Do you have products in stock?

Usually no. All our products are produced according to your order quantity.

What do I need to provide for a custom transformer?

It is better to provide technical drawings and technical specification documents, or you can tell us some detailed technical specifications date as shown below 'Information required for quotation and ordering.

Multi-Layer Insulation Structure S11 Series 125 kVA Oil Immersed Electric Transformer

Name: Multi-Layer Insulation Structure S11 Series 125 kVA Oil Immersed Electric Transformer
Brand: Jiangsu Pengtai Electric Co., Ltd
SKU: 2195752125

Jiangsu, ChinaJiangsu Pengtai Electric Co., Ltd

US$2,100.00

1-99 Sets

US$2,000.00

100-999 Sets

US$1,900.00

1,000+ Sets

Product profile

Customization

Available

Application

Power, Electronic, Instrument, Lighting, Rectifier, Audio

Phase

Single

Model NO.

S11 Oil-Immersed Transformer

Core

Core-type Transformer

Cooling Method

Oil-immersed Type Transformer

Winding Type

Separated Winding Transformer

Certification

ISO9001-2000, ISO9001, CCC

Usage

Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer

Frequency Characteristics

Power Frequency

Shape of Core

Product Name

Oil Immersed Transformer

Keywords

Oil Immersed Transformer

Model

S11-M-30 / S11-M-50 / S11-M-63 / S11-M-80 etc.

Rated Capacity (kVA)

30 - 2500

Link Group Label

Yyn0 or Dyn11

High Voltage

10 / 6.3 / 6 / 10.5 / 11

Low Pressure

0.4

No-Load Loss (W)

100 - 2290

Load Loss(W)120℃(F)

630 - 21200

No-Load Current(%)

0.4 / 0.5 / 0.6 / 0.8 / 0.9 / 1 / 1.1 / 1.2 / 1.3

Short Circuit Impedance(%)

4 / 4.5 / 5

MOQ

Low MOQ

Sample

OEM & ODM Custom

Logo Custom

Transport Package

Standard Shipping Packaging or Customized

Specification

Standard Specifications Or Customized

Trademark

PENG TAI

Origin

Jiangsu, China

HS Code

8504210000

Production Capacity

5000000set/Year

Key features

Fully Sealed Design: Eliminates oil storage cabinet; corrugated tank isolates oil from air to prevent aging and ensure maintenance-free operation.

Low Noise & Loss: Uses high-quality silicon steel sheets with full-slant step-joint stacking for reduced no-load loss and noise.

High Short-Circuit Resistance: Multi-layer cylindrical high-voltage winding and copper foil low-voltage winding provide strong mechanical strength.

Vacuum Insulation Process: Coils and core are vacuum-dried with vacuum oil injection for superior insulation and electrical strength.

Customization Available: Accepts OEM/ODM, logo customization, and flexible customization from samples or designs.

100% Quality Control: 100% inspection during manufacturing from raw materials to final products; each unit has 3C certificates.

Reliable Fastening: Anti-loosening nuts and non-hanging structure ensure stability during long-distance transportation.

Wide Capacity Range: Rated capacity ranges from 30 kVA to 2500 kVA with various voltage combinations and connection groups.

Company profile

High Repeat Buyers ChoiceODM ServicesProduct CertificationQuality Assurance

Jiangsu Pengtai Electric Co., Ltd

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: The team owns rich experience in exporting business. CertifiedNearest Port: Shanghai Port, Zhoushan Port, Qingdao PortAverage Response Time: ≤1.34h

AI-Powered supplier vetting

SummaryThe supplier operates across rectifier and inductor manufacturing, power electronic components, transformers, and intelligent transmission, distribution, and control equipment. It reports ISO9001, ISO14001, and ISO45001 management-system certifications, documented supplier-service procedures, corrective and preventive action procedures, and complaint-handling procedures with records. R&D evidence includes 10 engineers, new products within the past year, ODM availability, OEM service for known brands, and broad customization. Manufacturing resources include cutting, punching, bending, pressing, winding, casting, and furnace equipment, with documented finished-product inspection instructions. Financial information is present for multiple years, but the provided data does not establish financial strength without relying on monetary figures. No Fortune 500 cooperation is reported, while repeat-buyer preference is stated at 50%–80%.

Supplier typeThe supplier is a manufacturer and seller in the electrical-power sector, covering rectifiers, inductors, power electronic components, transformers, and transmission, distribution, and control equipment. The stated scope also includes technical services and regulated power-generation, transmission, and distribution activities subject to approval.

CertificationsThe supplier reports ISO9001:2015 and ISO14001:2015 certificates, while another record also lists ISO45001:2018 and ISO14001 management-system certification. Product compliance certification is recorded only as “Others,” so the evidence supports management-system certification but does not identify a specific product-standard certificate.

After-Sales capabilityThe supplier has clear procedures and followed records for handling customer complaints, as well as corrective and preventive actions related to service capability. Its stated end-to-end model includes after-sales service, providing direct evidence of a defined service process.

R&D capabilityThe supplier reports 10 R&D engineers, new-product activity within the past year, ODM availability, and OEM service for known brands. It also states that no SDK is available; this limits evidence for SDK-based development but does not negate the broader R&D evidence.

Production capacityThe supplier identifies manufacturing activities for rectifiers, inductors, and power electronic components, supported by laser cutting, board cutting, digital punching, bending, pressing, winding, casting, and furnace equipment. Finished-product inspection instructions are documented and uniformly followed.

Customization capabilityThe supplier explicitly provides customization from samples and designs, full and minor customization, and flexible customization. These capabilities are reported both for R&D design services and general design services, indicating broad customization coverage.

Product Q&A

Q:Are you a manufacturer, factory, or trading company?

We have our factory.

Q:What are your warranty terms?

We provide a 12-month warranty.

Q:What is the production time?

Generally it takes 4 to 6 weeks, depending on different styles.

Q:What are your payment terms?

T/T and L/C payments can be accepted.

Q:How do you do quality control in your factory?

We implement 100% quality control inspection to ensure that each product is qualified. We have more than 10 quality control inspections during the manufacturing process from raw materials to final products. Each of our units has 3C certificates. If you need any other certificates, we can help you apply for them.