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1000 KVA Cast Resin Dry Type Transformer

03-11 2025 | By:

Primary Voltage:11KV
Secondary Voltage:0.33KV
Power Rating: 1000 KVA
Connection Type: Dyn11/Yyno or others
Transformer Type: Dry Type Transformer
Standards: ANSI/IEEE, CSA/CAN, DOE

About 1000 kVA cast resin dry type transformer


In 2021, we delivered 2 units of 1000 kVA cast resin dry type transformer to our Canadian client for their medical facilities. These three phase dry type transformer have a primary voltage of 11kV, secondary voltage of 0.33kV, and a capacity of 1000 KVA. Their vector group is Yy0d11, with ANAF cooling. These cast resin dry type transformer primarily consist of iron cores and coils encapsulated in epoxy resin. Insulating sleeves are placed between the high and low voltage coils to enhance electrical insulation, supported and constrained by spacers. EverNew delivers tens of thousands of transformers of various types to global clients each year. Contact us for factory price, high-quality transformers.

Advantages of 1000 KVA Cast Resin Dry Type Transformer

Cast Resin Dry Type Transformer Series is a type of transformer characterized by low noise, low loss, and low partial discharge. This series of products feature reasonable structure, high-quality materials, scientific design, rigorous craftsmanship, advanced testing methods, and the following characteristics:

Explosion-proof, non-explosive, non-polluting, and no toxic gases.
High moisture resistance, capable of safe operation in harsh environments with 100% humidity without the need for dehumidification procedures.
Strong resistance to short-circuit.
Strong overload capacity, capable of operating at 110% rated load during AF, and 150% rated load.
Beautiful appearance, compact size, and low installation cost.
Performance and parameters meet or exceed GB, IEC, or industry standards.
Discover more about 1000 KVA Cast Resin Dry Type Transformers. EverNew, as a leading transformer factory in China, is eager to share further details with you

Dry Type Transformer – Insulation Class

Dry type transformers have three general insulation classes. The main characteristic of insulation is to provide dielectric strength and withstand certain thermal limits. The insulation classes are

European Standard (IEC 60076):

Class A: Maximum winding temperature of 105°C.
Class E: Maximum winding temperature of 120°C.
Class B: Maximum winding temperature of 130°C.
Class F: Maximum winding temperature of 155°C.
Class H: Maximum winding temperature of 180°C.
Class C: Maximum winding temperature of 220°C.
American Standard (ANSI/IEEE C57.12.01):

Class 105: Maximum winding temperature of 105°C.
Class 150: Maximum winding temperature of 150°C.
Class 220: Maximum winding temperature of 220°C.

Dry Type Transformer Core

ZTELECGROUP high-quality transformer cores crafted from Cold Rolled Grain Oriented (CRGO) steel. These silicon steel sheets undergo precision manufacturing processes, where automated machines cut them to the required dimensions. This meticulous approach minimizes air gaps, reduces excitation current, and lowers noise levels, ensuring optimal transformer performance.

To enhance durability and reliability, each laminated layer of the core is carefully insulated from one another. This insulation not only prevents electrical faults but also extends the lifespan of the iron core.

Our cores are stacked using a 45-degree stepped full tilt method, a technique that effectively reduces no-load current. This innovative approach to core stacking further enhances the efficiency and performance of our transformers.

Technical Characteristics of 1000 KVA Cast Resin Dry Type Transformer

ITEM DATA
Aplication photovoltaic
Type insulating mineral oil ,according to standard IEC 60296
Cooling method ONAN
Installation Outdoor / Indoor
Primary nominal voltage 34.5 KV (available 13.2KV, 13.8KV 15KV ,11KV..)
Secondary nominal voltage 800 V
Frequency 60 Hz
connection group Dyn11 Yn11 (secondary double winding)
Losses Reduced
Max. losses in empty (no load) BK36B036
Max losses in load BK36B036
Tapping changer ± 2 x 2.5% , manual
short-circuit impedance 0.06
class A
Corrosion C 4
Electrostatic screen between MT/BT Yes, connect to ground
DV/DT 500V /us
MT side connection by angled plug-in terminals
BT side connection through terminals on copper plate
Connection protections MT side metal drawer cover for outdoor IP55 (Optional)
Connection protections BT side IP55 metal outdoor cover drawer with cable glands for BT cable entry (optional)
Cuba oil collection and filter optional
wheels yes
lifting lugs yes
filling arrangement oil and drainage yes
communication and control DGPT2 digital output signals
product warranty ≥ 2 years










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