses.
The high-voltage (HV) windings of this oil-immsersed transformer feature high-purity, oxygen-free copper conductors, arranged in a multi-layer concentric circular configuration. This ensures uniform electrical field distribution, excellent dielectric strength, and optimal thermal dissipation.
Premium Structural Engineering
Premium Structural Engineering
Advanced Short-Circuit Resilience
The transformer utilizes a next-generation insulation structure specifically engineered to optimize dynamic stability, providing superior resistance against axial and radial mechanical forces during sudden short-circuit faults.
Superior Electrode Windings
The high-voltage (HV) windings feature high-purity, oxygen-free copper conductors arranged in a multi-layer concentric circular configuration. This ensures uniform electrical field distribution, excellent dielectric strength, and optimal thermal dissipation.
High-Grade Magnetic Core
The core matrix is precision-fabricated from premium, high-permeability, grain-oriented cold-rolled silicon steel sheets. This advanced core design lowers excitation currents, dramatically suppresses acoustic noise levels, and minimizes core losses.
Anti-Vibration Fastening System
All internal structural fasteners and core clamping mechanisms undergo specialized mechanical locking treatments. This heavy-duty reinforcement guarantees mechanical integrity, preventing component shifting during transport and continuous cyclic operations.
Model Meaning
Model Meaning
① Product model prefix codes
- D: single-phase (single phase transformer)
- S: three-phase (three phase transformer)
- F: air cooling cooling type
- Z: on-load tap changer (with on-load voltage regulation)
② Energy efficiency level code
③ Special structure & construction code
- M: fully sealed type
- R: wound core transformer
④ Rated capacity (kVA)
⑤ Rated voltage level (kV)
⑥ Special ambient environment code
- GY: high altitude plateau type
- WF: anti-corrosion type
- TA: dry tropical climate
- TH: hot & humid tropical climate
Operating Conditions
Operating Conditions
1. Standard Operational Conditions (Normal Usage)
The standard equipment configuration is designed for reliable grid deployment under the following environmental parameters:
Maximum Operational Altitude: less than 1,000 meters above sea level.
Ambient Temperature Profile:
Maximum Peak Temperature:+40°C
Maximum Hottest Monthly Average: +30°C
Maximum Annual Average: +20°C
Minimum Outdoor Base Temperature: -25°C
2. Extreme Climate Conditions (Special Usage)
For projects located in geographical zones prone to severe winter climates, the system can be customized to withstand the following special parameters:
Maximum Operational Altitude: less than 1,000 meters above sea level.
Ambient Temperature Profile:
Maximum Peak Temperature: +40°C
Minimum Extreme Low Temperature:-45°C
📌 Engineering Note for Custom Procurement
Applications requiring extreme climate ratings (down to -45℃ )demand specialized low-temperature transformer oils, specific sealing gasket compounds, and modified structural materials. Please explicitly detail these requirements with our technical team during the quotation and ordering process to ensure proper factory configuration.
Outline and Mounting Dimensions
10kV S18 Series Oil-Immersed Transformer
Rated capacity (k) | Voltage combination and tapping range(kV) | Connection group Symbol | No- load loss (W) | Load loss (W) |
No- load current (%) | Short- circuit impedance (%) | Weight (kg) | Dimension (mm) (L×W×H) | Mounting dimension | ||||
High voltage (kV) | High voltage tap range (%) | Low voltage (kV) | Machine weight | Oil weight | Total weight | ||||||||
| 5 | 6 6.3 10 10.5 11 | ±5 ±3×2.5 | 2×(0.22~0.24) or 0.22~0.24 | li0 li6 | 30 | 130 | 1.2 | 3 | 75 | 30 | 120 | 420×390×870 | 300/300 |
| 10 | 45 | 235 | 1.1 | 85 | 30 | 135 | 420×390×940 | 300/300 | |||||
| 16 | 55 | 330 | 1 | 105 | 35 | 170 | 430×480×960 | 300/350 | |||||
| 20 | 65 | 385 | 0.9 | 120 | 40 | 190 | 440×500×970 | 300/350 | |||||
| 30 | 80 | 560 | 0.8 | 145 | 45 | 220 | 560×500×980 | 300/350 | |||||
| 40 | 100 | 700 | 0.8 | 3.5 | 165 | 50 | 250 | 600×520×990 | 350/350 | ||||
| 50 | 120 | 855 | 0.7 | 185 | 55 | 290 | 680×600×1000 | 350/350 | |||||
| 63 | 145 | 1020 | 0.6 | 205 | 65 | 330 | 730×640×1030 | 400/400 | |||||
| 80 | 160 | 1260 | 0.6 | 230 | 70 | 380 | 820×730×1060 | 400/400 | |||||
| 100 | 190 | 1485 | 0.6 | 245 | 75 | 400 | 850×760×1080 | 400/400 | |||||
| 125 | 230 | 1755 | 0.5 | 270 | 90 | 470 | 920×800×1100 | 400/400 | |||||
| 160 | 290 | 2130 | 0.5 | 330 | 105 | 560 | 1010×900×1120 | 450/450 | |||||
Technical Notes & Specification Parameters
Custom Low-Voltage Configurations: A secondary low-voltage rating of 0.69 kV can be engineered and provided upon request to match specific industrial, mining, or specialized power distribution requirements.
Loss Reference Metrics: Value metrics delineated above a slash (/) designate the standardized no-load and load loss parameters optimized specifically for Dyn11 or Yzn11 vector group connection configurations.
Voltage Regulation & System Frequency:
High-Voltage Tap-Changer Range:: ±5% or ±2×2.5% (multi-step off-circuit tap adjustment for precise grid matching).
Rated Operational Frequency:50Hz(Note: Custom 60Hz engineering configurations are also available upon request).
Other series also available:
Application
Our series of Oil-Immersed Transformer is engineered for versatile deployment across utility, industrial, and renewable energy sectors, delivering high-capacity voltage regulation under demanding grid conditions.
Primary Application Scenarios
Utility & Distribution Substations: Serving as the foundational core asset within regional and industrial substations, these units perform critical voltage step-down or step-up regulation to ensure grid stability and seamless power distribution.
High-Rise & Commercial Complexes: Stationed within dedicated, isolated substation bays or peripheral ground enclosures, these transformers reduce primary distribution voltages down to low-voltage configurations 0.4kV or 0.69 kV to reliably feed individual floors, HVAC networks, and facility infrastructure.
Mission-Critical Data Centers: Delivering exceptional dielectric strength and steady thermal performance, these units provide continuous, clean power conversion to support high-density server racks, enterprise storage arrays, and cooling infrastructure.
Renewable Energy Generation (Wind & Solar PV): Positioned at the collection grid level of wind farms and utility-scale photovoltaic power stations, these transformers step up fluctuating renewable generation voltages to standard medium- or high-voltage levels for efficient, long-distance grid integration.
Environmental & Structural Suitability
Heavy-Duty & High-Voltage Demands: Perfectly suited for heavy industrial applications requiring high overload capacities and robust electrical endurance under continuous cyclic loads.
Rugged Outdoor Performance: Featuring advanced hermetic sealing and superior environmental resilience, these transformers thrive in harsh outdoor settings when paired with standard, code-compliant fire suppression barriers and oil-containment mitigation infrastructure.
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