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TSTYNICE 33 kv Oil-Immersed Power Transformer

Our oil-immersed transformer series represents the pinnacle of power conversion technology, delivering unmatched performance, safety, and durability. Engineered for excellence, these transformers set industry benchmarks for reliability across global power applications.

Technical Specifications:
• Voltage Coverage: 33KV~35KV
• Capacity Spectrum: 30kVA~10000kVA configurations
• Certification Mastery: ISO 9001, IEC, SGS, Intertek, CCC, CE, BV, GOST compliant

For detailed specifications, quotations, or project consultations, please contact us:
Email: sales@tstytransformer.com
WhatsApp: +86-18001856258
Our technical team is ready to assist you — wherever your business operates.

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Product Advantage

Technical Parameters

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FAQ

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Advantages of material selection:

① Silicon steel sheet: Use the best silicon steel sheets from Baosteel and Wugang Iron and Steel in China, with high quality, high permeability and low loss;

② Conductive rod: Highly conductive H62 material, effectively reducing heat generation and ensuring equipment stability;

③ Insulation system: New mineral insulating oil, enhanced insulation/extended life;

④ Tansformer box: Made of national standard high-quality steel plate profile, mechanical strength ≥345MPa, durable life >30 years.

⑤ Silicon steel sheets: Utilizing the best silicon steel sheets from Baosteel and Wuhan Iron and Steel in the country, they are of high quality and high permeability, reducing waste.

Advantages of digital production:

a. Cutting-edge intelligent manufacturing system

The automation level of iron core production is as high as 95%, and the material is selected from Baosteel. Equipped with a full set of iron core shearing machines, fully automatic winding machines, vacuum drying/oiling systems, international testing centers and other high-end equipment throughout the process, the horizontal and vertical cutting accuracy reaches the industry-leading level, and has passed ISO/IEC international certification to ensure that product quality meets international standards.

b. Efficient production capacity guarantee

The automated production line achieves a daily production capacity of 50 units, and the efficiency is 3 times higher than the traditional mode. Compared with traditional manual lamination, the transformer noise is reduced by 5 decibels and the no-load loss is reduced by 5%.

Application

1. Power Grid Infrastructure

Deployed in substations and grid nodes to ensure stable voltage regulation and efficient energy transmission over long distances. Proven reliability in both urban and rural utility networks.

2. Industrial & Mining Facilities

With high mechanical strength, low loss, and reduced noise, these transformers meet the heavy load demands of industrial plants, mines, steelworks, and manufacturing lines.

3. Renewable Energy Projects

Seamlessly integrated into solar farms, wind power stations, and other renewable generation systems to step up/down voltage and stabilize output to the grid.

4. Commercial Complexes & Data Centers

Ensures uninterrupted and low-noise power supply for commercial buildings, data centers, hospitals, airports, and other high-load urban infrastructures.

5. Oil & Gas and Petrochemical Sites

Resistant to harsh environments with high fire safety, stable insulation systems, and long lifespan—ideal for remote or extreme conditions.

Technical Parameter for S Series 33kv No-load Voltage Regulation Transformer

Rated Capacity (KVA)	Voltage Combination			Connection Group Symbol	No-load Loss R(W)	Load Loss R(W)	Impedance Voltage(%)	No-load Current (%)	LWH (mm)	Gauge Horizontal*Vertical (mm)	Active parts Weight (kg) * Oil Weight (kg)	Total Weight (kg)
Rated Capacity (KVA)	High Voltage（KV)	Tapping Range of High Voltage	Low Voltage （KV)	Connection Group Symbol	No-load Loss R(W)	Load Loss R(W)	Impedance Voltage(%)	No-load Current (%)	LWH (mm)	Gauge Horizontal*Vertical (mm)	Active parts Weight (kg) * Oil Weight (kg)	Total Weight (kg)
50	33 35 38.5	±5% ±2x2.5%	0.4	Dyn11 Yyn0	160	1200/1140	6.5	1.3	11959351825	660*660	300*330	860
100					230	2010/1910		1.1	12009951935	660*660	470*383	1130
125					270	2370/2260		1.1	12359401955	660*660	550*465	1335
160					280	2820/2680		1	12858951950	660*660	580*485	1475
200					340	3320/3160		1	131011501985	660*660	680*595	1755
250					400	3950/3760		0.95	145010902010	660*660	860*650	2000
315					480	4750/4530		0.95	193010652320	820*820	980*765	2290
400					580	5740/5470		0.85	185011652015	820*820	1170*885	2725
500					680	6910/6580		0.85	204512052415	820*820	1340*960	3090
630					830	7860		0.65	208512402515	660*660	1550*895	3810
800					980	9400		0.65	230516152685	820*820	1990*1030	4510
1000					1150	11500		0.65	254515402590	1070*1070	2415*1475	5055
1250					1400	13900		0.6	249520102675	820*820	2480*1405	5290
1600					1690	16600		0.6	268021002770	820*820	2600*1490	5450
2000					1990	19700		0.55	279021802860	820*820	2720*1590	5600
2500					2360	23200		0.55	290022902980	1070*1070	2830*1720	5760

Spanning 250,000 in Henan, our smart factory leverages 5G automation to produce 3,000+ IEC/CE-certified substations annually. With 158 patents and 99% automation, we power projects across 80+ countries.

Q: Are you a factory or a trade company?

A: Integrated Manufacturing & Trading, OEM/ODM available.

Q: Our Advantage?

A: 30 years experience, Advanced production equipments, Stable quality, Fast delivery, Professional & good & Prompt service.Also some free parts can be provided.

Q: How long is your delivery time?

A: it is depends on your quantity,generally within 15-20 days upon receipt of the advance payment.

Q: What is your payment terms?

A : T/T, L/C,Visa Paypal ,Weatern Union for different circumstances.

Q: Do you have inspection procedure before shiping?

A: Yes,we do 100% QC inspection

Q: What certificates do you have？

A: CESGS ISOIEC StandardsGost Certificates.

Long-term strategic partnerships with DuPont, ABB, Siemens, etc.

Q:AS we knew, when we make order, some suppliers used lower material insted of high quality material products and send to us, how can i trust you?

A: we suggest clients to test the material after receiving goods. We aim to do long term business, not one times.

TSTYNICE transformers hold ISO 9001, IEC 60076, CE, GOST, SGS, and BV certifications, with 158 patents (20 inventions). Our CNAS-accredited lab ensures global compliance across 80+ markets.