Oil Immersed Powertransformer 30kVA-2500kVA Three-Phase Insulated Distribution Transformer

Name: Oil Immersed Powertransformer 30kVA-2500kVA Three-Phase Insulated Distribution Transformer
Brand: Bokong Electric Co., Ltd.
SKU: 2316412875

Zhejiang, ChinaBokong Electric Co., Ltd.

US$200.00

1 Piece

Product profile

Customization

Available

Application

Electronic

Phase

Three

Model NO.

S11

Core

Core-type Transformer

Cooling Method

Oil-immersed Type 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

Warranty

1 Year

Efficiency

99%-99.99%

Service Life

More Than 20 Years

Rated Capacity (kVA)

30 - 2500

Transport Package

Wooden

Specification

520KG

Trademark

BOK

Origin

China

HS Code

8504210000

Production Capacity

2000pieces/Year

Key features

Oil insulation and cooling technology helps dissipate heat efficiently and supports stable transformer operation.

Three-phase design provides stable voltage conversion and reliable power distribution for various electrical systems.

High-quality insulation materials improve dielectric performance and help ensure safe long-term operation.

Available from 100kVA to 1250kVA to meet different power distribution and industrial requirements.

Suitable for industrial facilities, commercial buildings, power distribution networks, and renewable energy projects.

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.

Product Q&A

Q:1. What capacity range is available for this oil immersed transformer?

The transformer is available from 100kVA to 1250kVA, providing flexible capacity options for different power distribution requirements.

Q:2. What are the advantages of oil immersed cooling?

Transformer oil provides both insulation and heat dissipation, helping control operating temperature and maintain stable performance during continuous operation.

Q:3. Is this transformer suitable for three-phase power systems?

Yes. The three-phase design is suitable for industrial, commercial, and utility power distribution systems requiring reliable voltage transformation.

Q:4. Where can this oil immersed distribution transformer be used?

It can be used in industrial facilities, commercial buildings, power distribution networks, renewable energy projects, and other medium-voltage applications.

Q:5. How does the transformer ensure reliable long-term operation?

The transformer uses an oil-insulated structure and durable insulation materials to provide reliable dielectric performance and stable operation under normal working conditions.