What are the terms of payment and lead time?

Terms of payment are T/T. The average lead time is one month during peak season and within 15 workdays during the off-season.

What is the minimum order quantity (MOQ)?

The minimum order quantity is 1 unit.

Long Service Life Durable Transformer for Heavy Duty Industry

Name: Long Service Life Durable Transformer for Heavy Duty Industry
Brand: Zhejiang Tianrun Electric Co., Ltd.
SKU: 2294379605

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, CE

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

1250-31500kVA

Connection of Transformer Winding

Yyn0/Dyn11

Winding

Copper

Transport Package

Wooden Case

Specification

1200*1400*1700mm

Trademark

TENRONY

Origin

China

HS Code

8504109000

Production Capacity

300/Monthly

Key features

Forced Air Cooling Efficiency: Boosts heat dissipation 30-50% over conventional transformers with automatic fan activation.

High Capacity Output: Delivers ~40% more output than ONAN at same size, scaling up to 63,000+ kVA.

Robust Overload Protection: Supports 120% continuous load and 150% short-term emergency dispatch capability.

Advanced Safety Features: Includes Buchholz relay, pressure relief valve, and sealed oil system to prevent leaks.

Customizable Specifications: Offers customizable vector groups, voltage levels, and connection types for specific needs.

Premium Material Quality: Utilizes copper windings and stainless steel grilles for durability and performance.

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: ≤0.87h

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 cooling method of the SF20 series transformer?

The SF20 series uses ONAN (Oil Natural Air Natural) and ONAF (Oil Natural Air Forced) cooling methods, featuring forced air cooling with multiple low-noise fans that activate automatically on temperature rise.

Q:What is the rated capacity range for this transformer?

The rated capacity range is 10,000 to 120,000 kVA, with ratings scaling from 10,000 kVA (ONAN) to 63,000+ kVA (OFAF).

Q:What are the available voltage levels?

The available voltage levels are 35 kV, 66 kV, 110 kV, and 220 kV.

Q:Is customization available for this product?

Yes, customization is available for vector groups (e.g., YNd11 / YNyn0d11), voltage levels, and connection types. OEM and ODM services are also supported.

Q:What certifications does the product hold?

The product holds ISO9001-2000, ISO9001, CCC, and CE certifications, and complies with GB/T 1094 (equivalent to IEC 60076) standards.