750KVA Oil Immersed Distribution Transformer
Nov 06, 2025
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GNEE produced and delivered 4units 750kVA 13.2kV oil immersed transformer to Philippine. The transformer are made of high-quality materials and adopt the latest technology, with more reliable performance and structure, high efficiency and energy saving, and favorable price.
750KVA Oil Immersed Distribution Transformer Product Features
The core is made of high-quality, high-performance silicon steel sheets, with low no-load loss.
The high-voltage winding adopts a layered structure, with high mechanical strength, balanced distribution, and strong short-circuit resistance.
The overall structure is fully sealed, and the vacuum oil filling process is adopted to ensure that the transformer oil is isolated from the outside air, prevent oil aging, and improve the reliability of transformer operation.
The product is equipped with a pressure relief valve, signal thermometer, gas relay, etc. to ensure the safe operation of the transformer.
The corrugated oil tank is used, which is simple to process, has high mechanical strength, good welding effect, no leakage, and good heat dissipation capacity.
It has beautiful appearance and small size, and is widely used in urban and rural power grids.
750KVA 13.2KV Oil Immersed Transformer Technical Parameters
| Model | S11-750-13.2/0.3 |
| Country of Origin | China |
| Type | Three Phase Oil Immersed Distribution Transformer |
| Winding material | Copper |
| Related capacity | 750KVA |
| Primary voltage | 13200V |
| Secondary voltage | 300V |
| Vector group | Dyn11 |
| Frequency | 50hz |
| Transformer oil | Mineral Oil |
| Cooling method | ONAN |
| Impedance voltage | 5.50% |
| Load loss | 8250W |
| No-load loss | 980W |
| Reference weight | 2240kg |
| Reference dimension | 1685*1185*1340mm |
| Manufacturing standards | IEC60076 |
750 KVA transformer impedance
A 750 kVA transformer typically has an impedance range of 5.0% to 8.0%, though specific values can vary by manufacturer and design, with some models having a rated impedance of 5.75%. This impedance is a critical parameter that determines how the transformer performs under load, affecting its voltage regulation and ability to handle fault currents.
Typical impedance values
General range: 5.0% to 8.0%
Example specific value: 5.75% for some models
What this means
Higher impedance: A higher impedance value means the transformer has a greater resistance to current flow. This can be beneficial for limiting fault currents but can also result in a larger voltage drop under load, impacting voltage regulation.
Lower impedance: A lower impedance value will result in a smaller voltage drop under load and better voltage regulation, but it will allow higher fault currents to pass through.
Manufacturer specifications: The exact impedance will be specified by the manufacturer and is dependent on the transformer's design, materials, and intended application. Always check the nameplate or specification sheet for the precise value.
What is the standard for transformer impedance?
The IEC 60076 standard specifies the maximum impedance tolerance for power transformers based on their rated power and voltage level. For transformers rated up to 500 kVA, the maximum impedance tolerance is 10%. For transformers rated between 500 kVA and 2 MVA, the maximum impedance tolerance is 7%.
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.
transformer Workshop equipment display
types of transformer from GNEE
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GNEE Transformer Order specification
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Demander |
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Demander: |
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Fax: |
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Project technical leader: |
Telephonemethods: |
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, Myanmar, Indonesia, Vietnam, Mongolia, Japan, Taiwan Province, Bangladesh, Sri Lanka, Lebanon, Saudi Arabia, Turkey, Armenia, Iraq, Iran, 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, Venezuela, Uruguay, Chile
Middle East: The Middle East region
Oceania: Australia, Papua New Guinea. Fiji