11kV Cast Resin Vacuum Impregnation Single Phase Electrical Transformer

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1 Piece/Pieces (Min. Order)
Supply Ability:
500 Set/Sets per Month
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Quick Details
Place of Origin:
Guangdong, China (Mainland)
Brand Name:
Model Number:
11kV Cast Resin Single Phase Electrical Transformer
Rated Primary Current:
15-2000 A
Insulation Materials:
epoxy resin
less than 1000m
Number of Windings:
Rated Insulation Level:
Installation Type:
Post type
Service Condition:
Manufaturing Standard:
IEC61869-1:2007, GB1208-2006
Packaging & Delivery
Packaging Details
11kV Cast Resin Vacuum Impregnation Single Phase Electrical Transformers are packed in wooden cases, with foam inside for protection
Delivery Time
8-10 days

11kV Cast Resin Vacuum Impregnation Single Phase Electrical Transformer

11kV Cast Resin Vacuum Impregnation Single Phase Electrical Transformer Description

 Gugangdong Sihui Instrument transformers have strong wihstand of thermal shock, overload capbility, low partial discharge, low noise. Therefore, our transformers sell well on the market. We a have wide variety of options, such as current transformers, voltage transformers, dry-type power transformers, transducers, reactors an all kinds of trucks for switchgear. Transformers are rated from 6kV up to 550Kv, which can be applied to indoor and outdoor condition. They are widely used in various switchgears of power grid, power plants, substation, railway and so forth.


11kV Cast Resin Vacuum Impregnation Single Phase Electrical Transformers Specifications

1) Rated Primary Current: up to 8000A

2) Rated Secondary Current: 1A or 5A

3) Rated Primary Voltage: 0.66kV up to 1000kV

4) Thermal Burden Value: up to 200VA or custom specified

5) Insulation Material: epoxy resin, oil or gas SF6

6) Winding: high quality enameled copper wire

7) Frequency: 50Hz or 60Hz

8) Accuracy Class: 0.2, 0.5, 10P10, 10P, 3, 0.2S, 0.5S, PR, PX and PTS and so on

9) Installation Place: indoor or outdoor

10) Multi windings, up to 3 windings or more 

Technical Parameters Table

Rated Primary Current In (A)

Accuracy Class

Rated Output at Relative Accuracy Class of

Common Twin Secondary Windings,

cosΦ=0.8 (lag)(VA)

Rated Short-time Thermal Current Ith


Rated Dynamic Current Idyn (Peak) (kA)

Rated Insulation Level



Cl. 0.2S

Cl. 0.2


Cl. 0.5

Cl. 5P





5P10 (15/20)

10P10 (15/20)





















Single accuracy

and twin transformation ratio








1 Those listed in the table above are the routine parameters, if there is any different parameter required, we can design it according to the technical parameters of the clients.

2 Detailed technical data and outline drawings are provided upon request. 

Knowledge on transformer: 

Cast coil transformers have windings (the primary one and the secondary one) that are solidly-cast in resin with the vacuum process. This manufacturing process guarantees the transformer windings covered in a strong epoxy resin with a high dielectric strength. It also protects the device from harsh or severe operating environments with high electrical demands. Cast coil transformers are well-suited for applications that require long service life and little maintenance. They represent a cost-effective alternative to medium-voltage, liquid-filled transformers that may pose environmental concerns and incur increased insurance costs. Specifications, materials of construction, application requirements, and certifications are important parameters to consider when these electrical and electronic components. Cast coil transformers also differ in terms of enclosure type, and provide features such as forced-air cooling.

Product specifications for cast coil transformers include primary voltages, secondary voltages, basic impulse level (BIL), and temperature rise. The primary voltage is applied to the terminals of the primary winding, the part of the transformer that is connected to the energy source. With cast coil transformers, primary-voltage values may range from 600 V to 35 kV.

Packaging & Shipping

1 Busbar Type Single Phase High Frequency Electrical Transformers are packed with wooden packages, and must always stand up according to the direction mark of the packages (except for the 220kV current transformers, they are always packing and transport by lying down).

2 You must remove the wood plates of the top and obverse when you open the package, and then dismantle the 4 pcs M16 bolts which fix in the frame of the package, lift up the voltage transformer vertically and slowly from the package.

3 The clients must check the packages when they receive the voltage transformers, if a package has been broken, they must open the package to check the product together with the forwarder, note down the process and send to the manufacturer. 

Our Services

 Pre-sale Service

Quick response: We promise to quote you the best price within 24h.

 Professional customized design: We have a professional team to meet any of your requirements. 

Service During Sale

Any consultation about the production progress, delivery time and other kind of products will be received warmly and timely. 

After-sale Service 

Good after-sale service: Any consultation and problem will be received warmly.

18-month warranty: Product can be repaired, returned and exchanged if problem occurs within warranty period. 

To serve you better, please furnish the following information when you are willing to choose the current transformer.

Type of Product:

Number of Phase: Single/Three


Rated Voltage:

Rated Voltage Ratio:

Highest Voltage:

First Winding:

Second Winding:

Rated insulation level: According to IEC60044-1:2003

Insulating Material: Epoxy resin

Service Condition: Indoor/Outdor 

Company Information

Founded in 1988, we have 26-year experience in producing current transformers, voltage transformers, dry-type power transformers, transducers, reactors an all kinds of trucks for switchgear.We have a perfect production line: parts machining- molding- winding- casting- testing. All our products start from a screw! 

Our products have been applied to many key projects of the nation, such as Beijing Olympic Games project, Beijing Capital airport and Jiuquan Satellite Launch Center. We are one of the long-term suppliers of ABB Co. Ltd. We can supply the best quality products with favorable price for you. If you are interested in our products, please don't hesitate to contact us!


1.  Do you provide products for world renowned companies?

     We are one of the suppliers of ABB Groups and Schneider. 

2. What are your main markets?

    Our main markets are Asia, Europe, America and Australia. 

Why US?

1. A wide range of options to meet virtually any needs

2. The financial stability and resources of a global manufacture

3. The quality assurance of an ISO-certified vendor

4. The delivery of expert service at a lower cost



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