S13-M Series Three Phase Oil Immersed Distribution Transformer
Nov 11, 2025
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S13-M Series Three Phase Oil Immersed Distribution Transformer
lron core:
The iron core is made of cold-rolled grain-oriented silicon steel sheets with high magnetic conductivity, with inclined joint laminated structure. Section of the core limbs is of multi-class ladder round, with uniform section with that of yoke.
Winding:
The winding adopts corrugated oil duct with non-dipping process, bound by shrinkable tape; all windings are of concentric coils; taps of HV winding with corresponding tapping voltage shall be led to the tap switch, and the switch shall be installed on the box cover. Power supply must be cut off first when changing the tapping voltage.
Oil tank:
Transformer oil tank is composed of corrugated walls with powder painted surface and reinforced with film. Corrugated cooling fin not only has cooling function, but also has breathing function, the elasticity of corrugated cooling fin make rt adapt to the change of oil volume due to change temperature. So this hermetically sealed transformer does not have oil conservator, which decreases 1h& height of transformer.
The transformer adopts vacuum oil-injection technology during encapsulation that thoroughly removes the moisture from transformer, and keeps the transformer oil from contacting the air. This is technology also avoid insulation performance reduction or oil aging due to entering of oxygen or moisture, it improves operation reliability of transformer.
Three Phase Oil filled Transformer Feature
The Iron Core is Made of Cold-Rolled Grain-Oriented Silicon Steel Sheets With High Magnetic Conductivity, With Inclined Joint Laminated Structure
The Winding Adopts Corrugated Oil Duct With Non-Dipping Process, Bound by Shrinkable Tape; All Windings Are of Concentric Coils
Transformer Oil Tank is Composed Of Corrugated Walls With Powder Painted Surface And Reinforced With Film; This Hermetically Sealed Transformer Does Not Have Oil Conservator, Which Decreases 1 H& Height Of Transformer;The Transformer Adopts Vacuum Oil-Injection Technology During Encapsulation That Thoroughly Removes The Moisture From Transformer, Avoid Insulation Performance Reduction Or Oil Aging Due To Entering Of Oxygen Or Moisture, It Improves Operation Reliability Of Transformer
Model
Three Phase Oil Type Transformer Technical Parameters
| Rated Capacity | Voltage Combination | Vector Group | No-load Loss | Load Loss | No-load Current | Impedance Voltage | Exterior Size | Total Weight | ||
| (kVA) | High voltage (kV) |
Tap range | Low voltage (kV) |
(W) | (75℃)(W) | (%) | (%) | (L*W*H) | (kg) | |
| 800 | 35 38.5 |
±5% or ±2*2.5% |
3.15 6.3 10.5 |
Yd11 | 1.23 | 9.90 | 1.0 | 6.5 | 2140*1320*2120 | 3040 |
| 1000 | 1.44 | 12.15 | 1.0 | 2400*1330*2170 | 3410 | |||||
| 1250 | 1.76 | 14.67 | 0.9 | 2470*1350*2190 | 3890 | |||||
| 1600 | 2.12 | 17.55 | 0.8 | 2550*1375*2250 | 4620 | |||||
| 2000 | 2.72 | 19.35 | 0.7 | 2700*1400*2300 | 5345 | |||||
| 2500 | 3.20 | 20.70 | 0.6 | 2520*2300*2365 | 5960 | |||||
Oil Immersed Transformer Key applications
Power distribution: They are a core component in the power grid, stepping down transmission voltage for safe and efficient use in homes and businesses.
Urban and rural grids: Used to provide stable power to different areas, with some models designed to handle short-term overloads common in rural settings.
Industrial facilities: Supply stable power to high-power equipment in industrial complexes and mining operations.
Renewable energy systems: Used in systems like solar and wind farms to condition and distribute power to the grid.
General power and electronic applications: Can be used for various electronic, lighting, and power supply applications.
Why they are used in these applications
- Efficiency: The S13-M series is designed to reduce no-load loss and noise, making it more energy-efficient.
- Durability: The fully sealed structure prevents oxygen and moisture from entering the transformer oil, which extends the life of the insulating oil and the transformer.
- Reliability: They are built to withstand short-circuit forces and have a robust design to ensure reliable operation.
- Environmental performance: They are considered an energy-saving and environmentally friendly product.
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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types of transformer from GNEE
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GNEE Transformer Order specification
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Demander: |
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Fax: |
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Project technical leader: |
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Mailbox: |
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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