6kV 10kV 20kV 35kV Cast Resin Insulation Power Transformer

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$550.00 - $1,982.00 / Piece | 1 Piece/Pieces (Min. Order)
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Quick Details
Place of Origin:
Guangdong, China
Brand Name:
Model Number:
Power, Power
Coil Structure:
Coil Number:
Product Name:
6kV 10kV 20kV 35kV Cast Resin Insulation Power Transformer
Quality warranty:
18 months after arrival the destination
IEC 60076-11:2004
ISO 9001:2015
Used Place:
Vacuum casting
Full enclosed
Guangzhou Huangpu
Supply Ability
Supply Ability:
20000 Unit/Units per Year
Packaging & Delivery
Packaging Details
All our goods are packed in wooden cases, with foam inside for protection. And we have a team who is in charge of packing. The team consists of our skilful carpenters and experienced packing designers. These enable our packing reasonable, safe and reliable.
Guangzhou Huangpu Port
Product Description

  6kV 10kV 20kV 35kV Cast Resin Insulation Power Transformer


1. Application

1). Our power transformers are especially suitable for installation in draw-out type or fixing type switchgears as well as for power plants, substation, self-consumption transformers, power distribution, transmitter system, earthing system, community power supply system, subway, or those places where small space, fire-control, moisture-proof, are needed. Those up to 10kV can be installed in 650 ~ 1200 mm wide switchgear, up to 20kV in a 1000mm wide switchgear and 35kV in 1400 ~ 1600 mm wide switchgear.

2).Our series reactors are suitable for a power system of 6~10kV.They are connected serially with high voltage parallel capacitor group to depress a wave deformation in the system.


2.Technical Parameters

i) For Power Transformer:

1).Rated Primary Voltage: 6kV up to 35kV

2).Rated Secondary Voltage: 0.4kV

3).Rated Capacity: 3kVA up to 2500kVA

4).Rated Short-time P. F. Withstand Voltage (r.m.s.) (kV): 20, 25, 35, 50, 70

5).Rated Lightning Impulse Withstand Voltage (Peak) (kV): 60, 75, 125, 170

6).Phase No.: single phase or three phases

7).The Highest Temperature Rise of Windings: 100K

8).Insulation Class: F

9).Cooling Mode: AN or FN

10).Enclosure Protection: IP00, IP20 or custom specified

11).Connection Symbol: Yyn0, Dyn11or II0 or custom specified

12).HV Tapping Range (%): ±5 or ±2×2.5


ii) For Series Reactor

1).System Rated Voltage (kV): 3kV up to 35kV

2).Rated Capacity: up to 1200 kVar

3).Rated Current: up to 4000A

4).Rated Voltage For Capacitor (kV): 6.6√3, 7.2√3, 11√3, 12√3

5).Rated Frequency: 50Hz (60Hz on request)

6).Installation: indoor or outdoor

7).Series Reactor Number for Each Phase: 1

8).Insulation Class: F

*Except for the technical parameters list above, we can design as per clients’ requirements.

3. Main Features

1).Low loss, low noise, high operation efficiency
2).High ability of protection against short circuit

3).High mechanical strength  
4).Pre-galvanized steel frame, flame-resistant, against corrosion

5).With outstanding fire-proof capability: the epoxy resin is difficult to flame and self-extinguished. So it won’t lead to the second disasters, such as an explosion.

6).Cast epoxy resin with high dielectric strength 18~22kV/mm in vacuum process

7).Superior in environmental performance: the epoxy resin is very stable, moisture-proof and dust-proof. It enables dry-type power transformers to run with high reliability under abominable environment.

8) With theimpeccable temperature control and indicating system, dry-type power transformers can be maintenance free. And this offers a great reduction of operation cost.

9).With small volume, light and convenient for installation and alignment

10).No need of a separated room

4. Materials

1).Insulation Material: epoxy resin

2).Winding Material: Aluminum wire or high quality enameled copper wire (foil winding is available for power transformer)

3).Core: core lamination, low loss, cold rolled grain oriented silicon steel


5. Types of Our Reactors:

1).Dry-type Air Core Reactors, including: Dry-type Air Core Series Reactors, Dry-type Air Core Current Limiting Reactors and Dry-type Air Core Shunt Reactors.

2).Core-type Reactors, including: Core-type Series Reactors, Core-type Start-up Reactors, Core-type Shunt Reactors, Arc Suppression Coils, Core-type Earthing Transformer and Filter Reactors and so on.


6. Manufacturing Standard

1) Power transformer: IEC60076-11:2004, GB1094.11-2007, GB/T10228-2008

2) Series reactor: IEC60076-6:2007, GB/T 1094.6-201


7. Technical Parameters for DC-6~35 power transformers please see Table 1~2


Table 1

Voltage Class


Rated Short-time P.F. Withstand Voltage (r.m.s.)


Rated Lightning Impulse Withstand Voltage (Peak)




20 (or 25)


Declare clearly the withstand voltage in the parenthesis if needed while ordering, otherwise the products of 20kV or 28kV withstand voltage will be supplied.











Table 2

Rated Voltage (kV)

Rated Capacity


Connection Symbol

The Highest Temperature Rise of Windings


Insulation Class

Cooling Mode














Class F



Notes: Detailed technical data and outline drawing are provided upon request.




ABB Excellent Supplier

Our company is one of the excellent suppliers for high voltage products business unit of China.

Certificate of Measurement system

Our company has satisfied the requirements of Measurement Assurance System standards.

GOST Certificate

Our products had gained the GOST certificate and can enter the Russia market.



1. Matching different sizes switchgears for voltage metering and protection or for control-circuit supply.

2. Power plant and power station.

3. All kinds of industrial area, such as factories, coal mine, subways and so on.

4. They also can be used in communities.

5. Especially suitable for medium voltage witchgears. image 

Packaging & Shipping


For the low voltage products:

5 -10 days

For the medium voltage products:

10 -15 days

For the high voltage products:

20 -30 days


T/T or L/C




Wooden case

We have a team who is in charge of packing.

The team consists of our skilful carpenters and experienced packing designers.

These enable our packing reasonable, safe and reliable. 


Our Services

• Your inquiry related to our product & price will be replied within 24 hours.

• Well-trained & experienced staff are to answer all your inquiries in English of course.

• Working time: 8:00am ~17:45pm, Monday to Saturday.(UTC+8)

• Provide perfect after-sale service, if you got any question, please contact with us and we will solve  

   your problem immediately.

• We have our own transportation department, goods can be delivered on time whenever they are ready.

• Your business relationship with us will be confidential to any third party.

Company Information