Three phase 2000kva oil-immersed transformer
Introduction of 2000kVA Oil-Immersed Transformers
Core Parameters and Performance Indicators
Rated Capacity and Voltage
Rated capacity: 2000kVA, suitable for medium-to-large industrial facilities, commercial buildings, and renewable energy generation scenarios.
Typical voltage configuration: High-voltage side 10kV/low-voltage side 0.4kV, supporting ±5% or ±2×2.5% no-load tap changers to accommodate grid voltage fluctuations.
Loss and Efficiency
No-load loss: As low as 1,225W for S20 series, approximately 30% lower than S11 series, primarily due to high-permeability silicon steel core materials.
Load loss: Approximately 14,640W for 2000kVA models, utilizing oxygen-free copper windings to reduce resistive losses.
Energy efficiency grade: Compliant with GB20052 Grade II standards, reducing total losses by 25% compared to traditional models, with annual electricity savings of tens of thousands of kWh.
Impedance and Overload Capacity
Short-circuit impedance typically ranges from 4.5% to 6%, ensuring current-limiting capability during faults.
Short-term overload capacity: 1.3× rated capacity for 120 minutes or 1.6× for 45 minutes, meeting sudden load demands.
2000kva oil-filled transformer Technical Specifications
| Rated Power | 2000 kVA | |
| Rating Primary Voltage | 2.4 - 34.5kV | |
| Secondary Voltage | 480/277V 400/230V 380/220V Customized |
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| Frequency | 50/60Hz | |
| Vector Group | Dyn11, Yyn0, Dyn5 | |
| Winding Material | Aluminum/Copper | |
| Efficiency | As IEEE, Doe 2016, CAS Std or Customized | |
| Impedance Voltage | Nominal 2% or Customized 1.1 - 5.75% | |
| Altitude | ≤1,000m or Customized | |
| Color | ANSI 70 Light gray/Munsell 7GY3.29/1.5 or customized, etc | |
| Tank material | Mild Steel, 304 Stainless Steel | |
| Insulating Oil Weight | 820 kg | |
| Total Weight | 4750 kg | |
| Outline Dimensions(L×W×H)in. | 2600 × 1650 × 2400(mm) | |
Structural Design and Technical Features
Fully Sealed Corrugated Tank
Adopts corrugated fins for elastic compensation of oil volume changes, enabling maintenance-free operation and virtually eliminating oil leakage.
Tank pressure resistance: 50kPa for 5 minutes without deformation, suitable for harsh environments.
Cooling and Insulation System
Natural cooling (ONAN) or forced-air cooling (ONAF) designs ensure oil temperature rise does not exceed 60K.
Insulation grade: F-class (155℃), utilizing heat-resistant transformer oil and paperboard composite insulation, with partial discharge ≤5pC.
Protection and Monitoring Devices
Equipped with gas relays, pressure relief valves, thermometers, and oil level indicators for multi-layer protection.
Optional smart monitoring modules enable real-time cloud uploads of oil temperature, load data, etc.
2000kva oil type transformer Application and Selection Guidelines
Typical Application Fields
Industrial manufacturing: Continuous production industries like steel and chemicals requiring high-reliability power supply.
Renewable energy generation: Step-up systems for wind and photovoltaic power plants, matching inverter outputs.
Commercial buildings: Grade I load supply for large shopping malls, data centers, etc.
Key Selection Factors
Load characteristics: Prioritize S20 series for fluctuating loads to minimize no-load losses.
Environmental conditions: Derate capacity by ~10% per 1,000m elevation increase in high-altitude regions.
Energy efficiency requirements: Grade II models cost 5%–10% more initially but recoup the difference within 5 years.
Three phase 2000kva oil-immersed transformer Price
Basic models (e.g., S11-M-2000/10): Approximately RMB 88,000–128,000, suitable for general-purpose loads.
High-efficiency models (e.g., S20-M-2000/10-NX2): Approximately RMB 185,000–204,000, ideal for energy-sensitive projects.
Custom models (e.g., amorphous alloy cores): 20%–30% premium, reducing no-load losses by an additional 60%.
Maintenance and Fault Handling Guide
Routine Inspection Items
Oil level and quality: Monthly checks of oil level gauges; oil transparency ≥70%, water content ≤20ppm.
Temperature monitoring: Top oil temperature ≤85℃, temperature rise limit 60K.
Sound diagnosis: Normal operation produces uniform "humming"; abnormal noises may indicate winding looseness or core grounding issues.
Common Fault Solutions
Oil leakage: Tighten bolts or replace oil-resistant rubber seals; conduct sealing tests post-repair.
Excessive oil temperature: Inspect for radiator blockages; clean fins if necessary.
Light gas alarm: Immediately analyze gas samples; reset relays for air presence; power down for inspection if combustible gases are detected.
company profile
GNEE TRANSFORMER has strong production capacity and an efficient marketing team.
