What certifications does the transformer have?

The transformer has passed ISO9001-2000, ISO9001, CCC, CE, and complies with international standards such as IEC and national standards such as GB1094.

How does this transformer reduce energy consumption?

It uses high-performance oriented silicon steel sheets and oxygen-free copper coils. The optimized core structure and reduced current density significantly lower no-load loss (>30%) and load loss (>20%).

What is the rated capacity range?

The rated capacity ranges from 30 kVA to 31,500 kVA.

High Reliability Distribution Oil Immersed Transformer

Name: High Reliability Distribution Oil Immersed Transformer
Brand: Zhejiang Tianrun Electric Co., Ltd.
SKU: 2294489445

Zhejiang, ChinaZhejiang Tianrun Electric Co., Ltd.

US$369.00-1,788.00

1 Piece

Product profile

Customization

Available

Application

Power, Rectifier, Combined Transformer, Power Transformer,

Phase

Three

Model NO.

S20-M

Core

Core-type Transformer

Cooling Method

Oil-immersed Type Transformer

Winding Type

Multi-winding Transformer

Certification

ISO9001-2000, ISO9001, CCC

Usage

Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer, Three Phase Transformer

Frequency Characteristics

Power Frequency

Shape of Core

Ring

Brand

Tenrony

Rated Frequency

50/60Hz

Rated Voltage/Hv

11/33kv

Rated Voltage/LV

400V

Transformer Capacity

30-31500kVA

Connection of Transformer Winding

Yyn0/Dyn11

Winding

Copper

Transport Package

Wooden Case

Specification

800*660*940mm

Trademark

TENRONY

Origin

China

HS Code

8504109000

Production Capacity

1000/Monthly

Key features

Energy Saving Performance: No-load loss reduced by >30%, load loss by >20%, total loss by 25%.

High Conductivity Materials: Uses oriented silicon steel sheets and oxygen-free copper coils for efficiency.

Extended Service Life: Fully sealed structure prevents oil deterioration and insulation aging.

Advanced Core Design: Five-stage joint technology reduces stray loss and operational noise.

Certified Quality: Complies with IEC, GB1094, ISO9001, CCC, and CE standards.

Full Customization: Supports customization for capacity, voltage, connection, and cooling.

Efficient Heat Dissipation: Corrugated tanks and plate-type radiators ensure stable temperature.

100% Quality Inspection: Each unit undergoes strict tests including insulation and leak checks.

Company profile

Importers and ExportersFull Customization100% Finished Products InspectionR&D Capabilities

Zhejiang Tianrun 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: 1 Year CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤0.92h

About Our Factory & Business Background

AddressNo. 788 Wenyi Road, Bihu Industrial Park, Liandu District, Lishui, Zhejiang, China

Plant Area50369.12 square meters

Number of Employees167

Registered Capital107,580,000 RMB

Terms of PaymentT/T

International Commercial Terms(Incoterms)FOB, CIF

Average Lead TimePeak Season Lead Time: one month Off Season Lead Time: within 15 workdays

Minimum Order Quantity1

Supply Chain Partners80

Our Production Capability & Technical Expertise

Main ProductsTransformer Switchgear Substation

Production Lines2

Production MachinesPunching machine, Laser cutting machine, CNC bending machine, Winding machine, Drying machine

QA/QC inspectors3 people

Inspection Type for Finished Products100% inspection(Visual inspection & Function inspection)

Inspection Method for Finished ProductsFinished product checked by packing staff

R&D Engineers7 people

Traceability of Raw MaterialsYes

Our Industry Experience & Global Business Record

Year of Establishment2003-12-05

Main MarketsDomestic

Repeat Buyers Choice30%~50%

Number of Foreign Trading Staff1

Overseas Agent/BranchYes

New Products Launched in Last yearYes

Our Certifications, Standards & Industry Recognition

Management System CertificationISO9001:2015, ISO14001, ISO45001:2018

Product CertificationCE

Cooperated with Fortune 500No

Product Q&A

Q:What is the warranty period for this transformer?

The product description does not specify a fixed warranty period. However, it mentions a fully sealed structure to reduce maintenance frequency and supports after-sales service as part of the full-process customization solution.

Q:What are the main applications of this distribution transformer?

It is widely used in power systems (urban/rural grids, hospitals, data centers), industrial fields (petroleum, metallurgy, mining), commercial/residential areas, and traffic/communication facilities like railways and subways.

Q:Can the transformer be customized?

Yes, full-process customization is supported. Customers can customize rated capacity, voltage level, connection group, and cooling method according to their actual needs.

Q:What is the minimum order quantity (MOQ)?

The Minimum Order Quantity is 1 unit.

Q:What are the payment terms and lead times?

Payment terms are T/T. Lead time is within 15 workdays during the off-season and one month during the peak season.