What certifications does the product have?

The product holds CE certification, and the company is certified under ISO9001:2015, ISO14001, and ISO45001:2018.

How is quality control managed?

We have 7 QA/QC inspectors performing 100% visual and function inspection on finished products with strict traceability of raw materials.

Durable Oil-Immersed Power Transformer for Reliable Performance 3.

Name: Durable Oil-Immersed Power Transformer for Reliable Performance 3.
Brand: Bokong Electric Co., Ltd.
SKU: 2215911835

Zhejiang, ChinaBokong Electric Co., Ltd.

US$200.00

1 Piece

Product profile

Customization

Available

Application

Power

Phase

Three

Model NO.

S11-M-160/10

Core

Core-type Transformer

Cooling Method

Dry-type Transformer

Winding Type

Two-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

Brand

Bokong / OEM

Transport Package

Wooden

Trademark

BOK

Origin

China

HS Code

8504210000

Production Capacity

5000 Pieces/Year

Key features

Fully Sealed Structure: Eliminates oil tank, prevents oil degradation and insulation aging, extending service life.

Low Noise & Loss: Uses imported cold-rolled silicon steel sheets to reduce no-load losses and operating noise.

High Conductivity: Windings made of oxygen-free copper ensuring good conductivity and stability.

Harmonic Reduction: Dyn11 connection group significantly reduces adverse effects of harmonics on the power grid.

Short-Circuit Resistance: Excellent design with low axial short-circuit force coils and high reliability support structure.

Full Customization: Supports customization from designs, samples, full customization, minor customization, and flexible options.

ISO Certified Manufacturer: ISO9001:2015, ISO14001, ISO45001:2018 certified with 14 years of export experience.

100% Quality Inspection: Finished products undergo 100% visual and function inspection by 7 QA/QC inspectors.

Company profile

Years of Export ExperienceImporters and ExportersHigh Repeat Buyers ChoiceExhibition Experience

Bokong Electric Co., Ltd.

Zhejiang, 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: 14 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤18h

AI-Powered supplier vetting

SummaryBokong Electric Co., Ltd. is a China-based limited company established in 2011 and located in Yueqing, Zhejiang. It is described as a technology-based enterprise engaged in the research, production, sales, and service of power transmission and transformation equipment rated at 35KV and below. Its offerings include transformer substations, switchgear, ring main units, and distribution cabinets. The supplier reports ISO9001:2015 and ISO14001:2015 certifications and 14 years of combined R&D engineer experience. Its products are stated to be used by domestic power companies, power stations, petroleum and chemical enterprises, factories, mining businesses, and real estate projects. An SGS audit record is provided with validity from July 10, 2025 to July 9, 2026, but the audit result is not interpretable from the coded value supplied. Outsourcing, inventory, overseas services, OEM/ODM, SDK, quality assurance, traceability, and related capabilities remain unknown. No financial data is included in this assessment.

Supplier typeThe supplier is identified as a limited company and a trade company in the manufacturing industry. Its stated operations include R&D, production, sales, and service of power transmission and transformation equipment rated at 35KV and below, indicating a combined trading and industrial-business profile.

CertificationsThe supplier reports ISO9001:2015 and ISO14001:2015 certificates. An SGS audit record is also listed as valid from July 10, 2025 to July 9, 2026, although the supplied coded audit result cannot be interpreted as pass or fail.

After-Sales capabilityThe supplier explicitly claims comprehensive after-sales service and says its products have received unanimous praise from users. However, no specific service process, response standard, service coverage, or overseas support capability is provided.

R&D capabilityThe supplier describes itself as technology-based, engaged in R&D, and continuously increasing technology investment. It also reports 14 years of combined R&D engineer experience, but specific new-product results, patents, or technical performance evidence are not provided.

Production capacityThe supplier states that it conducts production of power transmission and transformation equipment up to 35KV, and its primary products include substations, switchgear, ring main units, and distribution cabinets. Outsourcing procedures, manufacturing contracts, inventory capacity, and related operational capabilities are marked unknown, so production scale and fulfillment capacity cannot be fully evaluated.

Client casesThe supplier states that its products are used by domestic power companies, power stations, petroleum and chemical enterprises, factories, mining businesses, and real estate projects. These are described as industry applications, but named customers, project details, and verifiable case documentation are not provided.