What payment terms are accepted?

We accept LC, T/T, PayPal, and Western Union for international commercial transactions.

Is the transformer suitable for harsh environments?

Yes, it features a robust structural design suitable for long-distance transportation and harsh environments, including high altitude and coastal areas.

High Efficiency Low Loss Toroidal Transformer, 50 kVA Oil Immersed

Name: High Efficiency Low Loss Toroidal Transformer, 50 kVA Oil Immersed
Brand: Zhejiang Hairui Electric Co., Ltd.
SKU: 2266417645

Zhejiang, ChinaZhejiang Hairui Electric Co., Ltd.

US$800.00-2,000.00

1 Set

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

Frequency Characteristics

Power Frequency

Shape of Core

Brand

Hairui

Coil Number

Coil Structure

Oval

Frequency

50 Hz60 Hz

Input Voltage

35 Kv, 11 Kv, 10 Kv33kv.20kv

Output Voltage

110V.220V.380V.400V.415 V,440V

Transport Package

Wood Box

Specification

customize

Trademark

HaiRui

Origin

Zhejiang, China

Production Capacity

5000000/PC

Key features

Level 1 Energy Efficiency: Meets GB 20052-2024 standards with over 30% no-load and 20% load loss reduction.

Maintenance-Free Design: Fully sealed corrugated tank isolates transformer from air and moisture, eliminating oil conservator needs.

20+ Years Service Life: Vacuum drying and oil filling processes ensure slow insulation aging and long durability.

Robust Short-Circuit Resistance: Balanced winding ampere-turn distribution and high mechanical strength withstand harsh conditions.

Flexible Customization: Customizable capacity, size, protective coatings, and voltage options including 35kV/11kV input.

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

ISO9001 Certified Quality: Strictly adheres to GB/T 1094 and GB/T 6451 standards with 100% finished product inspection.

Significantly Reduced TCO: Ultra-high efficiency saves electricity costs while maintenance-free design lowers operating expenses.

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: ≤1.97h

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 warranty period?

The design life exceeds 20 years, ensuring long-term reliability and stable performance.

Q:What are the delivery time requirements?

Standardized production ensures delivery within 12-30 days, with peak and off-season lead times averaging one month.