110-132kV Oil-Immersed Distribution Transformer Overview
The 110-132kV Oil-Immersed Distribution Transformer offers a high-voltage distribution solution for efficient transmission and distribution of electricity to regional substations, industrial parks, and large transportation hubs. Featuring standardized construction Types 10, 11, and 13, it uses a bell-type tank with corrugated walls for enhanced strength and aesthetic appeal, along with a D-type yoke and 45° miter joints to ensure durability during transportation. The core is crafted from high-quality silicon steel, arranged in multi-stage ladder stacks to minimize no-load loss and operational noise.
This transformer incorporates rigorously braced internal and external coils and robust paper tubes, granting it high-certified short-circuit tolerance. Advanced manufacturing techniques such as cold-pressure welding and precise coil group assembly enhance its robustness and reliability. Meeting GB, JB/T, and IEC standards, the oil-type power transformer delivers energy-saving performance exceeding benchmarks like GB 6451-2008, with 15–20% lower no-load loss and 5% lower load loss, making it an ideal choice for modern high-performance networks.
- High voltage rating: 110kV or 121kV (±2×2.5% tap range), medium voltage rating: 36/37/38.5kV.
- Low voltage output options: 6.3, 6.6, 10.5, or 21kV, enabling flexible downstream connections.
- Available in sizes ranging from 6300kVA to 63000kVA, as single three-phase units.
- Features self-cooling (ONAN) and maintenance-free air-cooling options for diverse operational requirements.
Key Benefits and Advantages of 110-132kV Oil-Immersed Distribution Transformers
Certified Short Circuit Strength
National certifications verify its ability to endure high electrodynamic forces, ensuring grid stability and resilience.
Energy-Saving Performance
Achieves 15–20% lower no-load losses and 5% reduced load losses, helping reduce operational costs and improve energy efficiency.
Low Operational Noise
Multi-stage core construction and 45° miter joints maintain sound levels within acceptable environmental limits.
Reliable 24/7 Service
Robust coil bracing and vacuum oil impregnation support consistent and uninterrupted performance, even at peak loads.
Standardized Options
Types 10, 11, and 13 cover a variety of cooling and structural configurations, allowing seamless integration into existing setups.
Minimal Maintenance
The bell-type sealed tank design minimizes oil aging and reduces inspection demands through improved self-cooling efficiency.
Applications & Industries
Oilfield & Mining
Provides reliable power solutions for extraction, pumping, and processing operations in rugged and remote environments.
Industrial Parks
Offers centralized power distribution for multiple industrial zones, maintaining voltage stability despite variable loads.
Transportation Hubs
Ensures uninterrupted power delivery essential for railway stations, airports, and ports.
Substations & Power Plants
Acts as a backbone transformer for efficient transmission and distribution with minimal maintenance requirements.
Technical Specs & Data
110-132kV three-phase oil-immersed distribution transformers are available with customizable voltage combinations and impedance ratings tailored to project requirements.
| Rated Capacity (kVA) | High Voltage (kV) | Tap Range | Medium Voltage (kV) | Low Voltage (kV) | Connection | No-load Loss (kW) | Load Loss (kW) | No-load Current (%) | Impedance (%) |
|---|---|---|---|---|---|---|---|---|---|
| 6300 | 110;121 | ±2×2.5% | 36;37;38.5 | 6.3;6.6;10.5;21 | YNyn0d11 | 8.9 | 44 | 0.66 | See note |
| 8000 | 10.6 | 53 | 0.62 | See note | |||||
| 10000 | 12.6 | 63 | 0.59 | See note | |||||
| 12500 | 14.7 | 74 | 0.56 | See note | |||||
| 16000 | 17.9 | 90 | 0.53 | See note | |||||
| 20000 | 21.1 | 106 | 0.52 | See note | |||||
| 25000 | 24.6 | 126 | 0.48 | See note | |||||
| 31500 | 29.4 | 149 | 0.48 | See note | |||||
| 40000 | 34.8 | 179 | 0.44 | See note | |||||
| 50000 | 41.6 | 213 | 0.44 | See note | |||||
| 63000 | 49.2 | 256 | 0.40 | See note |
Impedance specifications include: Step-up High-Medium 17.5–18.5%, High-Low 10.5%, Medium-Low 6.5%. Step-down High-Medium 10.5%, High-Low 18–19%, Medium-Low 6.5%. For customized specifications and detailed engineering diagrams, please contact us directly.
Why Buy a 110-132kV Oil-Immersed Distribution Transformer
Proven High-Voltage Expertise
Years of experience in designing 110kV and 132kV transformers, backed by rigorous certifications and proven field performance.
Rigorous Quality Assurance
Each transformer undergoes comprehensive tests, including partial discharge, insulation, and temperature rise, adhering to IEC 60076 standards.
Economical Pricing
Direct factory supply allows us to offer competitive pricing for large-scale infrastructure projects worldwide.
Worldwide Delivery
Standard lead times of 10–14 weeks ensure timely processing and delivery. Logistical and on-site installation support is available globally.
Certifications & Standards
IEC 60076
ISO 9001
JB/T 3837
CE
How This 110-132kV Transformer Fits Your Project
Tailored guidance for EPC companies, utilities, and industrial users selecting robust high-voltage transformers.
Application-Specific Flexibility
In Regional Substations, the 31500–63000kVA units serve as primary step-down units for seamless transmission-to-distribution transition. In Oilfields and Mining Operations, rugged designs handle heavy loads and extreme environmental conditions. Transportation Hubs leverage low-noise, high-efficiency traits for reliable power supply critical to operational infrastructure.
Choosing Between Type 10, 11, and 13
Type 10 offers standard self-cooling, Type 11 provides air cooling during intermittent peak loads, and Type 13 accommodates non-lift structures for convenient maintenance. Choose based on site requirements.
Ideal Installation Standards
Suitable for locations below 1000m elevation with temperatures ranging from -25°C to +40°C and minimal seismic activity. Installation involves laying a reinforced foundation with oil containment systems and partial tank disassembly options for convenient inspections.
Frequently Asked Questions
What does 132kV mean?
132kV (132 kilovolts) is the rated high-voltage level of the transformer’s primary winding, indicating it is designed to connect to a 132,000-volt grid. It is a common transmission voltage in many regions.
What is 132kV to 11kV transformer?
A 132kV to 11kV transformer steps down high transmission voltage to a medium distribution voltage of 11,000 volts. Our 110-132kV series can be configured with 11kV as the low-voltage output — specify when ordering.
How many amps does a 110v transformer use?
For a 110V transformer, current depends on power (Amps = VA / Voltage). For example, a 1 kVA 110V transformer draws about 9.1 amps at full load on the primary. Note that a 110kV transformer operates at thousands of volts, significantly different from 110V systems.
What is kV on a transformer?
kV stands for kilovolt, a unit of voltage equal to 1,000 volts. The kV rating on a transformer indicates the nominal operating voltage of a winding. For instance, a 110kV transformer has a primary winding rated for 110,000 volts.
