220 110 KV Railway Traction Transformer
High Voltage: 220±2*2.5% KV
Low Voltage: 27.5 kV
Type: Oil-Filled Transformer
Voltage: 16000 kVA - 90000kVA
Vector Group: I,i0
Service: Customized Service
Nature of Business: Manufacturer
Have questions? GNEE sales representatives are available for live chat now
Send E-mail: sales@gneeelectric.com
Tel: +8615824687445
220 110 kV Railway Traction Transformer Product Introduction
- 1.Utilization of DuPont's Nomex insulationsystem, registered trademark: Anleide.
- 2.Advanced seven-level temperature controltechnology.
- 3. High overload capacity: Meets typical overloacurves, capable of sustained 30% overload.
- 4. Low partial discharge: Routine Partialdischarge is less than 40pC.
- 5. Short-circuit withstand capability: Meets theoperational characteristics of frequent near-endshort circuits in electrified railways.
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220kV Single-Phase Traction Transformer |
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Rated Capacity( kVA) |
Voltage combination and tap range |
Vector Group |
No-load Loss (kW) |
Load Loss (kW) |
No-load Current % |
Impedance Voltage % |
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High Voltage (kV) |
Low Voltage (kV) |
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16000 |
220±2 x 2.5% |
27.5 |
I,i0 |
16 |
55 |
0.65 |
10.5 |
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20000 |
220±2 x 2.5% |
27.5 |
I,i0 |
19 |
66 |
0.6 |
10.5 |
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25000 |
220±2 x 2.5% |
27.5 |
I,i0 |
23 |
77 |
0.6 |
10.5 |
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31500 |
220±2 x 2.5% |
27.5 |
I,i0 |
27 |
89 |
0.5 |
10.5 |
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40000 |
220±2 x 2.5% |
27.5 |
I,i0 |
32 |
103 |
0.45 |
10.5 |
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50000 |
220±2 x 2.5% |
27.5 |
I,i0 |
38 |
124 |
0.45 |
10.5 |
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63000 |
220±2 x 2.5% |
27.5 |
I,i0 |
44 |
148 |
0.4 |
10.5 |
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75000 |
220±2 x 2.5% |
27.5 |
I,i0 |
50 |
167 |
0.4 |
10.5 |
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90000 |
220±2 x 2.5% |
27.5 |
I,i0 |
57 |
191 |
0.35 |
10.5 |
With the rapid development of high-speed railways, the voltage level of railway traction transformers continues to upgrade. The 220kV electrical grid has a large capacity, and the harmonics and negative-sequence components generated by 220kV single-phase traction transformers have a minimal impact on the 220kV electrical grid. The 220kV power supply system offers greater stability and reliability, and single-phase supply aligns better with the characteristics of railway electrification. It is characterized by simplicity in protection, lower initial investment, and the ability to reduce railway operational costs effectively. As China's economy and power system continue to evolve,220kV single-phase traction supply is an inevitable trend. The connection configuration for single-phase traction transformers is in the I-I form. Depending on capacity or user requirements, internal connections can be either series or parallel.
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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500kV oil-immersed single-phase double-winding unexcited voltage regulating power transformer |
| 500kV oil-immersed three-phase double-winding unexcited voltage regulating power transformer |
| 330kV oil-immersed three-phase double-winding unexcited voltage regulating power transformer |
| 330kV oil-immersed three-phase three-winding unexcited voltage regulating power transformer |
| 220kV oil-immersed three-phase double-winding unexcited voltage regulating power transformer |
| 220kV oil-immersed three-phase three-winding unexcited voltage regulating power transformer |
| 220kV oil-immersed three-phase double-winding on-load voltage regulating power transformer |
| 220kV oil-immersed three-phase three-winding on-load voltage regulating power transformer |
| 110kV oil-immersed three-phase double-winding unexcited voltage regulating power transformer |
| 110kV oil-immersed three-phase three-winding unexcited voltage regulating power transformer |
| 110kV oil-immersed three-phase double-winding on-load voltage regulating power transformer |
| 110kV oil-immersed three-phase three-winding on-load voltage regulating power transformer |
| 66kV oil-immersed three-phase double-winding unexcited voltage regulating power transformer |
| 66kV oil-immersed three-phase double-winding on-load voltage regulating power transformer |
| 35kV oil-immersed three-phase double-winding unexcited voltage regulating power transformer |
| 35kV oil-immersed three-phase double-winding on-load voltage regulating power transformer |
| 10kV oil-immersed three-phase double-winding unexcited voltage regulating power transformer |
| 10kV oil-immersed three-phase double-winding on-load voltage regulating power transformer |
| S(B)H15(21~25)-M sealed amorphous alloy power transformer |
| SCB three-dimensional core transformer |
| 35kV dry-type non-excitation voltage regulating power transformer |
| 35kV dry-type on-load voltage regulating power transformer |
| 35kV dry-type three-phase double-winding transformer for photovoltaic, wind power and energy storage on the new energy power generation side without excitation voltage regulation |
| 20kV dry-type non-excitation voltage regulating distribution transformer |
| 10kV dry-type three-phase double-winding non-excitation voltage regulating distribution transformer |
| 10kV dry-type three-phase double-winding transformer for photovoltaic, wind power and energy storage on the new energy power generation side |
| SC(B)H15(17~19) amorphous alloy dry type transformer |
| SG(B)12~18 non-encapsulated H-class dry type transformer |
| CSD marine transformer |
| SGB three-dimensional core transformer |
| New energy transformer |
| 35kV oil-immersed three-phase double-winding non-exciting voltage regulation new energy generation side for photovoltaic, wind power, energy storage transformers |
| 10kV oil-immersed three-phase double-winding non-exciting voltage regulation new energy generation side for photovoltaic, wind power, energy storage transformers |
| Prefabricated cabin substation |
| Integrated inverter and step-up converter |
| 10000V mine transformer |
| 6000V mine transformer |
| Buried transformer |
| Phase-shifting rectifier transformer |
| Electric furnace transformer |
| Grounding transformer |
| OSG/SG three-phase dry isolation transformer |
| Three-phase pad-mounted transformer |
| Single-phase pad-mounted transformer |
| Single-phase pole-mounted transformer |
Get Transformer Order specification
GNEE Transformer Order specification
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When choosing our company's products, please provide the following data to better serve you. |
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Demander |
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Demander: |
Telephonemethods: |
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
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