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TSTYNICE 15kv Dry-type Power Transformer

Our epoxy resin cast dry-type transformers represent the pinnacle of non-liquid cooling technology, featuring core and windings completely encapsulated in premium epoxy resin. Available in both natural air cooling (AN) and forced air cooling (AF) configurations.

Customization Capabilities:
Voltage range: 6.6kV-35kV
Capacity range: 30kVA~5000kVA
Custom colors and dimensions
OEM/ODM services

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

Factory Show

FAQ

Certificate Collection

Technical Advantages of epoxy resin cast dry-type transformers:

1.Wide voltage range adaptation: Support 6.6kV to 35kV medium and high voltage grid access, covering industrial and commercial power distribution, rail transit, new energy grid connection and other scenarios, and optimize the energy efficiency performance of different voltage levels through segmented winding design.

2.Efficient heat dissipation and weather resistance: Natural air cooling (AN) or forced air cooling (AF) mode, combined with IP23 and above protection level, can withstand -40 ° C to + 120 ° C extreme environment, humid, dusty, corrosive gas environment can still operate stably.

3.The core bending clamp is designed independently, with a simple structure, convenient manufacturing and installation, and greatly reduced operating noise.

4.The new cold-pressed oriented silicon steel sheet is used as the iron core, and the seven-step 45-degree full-bevel joint has beautiful craftsmanship, and the no-load loss is reduced by 3-5% percentage points compared with the three-step.

Quality Assurance:

• 100% routine testing including:

Lightning impulse (170kV) / Partial discharge (<10pC) / Temperature rise validation

• Cerifications: IEC 60076, IEEE C57.12.01, CE, UL

Application

Commercial & Industrial Facilities – Reliable power supply for office buildings, shopping malls, factories, and logistics centers.
High-rise Buildings & Urban Infrastructure – Safe for indoor installation with non-flammable epoxy insulation, ideal for basements and rooftop substations.
Hospitals & Data Centers – Quiet, low-loss, and highly reliable design ensures continuous power for critical environments.
Rail Transit & Airports – Withstand vibrations and harsh conditions while delivering stable voltage for rail networks and terminals.
New Energy Integration – Adaptable for wind and solar energy systems, enabling grid connection and stable power output.
Remote or Extreme Environments – Operates stably from -40°C to +120°C, resistant to humidity, dust, and corrosive gases.

Main performance parameters for SC (B) 10 15~22KV voltage regulating power transformer without excitation:

Model	Rated capacity (KVA)	Connection symbol	Voltage combination (KV)			No-load loss (W)	Load loss (W)	No-load current (%)	Short circuit impedance (%)
			High-	Tapping range	Low-
			voltage	Tapping range	voltage
SC (B)10-50	50	Yyn0	15	±5%	0.4	345	1180	2.4	6
SC (B)10-100	100	or	20	±2×2.5%		545	1910	2.2
SC (B)10-160	160	Dyn11	22			682	2780	1.8
SC (B)10-200	200					745	2820	1.8
SC (B)10-250	250					855	3280	1.6
SC (B)10-315	315					980	3910	1.6
SC (B)10-400	400					1165	4640	1.4
SC (B)10-500	500					1365	5550	1.4
SC (B)10-630	630					1545	6550	1.2
SC (B)10-800	800					1775	7910	1.2
SC (B)10-1000	1000					2090	9370	1
SC (B)10-1250	1250					2410	11050	1
SC (B)10-1600	1600					2820	13300	1
SC (B)10-2000	2000					3280	15690	0.8
SC (B)10-2500	2500					3910	18550	0.8

Smart Manufacturing & Reliable Capacity
TSTYNICE operates a 250,000㎡ intelligent factory with 220+ advanced automation units and full-process digital systems (WMS, RGV/AGV, MES) powered by 5G. We achieve 99% automation and real-time precision control across production.

With an annual capacity of 3,000 substations, 10,000 switchgear sets, and 50 oil-immersed transformers per day, we ensure fast delivery and consistent quality to meet global high-volume demands.

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: CE SGS ISO IEC 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.