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Dry Type Transformers Cast Resin

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Cast Resin Dry Type Transformer

IEC/ANSI Cast Resin Transformers from TAILI Electric, is difference from oil type transformer is that it must be installed inside with the core and winding are not impregnated in insulating oil, are widely used in local lighting, high-rise buildings, airports, docks, CNC machinery and equipment, etc. Its cooling method can be divided into natural air cooling (AN) and forced air cooling (AF). With natural air cooling, the cast resin transformer can operate continuously at rated capacity for a long period of time. With forced air cooling, the fire resistant transformer output capacity can be increased by up to 50%. It is suitable for intermittent overload operation, or emergency accident overload operation; because of the load loss and impedance voltage increase during overload, it is in non-economic operation, so it should not be in long time continuous overload operation

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Basic Info.

Model NO.	SCB11/TTR
Cooling Method	AN or AF
Certification	CE, ASTA, SGS, ISO9001-2000, ISO9001
Standard	IEC 60076, IEC 60726, IEEE, ANSI,NEMA
Brand	Taili
Vector Group	Dyn5, Dyn11, Yyn0
Taps Voltage	5 Steps 2*2.5% or Customized
Specification	2500kva 10/0.4kv
Origin	Zhejiang china
Production Capacity	1000/Month
Core	Core-type Transformer
Winding Type	Two-winding Transformer
Usage	Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer
Shape of Core	Ring
Application	commercial buildings, airports, hotels, industrial plants, mines, and data centers
Frequency	50Hz/60HZ
Transport Package	Export Cartons
Trademark	TAILI brand
HS Code	85043190

Performance parameters for reference

(The value can be customized according to customer's local demand!)

Rated capacity (KVA)	Voltage combination			Connected group label	No-load loss(W)	Load loss(W)			No-load current(%)	Impedance voltage(%)
	High voltage (KV)	(%)tap range	Low Voltage (KV)			Load loss(W)
						130°℃(B)	155°℃(F)	180℃(H)
						100℃	120℃	145℃
50	20 22 24	±2X2.5 ±5	0.4	Dyn11 Yyno Y/d-11	340	1160	1230	1310	2.0	6.0
100					540	1870	1990	2130	1.8
160					670	2330	2470	2640	1.5
200					730	2770	2940	3140	1.5
250					840	3220	3420	3660	1.3
315					970	3850	4080	4360	1.3
400					1150	4650	4840	5180	1.1
500					1350	5460	5790	6190	1.1
630					1530	6450	6840	7320	1.0
800					1750	7790	8260	8840	1.0
1000					2070	9220	9780	10400	0.85
1250					2380	10800	11500	12300	0.85
1600					2790	13000	13800	14800	0.85
2000					3240	15400	16300	17500	0.7
2500					3870	18200	19300	20700	0.7
2000					3240	16800	17800	19100	0.7	8.0
2500					3870	20000	21200	22700	0.7	8.0

Note: It supports the customization of up to 4000kVA capacity and 36kV voltage level, and can flexibly adjust the parameters according to technical needs.

Resin cast dry-type transformer

Cast Resin Dry Type Transformer

Advantages and characteristics of the product

01 Safe and environmentally friendly design

- Fire and explosion-proof: Oil-free design avoids the risk of oil leakage and fire of traditional oil-immersed transformers, and can be directly installed in load centers(such as high-rise buildings and data centers).

- Green and pollution-free: Environmentally friendly epoxy resin material is used, no harmful gas is released, and it meets indoor environmental protection standards.

02 High-performance process

- Excellent mechanical strength: The high-voltage winding adopts a multi-layer cylindrical/continuous structure, and the low-voltage winding (specific capacity) adopts a spiral design, which is better than the national standard in terms of short-circuit resistance, and has passed the rigorous mechanical strength test.

- Low loss and energy saving: The imported high-permeability cold-rolled silicon steel sheet is selected, and the core stacking process of full miter joint is used to reduce the no-load loss by 15%-20%, which meets the first-class energy efficiency standard.

- Intelligent temperature control system: Equipped with high-precision temperature sensor, real-time monitoring of three-phase winding temperature, automatic start and stop cooling fan, and support over-temperature alarm, fault tripping and other protection functions.

03 Environmental adaptability

- Wide range of temperature and humidity:

- Operating temperature: -25°C~+40°C (24-hour average ≤+35°C);

- Relative humidity: ≤50% at 40°C, ≤90% at 20°C, no additional moisture protection required.

- High altitude compatible: The standard design is suitable for ≤ 1000 meters above sea level, and can be customized within 2000 meters above sea level (depressurization is required).

- Resistant to harsh environments: Resistant to salt spray, dust and other polluted environments, to meet the needs of special scenarios such as chemical industry and coastal areas.

04 Structural and maintenance advantages

- Compact and lightweight: 30% smaller in size, 40% lighter in weight and 20% less installation cost than oil-immersed transformers of the same capacity.

- Maintenance-free design: Fully sealed resin cast windings eliminate the need for regular oil changes or insulation monitoring, reducing O&M costs.

- Forced air cooling and efficiency improvement: Equipped with a cross-flow cooling fan as standard, it can run at full load for a long time when natural air cooling (AN) is available; The capacity of forced air cooling (AF) is increased by 50% to adapt to short-term overload or emergency scenarios (it is recommended not to exceed 8 hours of continuous overload).

Application scenarios

Commercial and civil buildings

The power distribution system of high-rise buildings, shopping malls, and hospitals is directly installed in the low-voltage distribution room and provides 0.4kV power supply.

Industrial

- Power supply for precision equipment: isolation transformers for CNC machine tools and automated production lines;
- Special environments: power conversion in wet workshops, dusty environments (e.g. food processing, textile industry).

Commercial and civil buildings

The power distribution system of high-rise buildings, shopping malls, and hospitals is directly installed in the low-voltage distribution room and provides 0.4kV power supply.

Workshop

Cast Resin Dry Type Transformer

Service System

Pre-sales support

- Provide customized power distribution scheme design to optimize cabinet size, equipment layout and product configuration;

- For special needs (such as non-standard voltage, explosion-proof certification), provide detailed technical solutions within 12 hours.

After-sales guarantee

- Quick response: reply to fault report within 24 hours, remote debugging or on-site service within 48 hours (domestic);

- Regular return visits: inspect the operation status of the equipment free of charge every year and provide maintenance suggestions;

- Transparent service: the cause of the failure is explained in writing, the maintenance cost is priced according to the market standard, and the cost is refunded on the spot for valid complaints;

- Warranty policy: 2-3 years warranty for the whole machine (according to the model), lifetime costprice spare parts supply.

Cast Resin Dry type transformer

FAQ – Common Buyer Questions

Q1: What sets cast resin dry-type transformers apart from other dry-type transformers?
A: The epoxy resin encapsulation provides superior safety, moisture resistance, and mechanical strength, ideal for modern commercial and industrial power systems.

Q2: Are these transformers suitable for renewable energy projects?
A: Yes, they are widely used in solar, wind, and hybrid energy plants due to low maintenance and high reliability.

Q3: How do these transformers perform in coastal or high-humidity environments?
A: They are fully moisture-resistant and corrosion-resistant, making them suitable for harsh environmental conditions.

Q4: Which certifications should international buyers look for?
A: IEC 60076‑11, ISO 9001, CE, UL, and CSA—ensuring safety and global compliance.

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