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TSTYNICE Epoxy Resin Transformer Cast Resin Dry Type Transformer Manufacturer

Epoxy resin dry type transformer is a kind of dry-type transformer, it is also known as: cast resin transformer (CRT)/epoxy cast dry transformer/dry type cast resin transformer. Where the windings (usually the high-voltage and/or low-voltage coils) are completely cast in solid epoxy resin instead of being immersed in insulating oil.Unlike oil-filled transformers, this type uses solid insulation (epoxy resin) to protect the coils and does not require oil or liquid coolant.

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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Structure & Working Principle

Windings (usually made of copper or aluminum) are placed in a mold. Epoxy resin is poured (under vacuum conditions) around the windings. Once cured, the resin becomes a solid insulating shell that fully encapsulates the windings. Cooling is AN(Air Natural)AF(Air Forced, using fans)

They are especially suitable for indoor installation and public places, thanks to their fire safety and clean operation.

Commercial buildings (malls, offices)
Hospitals
Industrial facilities
Subway & rail transit systems
Coastal or humid environments
Renewable energy systems (solar, wind)
Residential complexes
Data centers & critical facilities

Epoxy Resin Transformer with Low Maintenance & Wide Voltage Support

This epoxy resin transformer supports a wide voltage range from 6.6kV to 35kV(know more about 10kv Dry-type Power Transformer, 15kv Dry-type Power Transformer, 22kv Dry-type Power Transformer, 33kv Dry-type Power Transformer), covering everything from renewable energy grids to commercial power distribution. Its sealed, oil-free design means zero maintenance, reduced lifecycle costs, and no pollution.

TSTYNICE epoxy resin transformer protection up to IP23, and operates reliably in extreme climates from -40°C to +120°C.

Main performance parameters for SC (B) 10 11KV 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)10-30	30	Yyn0	11	±5%	0.4	190	710	2.4	4
SC (B)10-50	50	or	10.5	±2×2.5%		270	1000	2.4
SC (B)10-80	80	Dyn11	10			370	1380	1.8
SC (B)10-100	100		6.3			400	1570	1.8
SC (B)10-125	125		6			470	1850	1.6
SC (B)10-160	160					550	2130	1.6
SC (B)10-200	200					630	2530	1.4
SC (B)10-250	250					720	2760	1.4
SC (B)10-315	315					880	3470	1.2
SC (B)10-400	400					980	3990	1.2
SC (B)10-500	500					1160	4880	1.2
SC (B)10-630	630					1350	5880	1
SC (B)10-800	800					1520	6960	1	8
SC (B)10-1000	1000					1770	8130	1
SC (B)10-1250	1250					2090	9690	1
SC (B)10-1600	1600					2450	11730	1
SC (B)10-2000	2000					3050	14450	0.8
SC (B)10-2500	2500					3600	17170	0.8

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

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

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: What is the TSTYNICE Three Phase Dry Type Transformer?

A: The Three Phase Dry Type Transformer is also called dry type transformer, dry type distribution transformer, and cast resin dry type transformer, is a high-performance transformer designed for safe, efficient, and eco-friendly power distribution in demanding environments.

Q: What are the key advantages of a dry-type transformer?
A: A primary advantage is enhanced safety. Unlike oil-immersed transformers, dry-type transformers do not use flammable liquids for cooling and insulation, significantly reducing fire hazards. They are also known for their reliability and require less maintenance.

Q: Where are TSTYNICE transformers typically used?
A: TSTYNICE provides a wide range of power equipment solutions. Their transformers, including the dry-type models, are used in various applications like railway electrification (as mentioned in a case study for the Shanghai-Nantong project), mining industries, and potentially other commercial and industrial settings requiring medium voltage power distribution.

Q: Who is TSTYNICE, and what is their expertise?
A: TSTYNICE is the strategic incubator of TSTY Electric, a leading power equipment manufacturer in China. Headquartered in the Shanghai Pilot Free Trade Zone, they leverage 30 years of group expertise and operate globally, exporting cost-effective electrical equipment, including transformers, to emerging markets across Southeast Asia, the Middle East, Africa, and South America

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.