High Capacity 1250/1600/2000/2500kVA 10kv Oil Immersed Transformer

• Customization: Available
• Application: Power, Electronic
• Phase: Three
• Model NO.: S11-M
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Multi-winding Transformer
• Certification: ISO9001-2000, ISO9001
• Usage: Power Transformer, Distribution Transformer
• Frequency Characteristics: 50Hz
• Shape of Core: OD
• Brand: Zhengwei
• Transformer Oil: Transformer Oil No.25
• Certificate: ISO 9001
• Color: Grey
• Transport Package: Wooden Case or Pallet
• Trademark: Zhengwei
• Origin: China
• HS Code: 8504220000
• Production Capacity: 3000 Sets/Month

Product Description

Product Description
S11-M-30~2500/20-10 fully sealed oil-immersed transformer is suitable for AC 50Hz, rated working voltage 10kV, 20kV and below power system, as petroleum, metallurgy, chemical, textile, light industry and other enterprises and large dust places of the distribution transformer.
Product Parameters
Custom Compact 1000kVA 20kv Oil Immersed Transformer
Iron core
The core is cold rolled silicon steel sheet with high permeability magnetic grain orientation. The iron core is a core type iron core, the full oblique joint stacking type iron core, the iron core column is a multi-step circular cross-section, the iron bar and the iron core are equal cross-section.
winding
The winding adopts corrugated oil channel, no paint dipping process, and tight tape binding; The windings are concentric coils: the high voltage winding has a tap required for the tap voltage, which is led to the tap switch, the switch is installed on the box cover, and the voltage transfer of 10kV and 20KV can be achieved after the power is cut off, and the tap voltage is changed.
Safety protection device
30~2000kVA transformer equipped with pressure relief valve:
Gas relays with alarm and tripping terminals can be installed according to user requirements;
We are pleased to present our latest energy efficient power transformer - the oil immersed transformer. Developed and produced by our company,this fully sealed transformer uses cutting-edge technology to provide superior performance and numerous benefits to our customers.

One of the main advantages of our range of oil-immersed transformers is low loss and high efficiency. Through careful engineering and design, we have significantly reduced energy waste during the renovation process. This results in significant savings in power consumption, making our transformers ideal for energy efficient customers. By choosing our energy efficient transformers, businesses can not only reduce their carbon footprint, but also achieve significant cost savings in the long run.

In addition to saving energy, our line of oil-immersed transformers has an impressive array of features that enhance their overall performance. First, these transformers are designed to operate with minimal noise output. Noise reduction is achieved through advanced insulation materials and professional construction technology to ensure a quiet and comfortable working environment.

In addition, our fully sealed transformers are designed to prevent moisture and fire. By eliminating the need for oil storage tanks, we improve the overall safety and reliability of transformers. The elasticity of the corrugated plates in the tank compensates for changes in the amount of oil and prevents air contact, reducing the risk of oil deterioration and insulation aging. This innovative design not only improves the service life of the transformer, but also reduces the need for regular maintenance, thereby saving costs and improving operational efficiency.

By investing in our range of oil-immersed transformers, customers can rest assured that they are sourcing high quality products that meet the strictest industry standards. Our transformers are manufactured from the best materials and subjected to rigorous testing to ensure optimum performance and durability. We take pride in our commitment to delivering exceptional products that exceed our customers' expectations.

In short, our oil-immersed transformer series represents a breakthrough in energy efficient power transformation technology. With low loss, high efficiency, moisture and fire resistance, our transformers offer a wide range of benefits to businesses in a wide range of industries. By choosing our transformers, customers can achieve significant energy savings, reduce pollution, and enjoy greater reliability and operational efficiency. Experience the difference with our range of energy-efficient oil-immersed transformers - a reliable choice.
 
Structural Installation

 Technical Parameters

Transformer Routine Test Record

Model

S11-M

No

T2304087

Phase

3

Capacity

2500

KVA

Frequency

50

HZ

Oil Weight

510

kg

High voltage

10000

V

High voltage current

144.34

A

Body lifting weight

2750

kg

Low voltage

400

V

Low voltage current

3608.44

A

Total weight

3900

kg

National regulations standard data

No-load loss(W)

On load loss(W)75ºC

No-load current

Impedance voltage

2290

+15%

21200

+15%

0.4

+30%

5

±10%

I. Transformation Ratio Measurement

Tapping position

High voltage(V)

Low voltage(V)

Voltage ratio

Maximum error percentage%

1

10500

400

26.250

0.02

2

10250

25.625

0.06

3

10000

25.000

0.03

4

9750

24.375

0.04

5

9500

23.750

0.07

6

7

II. Insulation Test

Room Temperature

18

ºC

Item Test Wiring

Insulation  Resistance (MΩ)

Power Frequency Withstand Voltage(kV)

15s

60s

Absorption Ratio

Test Voltage

Test Time

Result

High Voltage - Low Voltage and Earth

>2500

35

60s

Passed

Low Voltage - High Voltage and Earth

>2500

5

60s

Passed

High Voltage - Low Voltage and Earth

>2500

/

/

/

III. Connection Group Measurement

Measurement Side       Power Supply Side

+     -              a     b

+     -              a     b

+     -              a     b

Group

DC Method +   -              A   B

D.yn11

AC Method (V)

