What is the purpose of the pressure relief valve?

It protects the oil tank from deformation or bursting and prevents external contamination.

Is the tap changer operational under load?

No, it is an off-circuit tap changer that operates under no excitation state.

What payment terms are accepted?

We accept T/T (Telegraphic Transfer) as the payment term.

High-Efficiency Three Phase Oil Immersed Transformer with UL Certification

Name: High-Efficiency Three Phase Oil Immersed Transformer with UL Certification
Brand: Jiangsu Yawei Electric Group Co., Ltd.
SKU: 1968563451

Jiangsu, ChinaJiangsu Yawei Electric Group Co., Ltd.

US$2,099.00-11,999.00

1 Set

Product profile

Customization

Available

Application

Power

Phase

Three

Model NO.

Three Phase Oil Transformer

Core

Core-type Transformer

Cooling Method

Oil-immersed Type Transformer

Winding Type

Multi-winding Transformer

Certification

ISO9001-2000, ISO9001, CCC, UL CE

Usage

Power Transformer

Frequency Characteristics

High Frequency

Shape of Core

Ring

Brand

Yawei

Coil Structure

Layer Coil

Rated Primary Voltage

10 or Others

Rated Secondary Voltage

0.4 or Others

Rated Capacity

630kVA or Others

Type

Distribution Transformer

Winding Material

Copper/Aluminum

Connection Symbol

Dyn11,Yyn0,Yzn11

Input Voltage

10kv,11kv,15kv,22kv,30kv

Output Voltage

380V,400V

Transport Package

Wooden Case

Specification

as per design

Trademark

YaWei electric

Origin

China

HS Code

8504231100

Production Capacity

1200 Sets Per Month

Key features

UL and ISO Certification: Certified with UL, CE, ISO9001, and CCC for global compliance and safety.

Oil Level Visibility: Red indicates insufficient oil, blue indicates normal level for easy monitoring.

Pressure Relief Protection: Prevents tank deformation or bursting while keeping air and water out.

Gas Relay Sensing: Highly sensitive internal gas detection to protect transformer integrity.

Quick Oil Drain Valve: Enables rapid oil drainage to significantly reduce maintenance time.

Off-Circuit Tap Changer: Allows tapping and replacement under no excitation state for flexibility.

Secure Wiring Ports: High and low voltage ports feature self-locking nuts for safety.

Customizable Voltage: Input voltage options include 10kV, 11kV, 15kV, 22kV, and 30kV.

Company profile

Jiangsu Yawei Electric Group Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2014-03-08 CertifiedNearest Port: Shanghai PortAverage Response Time: ≤0.80h CertifiedTerms of Payment: T/T

AI-Powered supplier vetting

SummaryJiangsu Yawei Electric Group Co., Ltd. is a limited company producing distribution transformers, power transformers, and dry-type transformers, with 1,102 employees, more than 10 production lines, and reported transformer output of 5,000 pieces. It has ISO 9001:2015, CE, Jiangsu measurement certification, and IEC-related product certification evidence. The supplier demonstrates broad customization, ODM and OEM capabilities, recent product development, quality-control procedures, complaint handling, and corrective-action mechanisms. Its products are sold domestically and exported to several countries, but the available data also shows no inventory, overseas warehouses, overseas showrooms, overseas agents or branches, and no valid manufacturing-capacity contract with associated subcontractors. Financial credibility cannot be assessed because only reporting years are provided, without financial results. Customer evidence is limited to OEM service for known brands and export-market coverage.

Supplier typeThe supplier is identified as Jiangsu Yawei Electric Group Co., Ltd., a limited company and part of a larger group. Its stated product scope is distribution transformers, power transformers, and dry-type transformers.

CertificationsThe supplier reports ISO 9001:2015, CE, Jiangsu enterprise measurement certification, and IEC certification for specified transformer and substation products. A BV audit record is also shown with a stated validity period from April 24, 2026 to April 23, 2027, although the audit evaluation result is recorded as 0 without an explanatory interpretation.

R&D capabilityThe supplier reports new products in the past year, ODM services, technical development and technology-transfer activities, and eight years of total R&D-engineer experience. It does not have an available SDK, but SDK availability is not sufficient by itself to negate the broader evidence of product-development capability.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization. It also reports ODM services and OEM services for well-known brands, providing direct evidence of broad customization and contract-manufacturing capability.