Are transformers tested before delivery?

Yes, each transformer undergoes rigorous factory testing before shipment, and test reports are provided.

Do you provide technical support and after-sales service?

Yes, we offer remote guidance via phone, email, or video, and can dispatch engineers for on-site service (additional fees apply). We also guarantee long-term spare parts supply.

How to choose the right transformer model?

Oil-immersed transformers are suitable for outdoor, power plants, and large industrial projects. Dry-type transformers are ideal for indoor locations like commercial buildings and data centers with high fire safety requirements.

Electrical Oil Transformer for Industrial Use with ISO Certification S11-30kVA

Name: Electrical Oil Transformer for Industrial Use with ISO Certification S11-30kVA
Brand: Weiguan Electric Co., Ltd
SKU: 2283991215

Zhejiang, ChinaWeiguan Electric Co., Ltd

US$764.00-1,075.00

1 Piece

Sample price:US$780.00/piece.Request sample

Product profile

Customization

Available

Application

Power, Electronic, Instrument, Lighting, Rectifier

Phase

Three

Model NO.

S11-30

Core

Core-type Transformer

Cooling Method

Oil-immersed Type Transformer

Winding Type

Auto-transformer

Certification

ISO9001

Usage

Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer

Frequency Characteristics

High Frequency

Shape of Core

Rated Capacity

30 kVA

Frequency

50 Hz

Cooling Mode

Onan (Oil Natural, Air Natural)

Regulation Type

off-Circuit Tap Changer

Transport Package

Carton

Specification

S11-30kVA/10KV

Trademark

Weiguan

Origin

Wenzhou, China

HS Code

8504211000

Production Capacity

1000pieces/Month

Key features

ISO9001 Certified Quality: Manufactured under ISO9001:2015 standards ensuring consistent quality and reliability.

High Efficiency Design: Low no-load loss (100W) and load loss (600-630W) for energy optimization.

Flexible Customization: Customizable voltage, capacity, frequency, and cooling modes to meet specific needs.

Robust Construction: Core-type, oil-immersed design with EE core shape for durability and performance.

Long Service Life: Typical lifespan of 20-30 years with proper maintenance and controlled load.

Comprehensive Testing: 100% inspection including visual and function tests before shipment.

Global Application: Suitable for power grids, industrial facilities, and renewable energy systems.

Professional Support: 18 years experience with remote guidance and optional on-site engineer dispatch.

Company profile

Importers and ExportersSelf-brandedProduction Process VisualizationPatents Awarded

Weiguan 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: ≤0.04h

About Our Factory & Business Background

AddressYangao Village, Yanpen Street, Yueqing City, Wenzhou, Zhejiang, China

Plant Area3300 square meters

Registered Capital50,180,000 RMB

Terms of PaymentT/T

International Commercial Terms(Incoterms)FOB

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

Minimum Order Quantity1 Set

Supply Chain Partners100

Our Production Capability & Technical Expertise

Main Products3 Phase Transformer, Step up Transformer, Power Substation Transformer, Electrical Transformer, Photovoltaic Transformer, Smart Transformer, Dry Type Transformer, Compact Substation Transformer, Oil Type Transformer, Oil Immersed Transformer

Production Lines12

Production MachinesSlitting machine, Chamfering machine, Vacuum pressure casting machine, Oven, Variable frequency slitting machine, CNC oscillating shear machine

QA/QC inspectors2 people

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

Inspection Method for Finished ProductsHave instructions and uniformly followed

R&D Engineers1 people

Traceability of Raw MaterialsYes

Own BrandYes

Our Industry Experience & Global Business Record

Year of Establishment2008-03-10

Main MarketsDomestic

Repeat Buyers Choice30%~50%

Number of Foreign Trading Staff1

Overseas Agent/BranchNo

New Products Launched in Last yearNo

Our Certifications, Standards & Industry Recognition

Management System CertificationISO9001:2015

Cooperated with Fortune 500No

Product Q&A

Q:Are you a manufacturer or trading company?

We are a professional manufacturer with over 18 years of experience in research, development, manufacturing, and operation of transformers.

Q:Do you support customization?

Yes, we support customization for voltage, capacity, frequency, and other specifications to meet the specific requirements of different countries and regions.

Q:What is the delivery time?

Standard lead time is 15-30 days depending on specifications and order quantity. For customized products or large orders, delivery time is confirmed based on the production schedule.

Q:What is the warranty period?

We offer a 12-month warranty from the date of manufacture. Extended warranties are available for major components.

Q:What is the service life of the transformer?

The typical service life is around 20-30 years under normal operating conditions. With proper installation and maintenance, it can be extended to over 30 years.