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TSTYNICE 33kv Dry-type Power Transformer

Our epoxy resin cast dry-type transformers represent the forefront of non-liquid cooling technology, with both core and windings fully encapsulated in high-quality epoxy resin for superior insulation and durability. They are available in both natural air cooling (AN) and forced air cooling (AF) configurations, ensuring efficient thermal performance across a wide range of applications.

Customization Capabilities:
Voltage range: 380v~35kv
Capacity range: 30kva~5000kva
Custom colors and dimensions available
OEM/ODM services to meet specific project needs

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

Certificate Collection

Technical Advantages of epoxy resin cast dry-type transformers:

1. The most advanced epoxy resin casting process in China is adopted, which has good insulation performance;

2. 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;

3.High reliability: using advanced technology, high mechanical strength, strong short-circuit resistance, small partial discharge, good thermal stability, and a service life of 30 years.

4. Zero pollution operation and maintenance: Using epoxy resin cast insulation material to meet high fire and explosion requirements, especially suitable for densely populated or enclosed spaces; Oil-free cooling system, eliminating the risk of oil leakage, in line with environmental protection certification; Fully sealed structure to achieve maintenance-free design, the whole life cycle operation and maintenance costs reduced by 60% +.

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

Urban Power Distribution: Perfect for high-rise buildings, shopping centers, airports, and subways, where fire safety and compact design are critical.
Industrial Plants: Supports stable and continuous power for manufacturing, petrochemical, metallurgy, and mining operations, with strong short-circuit resistance and low maintenance needs.
Renewable Energy Systems: Seamless integration with wind farms and solar power stations, providing grid-compatible, eco-friendly voltage conversion.
Hospitals & Data Centers: Ensures uninterrupted operation in mission-critical facilities requiring low partial discharge, excellent thermal stability, and long service life.
Underground & Indoor Installations: Oil-free, low-noise, and flame-retardant design makes it ideal for basements, tunnels, and enclosed substations.
Government & Infrastructure Projects: Widely used in smart grid upgrades, railway electrification, and municipal utility networks where reliability and environmental protection are paramount.

Main performance parameters for SC (B) 10 33KV voltage regulating power transformer without excitation:

Model	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)10-800	Dyn11	33~38.5	±5%	3.5	2200	9400	1.1	6
SC (B)10-1000	Yd11		±2×2.5%	6	2610	10800	1.1
SC (B)10-1250	Yyn0			6.3	3060	11900	1
SC (B)10-1500				10	3600	15400	1
SC (B)10-2000				10.5	4130	18200	0.9	7
SC (B)10-2500				11	4750	21800	0.9	7
SC (B)10-3150					5880	24500	0.8	8
SC (B)10-4000					6860	29400	0.8
SC (B)10-5000					8180	34960	0.7
SC (B)10-6300					9680	40800	0.7
SC (B)10-8000	Dyn11				11000	46060	0.6	9
SC (B)10-10000	Yd11			6	12660	56500	0.6
SC (B)10-12500	YNd11			6.3	15400	64600	0.5
SC (B)10-16000				10.5	18900	76000	0.5
SC (B)10-20000				11	22400	85500	0.4	10

Digital Manufacturing Excellence & Scalable Output

At TSTYNICE, our 250,000㎡ smart industrial base in Henan is equipped with state-of-the-art automated systems and 5G-enabled digital control. From raw material to final delivery, every step is precisely managed for optimal quality and efficiency.

Our 99% automation rate supports daily output of 50 oil-immersed transformers, plus 3,000 substations and 10,000 switchgear units annually—ensuring rapid response to bulk orders and urgent project needs worldwide.

Q: Are you a manufacturer or trading company?

A: We are an integrated manufacturer and exporter of transformers, compact substations, and high/low voltage switchgear. OEM and ODM services are fully supported.

Q: What are your main advantages?

A: With over 30 years of industry experience, we offer:

• Advanced automated production lines

• Stable product quality with international certifications

• Fast and on-time delivery

• Responsive and professional customer support

• Spare parts support available for selected models

Q: What is your typical lead time?

A: Lead time depends on the order quantity. Generally, production takes 15–20 days after receiving the deposit.

Q: What payment methods do you accept?

A: We support T/T, L/C, PayPal, Visa, and Western Union, depending on the order and market region.

Q: Do you conduct quality inspections before shipment?

A: Yes, we perform 100% quality control inspection on all products before delivery.

Q: What certifications do you have?

A: Our products meet IEC, CE, SGS, ISO, and Gost standards.

We also maintain long-term strategic partnerships with ABB, Siemens, and DuPont.

Q: How can we ensure the product quality is as promised?

A: We encourage clients to conduct material testing upon receipt. We are committed to long-term partnerships—not one-time sales—and always prioritize transparency and quality.

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.