SFZ-14000/138 Transformer For North American Replacement Project
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High-performance SFZ-14000/138 low-voltage tap-changing transformer, meticulously engineered for the North American project, has been shipped overseas successfully.
The SFZ-14000/138 transformer successfully delivered to the North American market integrates multiple innovative technologies from the company team and strictly adheres to North America's stringent technical and environmental standards:
* Precise Voltage Regulation, Stable and Reliable
Innovatively adopts a series tap-changing structure, achieving high-current, low-voltage precise regulation of ±16×0.625% on the low-voltage side, significantly enhancing the stability and reliability of secondary-side voltage output. Fully compliant with IEEE standards and CSA certified.
* Green and Environmentally Friendly, Excellent Performance
The core insulating medium uses fully biodegradable FR3 vegetable oil. Compared to traditional mineral oil transformers, lifecycle carbon emissions are significantly reduced while featuring low temperature rise, low noise, and low vibration characteristics, meeting strict regulations in high environmental requirement regions.
* Safe and Robust, Long-term Operation
Through structural and process optimization, it possesses excellent flame-retardant and explosion-proof capabilities, zero partial discharge, strong short-circuit resistance, and high reliability. Utilizing seven-level temperature control technology for precise internal temperature management, combined with the vegetable oil insulation system, the design service life can exceed 40 years.
* Strong Overload Capacity, High Adaptability
Supports stable long-term operation at 120% load, effectively addressing load fluctuation and short-term overload challenges, providing reliable protection for complex grid operating conditions.
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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