Is OEM service available?

Yes, OEM service is available, especially for orders with good quantity.

What is the packaging standard?

We usually use strong plywood cases for protection.

What is the minimum order quantity?

The minimum order quantity is 1 set.

S11-M Three Phase 33kv to 400V Oil-Immersed Distribution Power Transformer

Name: S11-M Three Phase 33kv to 400V Oil-Immersed Distribution Power Transformer
Brand: Wenzhou Rockwill Electric Co., Ltd.
SKU: 906145755

Zhejiang, ChinaWenzhou Rockwill Electric Co., Ltd.

US$1,500.00-100,000.00

1 Piece

Product profile

Customization

Available

Application

Power, Lighting

Phase

Three

Model NO.

S7, S9

Core

Core-type Transformer

Cooling Method

Oil-immersed Type Transformer

Winding Type

Two-winding Transformer

Certification

ISO9001-2000, ISO9001, CCC

Usage

Power Transformer

Frequency Characteristics

Power Frequency

Shape of Core

Ring

Brand

Rockwell

Color

Gray, Green or Customized

Transport Package

Wooden Packing

Specification

IEC/ANSI/IEEE

Trademark

Rockwell

Origin

China

HS Code

8504330000

Production Capacity

20000

Key features

Customizable Color Options: Available in Gray, Green, or fully customized color to meet specific requirements.

Flexible Core Material: Choice between C.R.G.O Silicon Steel or Amorphous Metal based on customer needs.

Wide Capacity Range: Capacities available from 5kVA to 500kVA for diverse power distribution needs.

OEM and ODM Services: Full customization from samples and designs with logo printing for large orders.

12-Month Warranty: Comprehensive warranty coverage starting from the Bill of Lading date.

Dual Winding Material: Available with either copper or aluminum windings depending on budget and performance.

ANSI Standard Compliance: Robust construction meeting ANSI, IEC, and BS standards for safety and efficiency.

Fast Delivery Time: Standard production and delivery completed within 15 to 20 days.

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.