UBb

UBc

UCb

IV. Coil DC Resistance Measurement

+

18

ºC

Phase Tap

High Voltage Side(Ω)

Low Voltage Side(mΩ)

AB

BC

CA

an

bn

cn

1

0.2291

0.2294

0.2290

2

0.2237

0.2238

0.2235

3

0.2174

0.2177

0.2174

0.2607

0.2634

0.2663

4

0.2117

0.2123

0.2119

5

0.2049

0.2051

0.2048

V. Loss Measurement

No-load Loss

2308

W

No-load Current

0.42

%

Load Loss (75ºC)

22595

W

Impedance Voltage(75ºC)

4.99

%

VI. Transformer Oil Chemical Test

Specific Gravity

0.9 g/cm²

Viscosity

<11.6

Acid Value

0.002KOHmg/g

Ash Content

-

Color

-

Flash Point

>143ºC

Withstand Voltage

55KV/2.5mm

Oil Number

Domestic No. 25

VII. Induced Voltage Withstand Test

Frequency

Low Voltage Test Voltage

Test Time

Result

150HZ

800V

60s

Passed

This product's test complies with GB1094.1.2, GB1094.3, GB1094.5 standards and technical conditions GB/T 6451 regulations, and is allowed to leave the factory.

Test Operator

Auditor

Test Supervisor

Packaging & Shipping

 

Company Profile

 



ABOUT US 

Jiangsu Zhengwei Electric Power Equipment Co., Ltd. was established in November 2017. It is a professional oil-immersed transformer manufacturer and dry-type transformer manufacturer. It is mainly engaged in the production, manufacturing, scientific research and development of power transformers, box-type substations, high and low voltage switch cabinets and supporting products. A modern enterprise integrating product sales, the company is located in the Economic Development Zone of Pizhou City, Jiangsu Province.

The company covers an area of nearly 100 acres, with a registered capital of 60 million yuan. It currently has more than 80 employees and nearly 10 engineers. The company relies on domestic advanced technology, production and testing equipment, and adopts computer-aided design in accordance with the operating standards of the ISO9000 quality certification system. Provide customers with environmentally friendly, energy-saving, low-carbon high-quality products that meet the characteristics of each region to meet the fundamental requirements of the market and different customers.The company's existing factory area is more than 15,000 square meters, with 20 winding machines, 5 foil winding machines, 4 ovens, 2 vacuum pouring tanks, and more than 20 sets of other production and inspection equipment; high-precision CNC bending machines, There are more than ten sets of CNC shearing machines, busbar processing machines, laser cutting machines, etc.; first-class software and hardware facilities have laid the foundation for the company to create high-quality products.The company currently produces S11 and S13 series 10KV, 20KV,35KV,110KV and 220KV oil-immersed transformers; SCB10 and SCB13 series 10KV, 20KV and 35KV epoxy cast dry-type power transformers; SH15 and SCBH15 amorphous alloy power transformers. Transformers; complete sets of high and low voltage products include YB prefabricated substation, ZGS type combined substation, KYN61-40.5 type, KYN1-12 type, KYN28A-12 type, HXGN type, GG-A type and other high voltage series, GGD type, MNS type ,, GCK type, GCS type, XL type, frequency conversion distribution cabinet and power automation device, etc., more than ten series and more than twenty varieties. The products passed the quality inspection of the National Transformer Quality Supervision and Inspection Center and the National Medium and Low Voltage Transmission and Distribution Equipment Quality Supervision and Inspection Center, and obtained the registered model registration certificate.

At the beginning of the company's establishment, its products have now begun to be sold in the national market and have gained good reputation from customers. The company's marketing network and service network have been improved and will be further expanded to domestic and foreign markets. The company implements "housekeeper service" and implements a consistent quality management system for the company's products. With annual free replacement, three-year warranty, and lifetime warranty after-sales service policy, we actively provide customers with timely, warm and thoughtful services to enhance product utilization value and value-for-money services.

 
FAQ
1.Are you a trading company or a manufacturer?

We are a professional factory with 10 years of experience in the field of high and low voltage switch gear and substation. Transformers, cables, distribution boxes and various electrical equipment, such as vacuum circuit breakers, load breaking switches, etc. Our factory is an excellent supplier of the State Grid Corporation of China.

2.Do you accept custom service?
We provide OEM/ODM services, according to your drawings and parameters, our professional technical and national team can provide satisfactory solutions.

3.What is your minimum order quantity?
Our minimum order quantity is 1 piece.

4.What is your lead time?
It depends on your product requirements and quantity. It usually takes 5-15 working days.

5.How do you solve quality problems?
Please provide detailed photos and information of the quality problem. Our technical and quality inspection departments will do a good analysis. We'll come up with a satisfactory solution within two days.

6.What are your terms of payment?
T/T or LC at sight.