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Dry-Type Power Transformer
Dry-Type Power Transformer Dry-Type Power Transformer

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Dry-Type Power Transformer

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Product Introduction
The cast coil of this product, with short glass fibers as filler, adopts a segmented cylindrical structure, and axial air ducts are set inside the coil to improve heat dissipation conditions. The scientific casting molding process can ensure that the resin fully penetrates into the turns, layers, and segments to guarantee the electrical insulation strength of the product and a low partial discharge value (≤ 5pc).
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The SC(B)10 series dry-type power transformers have remarkable technical features. The epoxy resin vacuum casting process is adopted, resulting in excellent insulation performance and low partial discharge. High-quality cold-rolled silicon steel sheets are used for the iron core, with a good lamination process, leading to low no-load loss. The coils are made of materials with high electrical conductivity, resulting in low load loss and good energy-saving effect. After curing, the coils form a rigid whole, with strong short-circuit resistance and high mechanical strength. Through noise reduction design for the iron core and coils, the operating noise is low. There is no need for insulating oil, making it environmentally friendly and pollution-free, and convenient for maintenance. It can also adapt to different altitudes, temperatures, and humidity environments, and has a wide range of application scenarios.

How to prevent the cracking of resin castings, control the generation of residual bubbles in the castings, and reduce partial discharge to a relatively small limit has always been a major issue for dry - type transformer manufacturers at home and abroad, and it is a key manufacturing technology for resin - cast dry - type transformers.


Through repeated production practices and frequent physical and chemical experiments, our company has successfully solved this cutting - edge problem. For our products with short glass fibers as filler and thin insulation vacuum casting type, the tensile strength has been increased to 170N/mm², and the bending strength has been increased to 220N/mm², which improves the mechanical properties of resin solidification as a whole.


Altitude ≤ 4000m;

Maximum ambient temperature: +40°C;

Maximum annual average temperature: +20°C;

Maximum daily average temperature: +30°C;

Minimum outdoor temperature: -45°C;


Rated Capacity (kVA)Voltage Combination (kV)
No-load Loss (W)Load Loss (W) (120℃)Short-circuit Impedance (%)No-load Current (%)Sound Pressure Level (Lₚₙ, dB)IP00 (Without Enclosure)
Length × Width × Height (mm)
Gauge (mm)Mounting holeTotal weight (kg)IP20 (IP23)
30High Voltage (kV)Tap(%)Tapping(kV)Connection Group Symbol190710\multirow{9}{*}{4.0}248625×500×710400×4504 - Φ193101200×1200×1300440
506
6.3
6.6
10
10.5
11
±5%
or
±2×
2.5%
0.4Dyn11orYyn027010004248650×500×825400×4504 - Φ193201200×1200×1300450
8037013801.548765×750×770550×7004 - Φ194901200×1200×1300620
10040015701.548850×750×835550×7004 - Φ194951200×1200×1300630
12547018501.349900×750×795550×7004 - Φ196951400×1200×1500875
16054021301.349940×750×865550×7004 - Φ197751300×1200×1500925
20062025301.1491000×800×925660×7504 - Φ199801500×1300×18001160
25072027601.1491000×900×1050660×8504 - Φ1911301500×1300×18001310
31588034701511120×900×990660×8504 - Φ2212201600×1350×22001470
40098039901511160×900×1040660×8504 - Φ2214051600×1350×22001655
500116048801511200×900×1090660×8504 - Φ2216101600×1350×22001860
630134058800.85521420×1000×1020820×9504 - Φ2219001800×1450×22002250
6301300596060.85521420×1000×1020820×9504 - Φ2219001800×1450×22002250
800152069600.85521440×1000×1145820×9504 - Φ2221501800×1500×22002530
1000177081300.85531470×1000×1230820×9504 - Φ2226651900×1500×22003065
1250209096900.85531530×1000×1235820×9504 - Φ2230501900×1500×22003450
16002450117000.85531600×1250×1355820×12004 - Φ2237302000×1650×22004230
20003050144000.7551700×1250×1450820×12004 - Φ2244502100×1650×22004960
25003600171000.7551700×1250×1580820×12004 - Φ2250252200×1650×22005545


1. Are you a trading company or manufacturer ?

We are a professional  factory with  10 years experience in the field of  High  and low  Voltage switchgears, Substation, transformers, cable distribution box and various electrical equipment, such as vacuum circuit breaker, load break switch etc.

Our factory is the excellent supplier of State Grid Corporation od China.


2. Do you accept customized serveice?

We offer  OEM/ODM service, can print your logo on product. our  professional technical and quotation team can provice a satisfied project according to your drawing and parameters .


3. What is your MOQ?

Our MOQ is 1 piece.  


4. How long is your delivery lead time?

It depends on your  product requirement and quantity. Generally , 5~10  working days is avaliable.


5. How do you solve quality problems?

Please porvide detailed photoes of quality problems.  our technical  and quality testing department  will analyse. we will make a satisfied soluton within 2 days.


6. What is your payment terms?

30%T/T in adcance, 70% before shipment.  West union,  L/C are  also acceptable.

Telephone

+86-19518180858
+86-19518180868
​Copyright © 2025 Zhejiang Shengxian Electric Power Technology Co., Ltd. All Rights Reserved.

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