What is the standard packaging?

Usually, we use strong plywood cases for protection.

What are the main advantages of this transformer?

It features high efficiency, low loss, improved anti-short circuit capability, and reliable transport due to new hoisting structures.

What is the minimum order quantity?

The Minimum Order Quantity is 1 Set.

High-Efficiency 11kv Oil Immersed Power Transformer for Industrial Use

Name: High-Efficiency 11kv Oil Immersed Power Transformer for Industrial Use
Brand: Wenzhou Rockwill Electric Co., Ltd.
SKU: 683419192

Zhejiang, ChinaWenzhou Rockwill Electric Co., Ltd.

US$1,500.00-15,000.00

1 Piece

Product profile

Customization

Available

Application

Power

Phase

Three

Model NO.

Core

Core-type Transformer

Cooling Method

Oil-immersed Type Transformer

Winding Type

Two-winding Transformer

Certification

ISO9001

Usage

Power Transformer

Frequency Characteristics

Power Frequency

Shape of Core

Ring

Brand

Rockwell

Color

Gray, Green or Customized

Material

Oil, CRGO, Copper

Transport Package

Wooden Packing

Specification

IEC/ANSI/IEEE/BS/GB

Trademark

Rockwell

Origin

Zhejiang, China

HS Code

8504231100

Production Capacity

20000

Key features

High Efficiency & Low Loss: S11 series reduces no-load loss by 30% and current by 70-85% compared to S9 series.

Durable Copper Windings: Uses oxygen-free copper lines with lower resistivity for better electric performance and load loss.

Customizable Appearance: Color is available in Gray, Green, or Customized options.

Robust Core Design: Core made of high-quality cold-rolled silicon-steel plate with spiral coil and longitudinal oil path.

Extended Service Life: Double the product service life, capable of working long periods even under 20% overloads.

Reliable Cooling System: Corrugated tank replaces tubing for better interior cooling and enhanced running reliability.

OEM Service Available: OEM logo and customization available for orders with good quantity.

ISO9001 Certified: All materials pass quality testing and national standard ISO9000 inspection.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceExperienced Team

Wenzhou Rockwill 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: 16 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤18h

AI-Powered supplier vetting

SummaryThe supplier is a limited company offering switchgear, compact substations, high- and low-voltage equipment, and transformers. It reports four production lines, 21–30 quality-control staff, one-month lead times in both peak and off-peak periods, and export experience of 16 years with exports representing 51%–70% of sales. It provides broad customization, ODM, SDK, and OEM services, including OEM for known brands. Service governance is supported by written inspection, complaint-handling, corrective-action, and supplier-assessment procedures with records. However, no overseas warehouse, showroom, overseas agent or branch is available, and no overseas service countries are reported. Certification holdings and specific customer case details are not provided. Financial records are indicated for recent years, but the supplied information does not establish financial strength.

Supplier typeThe supplier is identified as a limited company, with a stated business scope covering switchgear, compact substations, high-voltage switchgear, low-voltage complete equipment, and transformers. This establishes a manufacturer or industrial equipment supplier profile, but the record does not provide further ownership or group-structure details.

R&D capabilityThe supplier reports new products within the past year, provides ODM services, and has an available SDK. These are explicit indicators of product-development and technical-support capability.

Production capacityThe supplier operates four production lines, has 21–30 quality-control staff, maintains inventory capability, and reports one-month lead times in both peak and off-peak seasons. It also has valid manufacturing contracts with each related subcontractor and a supplier network of 42 qualified suppliers, supporting production continuity; actual capacity volume is not otherwise established without using the excluded monetary output figure.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM capability and new-product activity, providing strong direct evidence of broad customization support.