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S11 30kVA 10kV 400V Medium High Voltage Three Phase Oil Immersed Distribution Transformer

5 0 Reviews
Number of Phase:Three Phase
Winding Type:Two Winding
Winding Material:Aluminum / Copper
Rated Capacity:30kVA
High Voltage:6/10/11kV
Low Voltage:0.4kV
Tapping Range:±2×2.5%
Impedance Voltage:4%
No-Load Loss:0.1kW
Load Loss (75°C):0.63/0.6kW
No-Load Current:1.5%
Frequency:50/60Hz
Connection Group:Yyn0 / Dyn11
Cooling Method:ONAN
Insulation Class:A
Climatic Class:C2
Environmental Class:E2
Operation Altitude:≤1000m
  • S11-M-30/10

  • SHENGTE

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This three phase oil immersed transformer relies on transformer oil for its main insulation and cooling needs. It delivers steady heat dissipation along with solid electrical performance. As an oil immersed distribution transformer, it uses a fully sealed structure. This setup separates the transformer oil from outside air. In turn it lowers oxidation and moisture entry. The approach turns the oil immersed power transformer into a safer choice that stays reliable over time. It also becomes simpler to maintain during long-term use. Projects needing a 10kV oil immersed transformer, 30kVA oil immersed transformer, or S11 oil immersed transformer gain a useful option for smooth power distribution. As a professional three phase transformer manufacturer, SHENGTE provides steady three phase transformer solutions for industrial, commercial, and utility applications.


Features:

1. Cylindrical Winding Structure: The high-voltage and low-voltage windings of this three phase oil immersed transformer generally adopt a cylindrical structure, helping ensure balanced ampere-turn distribution and stable electrical performance.

2. Vacuum Drying Process: The coil and core of the oil immersed power transformer are vacuum dried, while the transformer oil is filtered and injected through a vacuum process. This improves insulation strength and supports reliable operation for a 10kV oil immersed transformer or 30kVA oil immersed transformer.

3. Corrugated Oil Tank: The oil tank of the S11 oil immersed transformer uses corrugated plates, which can compensate for oil volume changes caused by temperature variation. This structure helps the oil immersed distribution transformer maintain safer and more stable operation.

4. Stable Power Distribution: This three phase transformer is designed for reliable power distribution in industrial, commercial, and utility applications. As a practical oil immersed distribution transformer, it helps deliver stable voltage transformation and long-term operating performance.

S11-1

Our Advantages:

1. The spiral coil with longitudinal oil duct, has the performance of good heat dissipation, low magnetic leakage, high mechanical strength; And the reliable supporting structure can greatly improve the short circuit withstand ability.

2. The iron core adopts the stacked structure, it is composed of the silicon steel sheets with thickness less than 0.35mm and high magnetic conductivity, which can reduce the no-load loss and no-load current of the transformer.

3. The insulation materials have high heat resistance, which can withstand overvoltage and overcurrent during operation.

4.The transformer oil has low viscosity, good heat transfer performance and insulation performance, which can effectively protect the iron core and winding, reduce the aging of the insulation materials, and extend the service life of the transformer.

5. The corrugated oil tank is manufactured from high-quality cold-rolled steel plates on a dedicated production line, its surface is treated with deoiling, rust removal, and phosphating before being coated with a three proof (rain proof, moisture proof, and salt spray proof) paint, which can enhance operational reliability and durability, reduce the maintenance costs.

6. The sealing rings are made of the high-quality rubber materials, which can effectively slow the aging process, isolate the external air and prevent the transformer oil leakage.


S11 Advantage


S11 Structure


Product Parameters


Model Description S11

Model Rated Capacity (KVA) Rated Voltage (KV)

Connection

Method

No-load Loss

(W)

Load Loss

(W)

No-load Current

(%)

Short Circuit

Impedance

(%)

High Voltage Voltage Regulation Range

Low Voltage

S11-M-30 30


6

6.3

10

10.5

11

±5%

±2×2.5%

0.4

Yyn0

Dyn11

100 630/600 1.5 4

S11-M-50

50 130 910/870 1.3 4

S11-M-63

63 150 1090/1040 1.2 4

S11-M-80

80 180 1310/1250 1.2 4

S11-M-100

100 200 1580/1500 1.1 4

S11-M-125

125 240 1890/1800 1.1 4

S11-M-160

160 280 2310/2200 1 4

S11-M-200

200 340 2730/2600 1 4

S11-M-250

250 400 3200/3050 0.9 4

S11-M-315

315 480 3830/3650 0.9 4

S11-M-400

400 570 4520/4300 0.8 4

S11-M-500

500 680 5410/5150 0.8 4

S11-M-630

630 810 6200 0.6 4.5

S11-M-800

800 980 7500 0.6 4.5

S11-M-1000

1000 1150 10300 0.6 4.5

S11-M-1250

1250 1360 12000 0.5 4.5

S11-M-1600

1600 1640 14500 0.5 4.5

S11-M-2000

2000 1940 18300 0.4 5

S11-M-2500

2500 2290 21200 0.4 5

S11-M-3150

3150 2730 24300 0.4 5

Drawing S11


Production Process


Production Process S11


Company Profile


Guangdong Shengte Electric Co., Ltd., based in Foshan, China, is a distinguished transformer manufacturer known for reliability and exceptional after-sales service. With over a decade of experience, we've provided high-quality, cost-efficient transformers for governmental and private sector projects worldwide, earning a reputation for excellence.
Our commitment to quality is demonstrated by meeting the rigorous standards of our German Power Utility clients, ensuring only the highest quality solutions.
Spanning 10,000 square meters, our Foshan facility is equipped with cutting-edge production and testing equipment, enabling us to offer customized solutions, including OEM and ODM services. Our product range includes oil-immersed transformers, resin cast dry-type transformers, pad mounted transformers, prefabricated substations, and more.
Certified by ILAC-MRA and CNAS, our IEC certificate underscores our dedication to international quality standards. Additionally, we hold ISO9001, CE, and Innovative Product Certifications, with active pursuit of the UL certificate to further demonstrate our commitment to global compliance.

Company

Factory


Certifications


Certification


Project Cases


Case

Customer


Exhibition


Exhibition


Packaging & Shipping


Packing & Delivery


FAQ


Q1: Are you a manufacturer or trading company?

A1: Our factory covers an area of over 10000m2, we can produce 2000 more transformers each year.


Q2: Do you have the relevant certifications and test reports?

A2: Yes, we have ISO9001 and CE certification, and can provide the test reports according to IEC standard.


Q3: How long is the warranty period?

A3: It is 12 months.


Q4: Would you accept using customer's logo?

A4: Yes, we can provide OEM and ODM service.


Q5: What's the MOQ?

A5: It is 1 set.


Q6: What are the payment methods and terms?

A6: We accept T/T, Western Union, PayPal, etc. 30% advance payment before production, 70% balance payment before delivery.


Q7: How long is the delivery time?

A7: Generally it is 20-30 days, it depends on the order quantity.


Q8: What is the standard of package?

A8: Wooden case or special package according to customer's requirement.


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Guangdong Shengte Electric Co., Ltd. is located in Danzao Town, Nanhai District, Foshan City.

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