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High-Efficiency Oil Immersed Transformer for Three Phase Substations

Name: High-Efficiency Oil Immersed Transformer for Three Phase Substations
Brand: Zhejiang Hairui Electric Co., Ltd.
SKU: 2258319955

Zhejiang, ChinaZhejiang Hairui Electric Co., Ltd.

US$800.00-2,000.00

1 pc

Product specifications

Rated Capacity

Product profile

Customization

Available

Application

Power, Electronic, Voltage Transformation

Phase

Three-Phase

Model NO.

SZ11

Core

Amorphous Alloy Transformer

Cooling Method

Onan

Winding Type

Two-winding Transformer

Certification

ISO9001

Usage

Single-phase Transformer, Power Transformer, Distribution Transformer

Frequency Characteristics

Power Frequency

Shape of Core

Ring

Brand

Hairui

Coil Number

Coil Structure

Oval

Frequency

50 Hz60 Hz

Input Voltage

35 Kv, 11 Kv10 Kv33kv.20kv

Output Voltage

110V220V380V400V415 V

Transport Package

Wood Box

Specification

customize

Trademark

HaiRui

Origin

Zhejiang, China

Production Capacity

5000000/PC

Key features

High Energy Efficiency: Meets GB 20052-2024 Level 1 standards with losses reduced by over 30% and 20%.

Fully Sealed Design: Corrugated tank eliminates oil conservator, isolating transformer from air and moisture.

Long Service Life: Vacuum drying process ensures design life exceeding 20 years with slow insulation aging.

Robust Construction: Impact-resistant design suitable for harsh environments and long-distance transportation.

Flexible Customization: Customizable capacity, size, protective coatings, and voltage options available.

Wide Environmental Adaptability: Suitable for indoor/outdoor, high altitude, humidity, pollution, and coastal environments.

Multiple Safety Protections: Integrated pressure relief valve and gas relay for safe, maintenance-free operation.

Fast Delivery: Standardized production ensures delivery within 12-30 days.

Company profile

Cooperated with Fortune 500Management CertificationR&D CapabilitiesCustomization from Samples

Zhejiang Hairui 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.Export Year: 2025-12-06 CertifiedNearest Port: Ningbo PortAverage Response Time: ≤0.74h

AI-Powered supplier vetting

SummaryThe supplier presents itself as a professional technical manufacturer with production equipment, standardized finished-product inspection, quality assurance, material traceability, 3D design, and broad customization capabilities. It reports OEM and ODM services and exports representing 51%–70% of total sales. However, the evidence also shows no new products in the past year, no SDK, no overseas agents, branches, warehouse, or showroom, and no participation in offline trade shows. Corrective-action and complaint-handling procedures exist but lack written records. Supplier-management controls are weak because there are no written assessment procedures or approved supplier lists, and no valid manufacturing-capacity contract with related subcontractors is reported. Financial credibility cannot be positively assessed from the provided figures, which are stated as zero for the reported periods.

Supplier typeThe supplier is explicitly identified as a professional technical supplier and reports R&D capability, 3D software design services, manufacturing equipment, and export activity of 51%–70% of total sales. These details support classification as a technical manufacturing supplier with international sales exposure.

CertificationsThe supplier states that it is certified to ISO 9001 and ISO 9002 quality management systems and claims recognition as a National High-Tech Enterprise and a Top 10 Well-Known Brand of Prefabricated Substations. The certification wording contains apparent transcription errors, so the stated certifications are evidence of claimed quality credentials but not independently verified here.

Production capacityThe supplier reports technical expertise, production facilities, advanced manufacturing processes, and equipment including machining, bending, assembly, cutting, laser cutting, welding, electrical leakage testing, and a partial-discharge lightning test laboratory. It also has inventory capability, standardized finished-product inspection instructions, and one-month average lead times in both peak and off-season periods. Nevertheless, no valid contract with related subcontractors is reported, creating a documented capacity-management concern.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, and minor customization, supported by 3D software design services and ODM capability. This demonstrates broad stated customization coverage.

Product Q&A

Q:Does it support OEM/ODM customization?

Yes, we support customized services, including parameter adjustments for power, size, input/output voltage, protection level (IP level), working environment (such as explosion-proof, high temperature resistance), and provide technical solution design.

Q:Can you provide technical document support?

Yes, English manuals, product certificates, test reports, wiring diagrams, and other documents are provided with the goods, and we can assist customers in completing the necessary documents for import customs clearance.

Q:Where are you? Can I come see you?

Of course, you are welcome to visit our factory anytime.

Q:What is the cooling method?

The transformer uses an Oil-immersed (Onan) cooling method.

Q:What certifications does the product have?

The product is certified with ISO9001 and complies with Chinese standards such as GB/T 1094 and GB/T 6451.