Our transformer products include 500kV, 400kV, 330kV, 220kV, and 110kV ultra-high voltage transformers, various dry-type transformers/oil immersed transformers/amorphous alloy transformers of 35kV and below, new energy transformers, and prefabricated substations,
Export series: single-phase transformer, three-phase transformer, cylindrical transformer, isolation transformer, control transformer, voltage regulator and other products, And various specifications of special transformers such as grounding transformers, arc suppression coils, Bitcoin transformers, prefabricated cabins, reactors, electric furnace transformers, rectifier transformers, mining transformers, marine transformers, etc.
GNEE TRANSFORMER has successively passed ISO9001, ISO14001, ISO45001, SA8000 system certification. At the same time, 10kV and 35KV level distribution transformers and box type substations have obtained interna- tional Electrotechnical Commission IEC certification, US UL certification, German TUV certification, EU CE certification, Dutch KEMA certification, and GOST certification. Our product sales cover the global market, including 72 countries and regions such as the United States, Europe, Canada, Mexico, etc.
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Transformer type selection |
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□Dry transformer {□SC(B) Epoxy resin □SC(B) Non-encapsulated} □American Box(ZGS) {□Terminal type(-Z-) □Ring network type(-H-)} □European Box change(YBM){□ Dry change □Oil change} |
□ Oil-immersed transformer{□ Fully sealed(-M-) □Oil-bearing pillow} □Amorphous alloy transformer{□Dry amorphous □ Oil amorphous} □ Special transformer{Rectifier, Furnace, Mine, Etc} |
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Transformer basic data selection
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Country of use: |
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Phase number: |
□Three-phase(S conventional) □ Monophase □Other( ) |
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Frequency: |
□50Hz(conventional) □60Hz □ Other( ) |
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Transformer oil: |
□#25(conventional) □#45(minimum temperature below-25℃) |
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Rated capacity: |
□( )kVA Conditions of use □Outdoor type □Indoor type |
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Altitude: |
□Less than 1000m(conventional) □1000-2000m □3000m以上 over |
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Rated voltage(High voltage) |
□6kV □10kV □20kV □35kV □66kV □110kV □220kV □Other( ) |
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Rated voltage(Low pressure) |
□0.4kV □0.66kV □10kV □10.5kV □35kV □其他 Other( ) |
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Connected group |
□Dyn11(conventional) □Yyn0 □YNd11 □li0(Single-phase) □Other( ) |
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Impedance(%): |
□4% □4.5% □5.5% □6% □6.5% □7.5% □8% □Other( ) |
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Voltage regulation mode |
□Voltage regulation without excitation(conventional) □On-load voltage regulation(Z) |
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Voltage regulation range |
□±2*2.5% □±5% □±3*2.5% □Other( ) |
Transformer accessory selection
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□Fan □Temperature control{□ Common □With 485 computer interface} □Dry case{□ Ordinary steel sheet □Aluminum alloy » Stainless steel} □Protection level of dry case(□IP20(Conventional) □IP( )} □Dry case height requirements{□None □Requirements[ ]} □ Cable out mode of the dry variable shell {□ Up-and-out □ Up-and-down □Down-in/DOWN-out □Down-in/UP-out □Down-in/DOWN-out □Down-in/ side-out [□Left □ Right-out]} |
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Note: 1. (Dry change requirements s 100kVA transformer does not include fans, such as fans, need to be charged 2. (Oil changes <630kVA transformer does not include temperature control, gas relay, if necessary, need to increase the fee) |
Other special requirements(additional charges apply below)
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Dry transformer |
□Shell and bottom plate{□Ordinary □Fully sealed} □Travel switch □Magnetic lo □Zero sequence transformer □Copper bar to the low voltage cabinet □Protective mesh □Lighting □100kVA or less Fan □Shock absorber |
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Oil-immersed transformer |
□No.45 oil for non-low temperature areas □Designated brand on-load voltage regulator □400kVA and below low voltage outlet OABC phase with wiring terminals □630kVA or below requires temperature control □800kVA or below Low voltage outlet phase 0 requires wiring terminals □630kVA and below must be equipped with gas relay |
GNEE TRANSFORMER Industrial Layout
Asia:China, Philippines, Cambodia, Malaysia, Pakistan, Indonesia, Vietnam, Mongolia, Japan, Taiwan Province, Bangladesh, Sri Lanka, Lebanon, Saudi Arabia, Turkey, Armenia, Saudi Arabia, Saudi Arabia, Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan
Africa:Egypt, Ethiopia, Angola, Botswana, Burundi, Cape Verde, Congo, Guinea, Ghana, Gabon, Zimbabwe, Cameroon, Kenya, Rwanda, Malawi, Mauritius, Mauritania, Mozambique, South Africa, Nigeria, Somalia, Chad, Central Africa
North America: Aruba, Panama, Dominican Republic, Costa Rica, Honduras, Caribbean region,Canada, United States, Mexico, El Salvador, Guatemala, Jamaica
Europe: Bulgaria, North Macedonia, Finland, Norway, Ukraine, Greece, Hungary, Italy, United Kingdom
South America: Argentina, Paraguay, Ecuador, Colombia, Guyana, Mexico, Uruguay, Chile
Middle East: The Middle East region
Oceania: Australia, Papua New Guinea. Fiji