What insulation class does this transformer have?

The transformer has an E-class insulation rating.

Who manufactures this transformer?

It is manufactured by CRRC Zhuzhou Electric, a core subsidiary of CRRC Group with over 60 years of experience.

What certifications does this product hold?

The product is certified with ISO9001-2000, ISO9001, and CCC standards.

Compact 4300kVA Oil Transformer with 33kv for Onshore Wind Towers

Name: Compact 4300kVA Oil Transformer with 33kv for Onshore Wind Towers
Brand: CRRC Zhuzhou Electric Co.,Ltd
SKU: 2126090512

Hunan, ChinaCRRC Zhuzhou Electric Co.,Ltd

US$70,000.00-300,000.00

1 Piece

Product specifications

Type

Product profile

Customization

Available

Application

Power

Phase

Three

Model NO.

4300/33

Core

Core-type Transformer

Cooling Method

Oil-immersed Type Transformer

Winding Type

Separated Winding Transformer

Certification

ISO9001-2000, ISO9001, CCC

Usage

Combined Transformer, Power Transformer

Frequency Characteristics

Power Frequency

Brand

Crrc

Rated Capacity

4300 kVA

Rated Voltage

33 Kv / 0.69 Kv

Cooling Methods

Kfwf (Forced Oil-Water Cooling)

Insulation Class

Class E

Weight

6.6 T

Insulation Medium

Fire-Retardant Insulating Oil

Maximum Voltage Rating

72.5 Kv

Maximum Capacity Rating

20 Mva

Safety Features

Sealed Tank Design, Pressure Relief Device

Applications

Onshore Towers, Offshore Towers, Offshore Nacelle

Transport Package

Container

Specification

2330×840×2300 mm

Trademark

CRRC

Origin

China

Key features

High Reliability & Stability: Derived from advanced rail transit technology for stable performance in demanding wind tower environments.

Compact & Lightweight Design: Weighs only 6.6 tons with vertical mounting, enabling flexible installation in confined tower spaces.

Advanced Fire Safety: Features sealed tank design, pressure relief devices, and fire-retardant insulating oil for operational safety.

Efficient Cooling System: Utilizes KFWF forced oil-water cooling to maintain stable thermal performance under varying load conditions.

Versatile Application: Suitable for both onshore and offshore wind tower applications, including nacelle installations.

Proven Manufacturer: Manufactured by CRRC Zhuzhou Electric, a leading supplier with over 60 years of experience and global reach.

High Capacity Rating: Rated at 4300 kVA with maximum capacity rating up to 20 MVA for robust power transmission.

International Certifications: Certified with ISO9001 and CCC standards, ensuring quality and compliance for global markets.

Company profile

CRRC Zhuzhou Electric Co.,Ltd

Hunan, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedExport Year: 21 years CertifiedNearest Port: Guangzhou Port;Shanghai Port;Shenzhen Port;Average Response Time: >24h CertifiedTerms of Payment: T/T, LC, D/P, etc. CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR, EXW

AI-Powered supplier vetting

SummaryCRRC Zhuzhou Electric Co., Ltd. is a China-based state-owned manufacturer/factory with 2,336 employees and product offerings including motors and blowers. The supplier demonstrates broad customization and R&D capabilities, including recent new-product development, ODM services, and OEM services for well-known brands. It has operated in export markets for 21 years and provides overseas installation, debugging, maintenance, repair, and training in Germany, Thailand, and South Korea. Service procedures for corrective actions and customer complaints are documented and followed, but no quality assurance is reported. The supplier has no overseas warehouse, showroom, agent, or branch. Financial credibility cannot be fully assessed because the slices only identify financial information for 2022–2024 without performance figures. Customer-case evidence is limited to participation in the Norwegian Maritime Exhibition and stated OEM service for well-known brands.

Supplier typeThe supplier is identified as a manufacturer/factory and limited company located in Hunan, China, with state-owned ownership and 2,336 employees. Its stated products include motors and blowers, while its business scope also covers rectifiers, inductors, generators, mechanical and electrical equipment, and rail-transit equipment.

CertificationsThe supplier reports a documented corrective and preventive action procedure and documented customer-complaint handling records. However, it explicitly reports no quality assurance in its quality-control processes, and no certification is identified in the provided slices.

After-Sales capabilityThe supplier offers debugging, maintenance, repair, training, and equipment installation in Germany, Thailand, and South Korea, and has participated in an offline Norwegian maritime exhibition. It has documented complaint-handling procedures, but no overseas warehouse, showroom, agent, or branch, which limits its directly established overseas infrastructure.

R&D capabilityThe supplier reports new products during the past year, provides ODM services, and offers technical development, consultation, exchange, and transfer. It also reports no available SDK, so the evidence supports product and engineering innovation but not SDK-based integration capability.

Production capacityThe supplier is a manufacturer/factory with 2,336 employees and a business scope covering electrical, mechanical, generator, rectifier, inductor, and rail-transit equipment. It has 21 years of export experience and states that finished-product inspection instructions are available and uniformly followed.

Customization capabilityThe supplier explicitly offers customization from samples, designs, flexible customization, minor customization, and full customization. These capabilities are reported consistently across both design-service records, indicating broad customization coverage.