What certifications does the company hold?

The company holds ISO9001:2015, ISO14001, and ISO45001:2018 certifications.

What is the minimum order quantity?

The minimum order quantity is 1 set.

S20 Low Loss Transformer: Optimal Energy Efficiency Solutions

Name: S20 Low Loss Transformer: Optimal Energy Efficiency Solutions
Brand: Bokong Electric Co., Ltd.
SKU: 2220974645

Zhejiang, ChinaBokong Electric Co., Ltd.

US$200.00

1 Piece

Product profile

Customization

Available

Application

Power, Electronic, Instrument

Phase

Three

Model NO.

S20

Core

Core-type Transformer

Cooling Method

Oil-immersed 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

Warranty

1 Year

Efficiency

99%-99.99%

Rated Capacity (kVA)

30 - 2500

Service Life

More Than 20 Years

Low Voltage

0.4kv

High Voltage

10kv

Transport Package

Wooden

Specification

520KG

Trademark

BOK

Origin

China

HS Code

8504210000

Production Capacity

2000pieces/Year

Key features

High Energy Efficiency: Meets national second level energy efficiency standards with 10% lower losses than S13 series.

Advanced Core Material: Uses 23ZH80 high magnetic conductivity grain oriented silicon steel sheets to reduce losses.

Fully Sealed Structure: Corrugated tank design isolates air, delays insulation aging, and extends service life.

Low Noise Operation: Optimized magnetic and mechanical structures significantly reduce operating noise.

High Short-Circuit Resistance: Low axial short-circuit force coil structure enhances withstand capacity.

Flexible Customization: Supports full customization, minor customization, and customization from designs or samples.

Comprehensive Quality Control: 100% visual and function inspection with traceable raw materials.

Fast Lead Time: Average lead time within 15 workdays for both peak and off-peak seasons.

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:What are the energy efficiency standards met?

The S20 transformer meets national second level energy efficiency standards, reducing no-load and load losses by about 10% compared to the S13 series.

Q:What material is used for the transformer core?

It utilizes 23ZH80 high magnetic conductivity grain oriented silicon steel sheets to significantly reduce hysteresis and eddy current losses.

Q:How does the transformer extend its service life?

The fully sealed corrugated tank structure automatically adjusts oil volume to isolate air, delaying insulation aging.

Q:Is customization available for this product?

Yes, we offer full customization, minor customization, and customization from designs or samples.

Q:What is the average lead time for orders?

The average lead time is within 15 workdays, regardless of whether it is peak or off-peak season.