Product Overview
The 110kV oil immersed power transformer adopts high quality grain oriented silicon steel sheets, oxygen free copper windings, and a fully sealed oil tank structure. Manufactured using advanced vacuum oil filling and rigorous insulation processes, it boasts advantages such as low loss, low noise, high reliability, and long lifespan. It is a core piece of equipment for regional power grids, renewable energy aggregation, and large scale industrial power supply. Suitable for 110kV voltage level transmission and distribution systems, this power transformer can achieve 110kV/35kV/10kV voltage conversion and stable power transmission. It is widely used in substations, renewable energy plants, chemical and metallurgical plants, data centers, urban power grid hubs, and other locations with extremely high requirements for power supply safety and continuity. The product strictly complies with international and national authoritative standards such as IEC, GB, ANSI, IEEE, and JIS, meets Level 1 energy efficiency requirements, and has passed a full set of type tests and factory testing certifications.
Product Features
|
Characteristic |
Product Technology Advantages |
|
Low loss and high energy efficiency |
By employing high permeability silicon steel sheets and optimized magnetic circuit design, the no load loss and load loss are significantly better than the national standard, achieving the first level energy efficiency level. |
|
Strong short circuit resistance |
The windings are tightly secured and reliably supported, capable of withstanding sudden short circuit impacts in the system. They possess high mechanical strength and pose no risk of deformation or displacement. |
|
Excellent insulation properties |
Employing high insulation strength transformer oil and a multi stage insulation structure, it features low partial discharge, long insulation life, and safe and stable operation. |
|
Strong heat dissipation performance |
Equipped with a high efficiency heatsink, supporting multiple cooling methods such as ONAN/ONAF/OFAF, it can meet the requirements of long term full load operation and short term overload operation. |
|
Fully sealed and maintenance free |
The use of corrugated oil tanks or capsule type oil conservators isolates the oil from air and moisture, slows down oil aging, and extends maintenance intervals. |
|
Comprehensive protection configuration |
Standard configuration includes gas relays, pressure relief valves, thermometers, oil level gauges, and other protective devices to comprehensively ensure safe equipment operation. |
Technical Specifications
|
Parameter |
Project |
Typical values / range |
|
Basic parameters |
Rated voltage (high voltage side) |
110kV |
|
Rated voltage (low voltage side) |
35kV,10.5kV,10kV |
|
|
Rated frequency |
50Hz / 60Hz |
|
|
Number of phases |
Three phase |
|
|
Rated capacity (kVA) |
10000,16000,20000,25000,31500,40000,50000,63000,90000,120000 |
|
|
Cooling method |
ONAN (self cooled), ONAF (air cooled), OFAF (forced oil circulation air cooled) |
|
|
Connection and tap |
Link Group |
YNd11,YNynd11 |
|
Tap method |
Off load voltage regulation / On load voltage regulation |
|
|
Tap range |
±2×2.5%,±4×2.5%,±8×1.25% |
|
|
Impedance and loss |
short circuit impedance |
8%–18% (customized according to capacity and system requirements) |
|
Applicable Standards |
GB 1094,GB/T 6451,IEC 60076,ANSI,IEEE,JIS |
|
|
Environment and Protection |
insulating oil |
25# and 45# transformer oil |
|
Operating ambient temperature |
30℃～+45℃ |
|
|
altitude |
≤1000m (High altitude version available upon request) |
|
|
Temperature rise limit |
Oil top temperature rise ≤55K, average winding temperature rise ≤65K |
Oil Immersed Transformer FAQ
1. What is the difference between oil immersed and dry type transformers?
Oil immersed uses mineral oil for cooling and insulation. It costs less, handles higher overloads, and lasts longer outdoors. Dry type is maintenance‑free and fire‑safe indoors.
2. Where can I install an oil immersed transformer? Do I need fire protection?
Typically outdoors – substations, industrial plants, solar farms. Indoors requires a fire‑rated vault or oil containment pit due to flammability.
3. What maintenance does an oil immersed transformer require?
Periodic oil testing (dielectric strength, moisture, dissolved gases), filter regeneration, and inspection of bushings, gaskets, and cooling fans. With proper care, service life exceeds 30 years.
Hot Tags: 110 kv power transformer, China 110 kv power transformer manufacturers, suppliers, factory, air cooled power transformer, furnace power transformer, medium voltage power transformer, oil immersed power transformer, renewable energy substation transformer, vacuum pressure impregnated transformer
