What are the available voltage levels?

Available voltage levels include 6kV, 10kV, 20kV, and 35kV.

What is the expected lifespan of the transformer?

The sealed design ensures continuous, reliable performance for over 25 years without requiring oil replacement.

What certifications do you hold?

We hold ISO9001-2000, ISO9001, and CCC certifications.

Professional High-Performance Three-Phase Oil-Immersed Distribution Transformer for Industrial Power Supply Systems

Name: Professional High-Performance Three-Phase Oil-Immersed Distribution Transformer for Industrial Power Supply Systems
Brand: Jiangsu Tianhua Transformer Co., Ltd.
SKU: 2284743625

Jiangsu, ChinaJiangsu Tianhua Transformer Co., Ltd.

US$2,300.00

1 Piece

Product specifications

Specification

Product profile

Customization

Available

Application

Power

Phase

Three

Model NO.

S11/S13/S20/S22

Core

Core-type Transformer

Cooling Method

Oil-immersed Type Transformer

Winding Type

Two-winding Transformer

Certification

ISO9001-2000, ISO9001, CCC

Usage

Power Transformer, Distribution Transformer

Frequency Characteristics

Power Frequency

Shape of Core

Product Name

Oil-Immersed Distribution Three-Phase Transformer

Keywords

Oil-Immersed Transformer

Rated Capacity

30kVA - 25000kVA (Customizable)

Voltage Level

6kv, 10kv, 20kv, 35kv

Frequency

50Hz / 60Hz

Connection Type

Dyn11, Yyn0 (Optional)

Core Material

High-Permeability Oriented Silicon Steel

Winding Material

High-Purity Oxygen-Free Copper / Aluminum

Insulation Oil

Premium Grade Mineral Transformer Oil

Insulation Class

Class a

Noise Level

≤45db @ Rated Load

Short Circuit Impedance

4% - 8% (Customizable)

Overload Capacity

1.5 Times Rated Load for 2 Hours

Protection Rating

IP23 - IP67 (Optional)

OEM/ODM

Available

Transport Package

Standard Packaging or Customized

Specification

Standard Specifications or Customized

Trademark

Origin

Jiangsu, China

Production Capacity

10000 Units/Year

Key features

Premium Core & Winding Materials: High-permeability silicon steel cores with high-purity oxygen-free copper windings for minimal energy loss.

Lifetime Sealed Protection: Hermetically sealed tank design ensures over 25 years of maintenance-free operation without oil replacement.

High Overload Capacity: Handles 1.5 times rated load for 2 hours or twice nameplate rating during peak demand without degradation.

Comprehensive Factory Testing: Includes temperature rise, lightning impulse, and partial discharge detection under 50 picocoulombs.

Flexible Customization Options: Customizable rated capacity (30-25000kVA), short circuit impedance (4%-8%), and connection types.

Robust Protection Ratings: Offers optional protection ratings from IP23 to IP67 for diverse environmental requirements.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export Experience

Jiangsu Tianhua Transformer Co., Ltd.

Jiangsu, 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: 12 years CertifiedNearest Port: Lianyungang Port; Qingdao Port; Shanghai PortAverage Response Time: ≤0.79h

AI-Powered supplier vetting

SummaryJiangsu Tianhua Transformer Co., Ltd. is a transformer manufacturer involved in production, development, sales, and related import/export activities. It reports five production lines, a 6,150.0 m² manufacturing plant, 100% finished-product inspection, and five quality assurance and quality control inspectors. The supplier supports customization from samples and designs, offers OEM services for well-known brands, and maintains documented procedures for service assessment, corrective and preventive actions, and complaint handling. ISO9001:2015, ISO45001:2018, and ISO14001 certifications are reported. However, it has no valid manufacturing-capacity contract with related subcontractors, no outsourcing standard operating procedure, no ongoing batch quantity reconciliation, no overseas warehouse or showroom, and no available SDK. The provided information does not establish specific customer cases or independently verify financial strength.

Supplier typeThe supplier is identified as a transformer manufacturer whose business covers power transformer and distribution cabinet manufacturing and sales, along with related import and export activities. Its company description also identifies it as a high-tech enterprise specializing in transformer production, development, and sales.

CertificationsThe supplier reports ISO9001:2015, ISO45001:2018, and ISO14001 certifications, and states that it follows the ISO9000 quality management system. These records provide explicit evidence of quality, occupational health and safety, and environmental management certification.

After-Sales capabilityThe supplier has written procedures and records for service-capability assessment, corrective and preventive actions, and customer complaint handling. It also reports in-stock capability and accepts multiple quotation and payment terms, but it lacks overseas warehouse and showroom services; the evidence supports service-process capability but not comprehensive overseas after-sales coverage.

Production capacityThe supplier reports a 6,150.0 m² manufacturing plant, five production lines, dedicated equipment for slitting, shearing, punching, foil winding, coil winding, and heating, plus in-stock capability and 100% finished-product inspection. Capacity-control weaknesses remain because there is no valid manufacturing-capacity contract with related subcontractors, no outsourcing SOP, and no ongoing batch quantity reconciliation.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. This indicates broad stated adaptability to customer-specific transformer requirements.