Oil-Immersed Transformer
Oil-Immersed Transformer integrates state-of-the-art manufacturing processes and advanced material technologies to deliver exceptional grid reliability and operational economy.
- Product Introduction
Oil-Immersed Transformer integrates state-of-the-art manufacturing processes and advanced material technologies to deliver exceptional grid reliability and operational economy. Engineered to meet the stringent demands of modern power networks, these high-efficiency units significantly minimize grid losses while maximizing service life.
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 for Oil-Immersed Transformer 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 for this Oil-Immersed Transformer 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 $60\text{ Hz}$ 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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