SGB Three-dimensional Core Transformer
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Henan GNEE Electric Co., Ltd. is one of the most reliable manufacturers and suppliers of sgb three-dimensional core transformer in China. If you're going to buy customized sgb three-dimensional core transformer made in China, welcome to get quotation from our factory. Quality products and reasonable price are available.
introduction of SGB three-dimensional core transformer
GNEE TRANSFORMER supplies SGB three-dimensional core transformer.
The key component of the three-dimensional core transformer is the three-dimensional wound core, the whole core is composed of three identical single frames, which are arranged in an equilateral triangle, each single frame is continuously wound by a plurality of trapezoidal strips in turn, and the cross-section of the single frame is close to a semicircle after winding, and the cross-section is a quasi-polygon that is very close to a whole circle after being assembled.
The whole magnetic circuit is tightly wound, there is no air gap, the direction of high permeability and the direction of the magnetic circuit of the silicon steel belt are completely consistent, the reluctance is small, and the length of the three-phase magnetic circuit is consistent, so that the three-phase balance, reduce the third harmonic of the transformer, save materials, improve performance, reduce losses, reduce no-load current, reduce operating noise and other advantages.
Operating Conditions
- Altitude: Up to 1,000 meters.
- Cooling Air Temperature:
Maximum temperature: 40°C
Maximum monthly average temperature: 30°C
Maximum annual average temperature: 20°C
Minimum temperature: -25°C (for outdoor transformers)
Minimum temperature: -5°C (for indoor transformers)
- Humidity:The relative humidity of the surrounding air should be below 93%, and there should be no water droplets on the surface of the windings.
If the operating conditions exceed the above requirements, appropriate adjustments to operating parameters (such as output current) and protective measures should be taken to ensure the product's operational lifespan and safety reliability.
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Rated (kVA) |
High voltage (kV) |
Tap range |
Low voltage (kV) |
connected group label |
No-load (w) |
Load loss (W) |
No-load current(%) |
| 30 | 6 6.3 6.6 10 10.5 11 |
±2*2.5 ±5 |
0.4 |
Dyn11 |
170 | 670 | 4.0 |
| 50 | 240 | 940 | |||||
| 80 | 330 | 1290 | |||||
| 100 | 360 | 1480 | |||||
| 125 | 420 | 1740 | |||||
| 160 | 480 | 2000 | |||||
| 200 | 550 | 2370 | |||||
| 250 | 640 | 2590 | |||||
| 315 | 790 | 3270 | |||||
| 400 | 880 | 3750 | |||||
| 500 | 1040 | 4590 | |||||
| 630 | 1200 | 5530 | |||||
| 630 | 1170 | 5610 | 6.0 | ||||
| 800 | 1360 | 6550 | |||||
| 1000 | 1590 | 7650 | |||||
| 1250 | 1880 | 9100 | |||||
| 1600 | 2200 | 11000 | |||||
| 2000 | 2740 | 13600 | |||||
| 2500 | 3240 | 16100 |
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
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, 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
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