What is the warranty period?

We provide a 2-year warranty for our transformers.

What is the minimum order quantity?

The minimum order quantity is 1 set.

What is the lead time for production?

The average lead time is within 15 workdays for both peak and off-season periods.

No Load Tap Changer Three Phase Oil Immersed Transformer Step up Step Down 250kVA 500kVA

Name: No Load Tap Changer Three Phase Oil Immersed Transformer Step up Step Down 250kVA 500kVA
Brand: Zhejiang Shenmeng Electric Power Technology Co., Ltd.
SKU: 2274874355

Zhejiang, ChinaZhejiang Shenmeng Electric Power Technology Co., Ltd.

US$1,000.00-10,000.00

1 Piece

Product profile

Customization

Available

Application

Power, Electronic, Instrument, Lighting, Rectifier, Audio

Phase

Three

Model NO.

S11 S13 S20 S22

Core

Core-type Transformer

Cooling Method

Oil-immersed Type Transformer

Winding Type

Two-winding Transformer

Certification

ISO9001-2000, ISO9001

Usage

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

Frequency Characteristics

Power Frequency

Shape of Core

Ring

Brand

Sinm

Material

Aluminum or Copper

Warranty

2 Years

Sample

Rated Capacity (kVA)

30 - 2500

Transport Package

Box

Specification

3600*2200*2400 (mm)

Trademark

Sinm

Origin

China

Production Capacity

5000pieces

Key features

Customizable Material: Available in Aluminum or Copper winding materials to suit specific project requirements.

Flexible Customization: Supports OEM/ODM services, including logo printing and customization from samples or designs.

Reliable Warranty: Comes with a 2-year warranty covering mechanical defects and performance issues.

Low Noise Design: Compact structure with new materials reduces noise levels significantly compared to similar products.

Maintenance-Free Operation: Fully sealed design isolates oil from air, eliminating the need for regular maintenance.

High Efficiency: Optimized core and winding design ensures low no-load and on-load losses for energy saving.

Robust Construction: Corrugated plate fins allow elastic expansion, ensuring durability and aesthetic appearance.

Wide Application: Suitable for power, electronic, instrument, lighting, and rectifier applications in harsh environments.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export Experience

Zhejiang Shenmeng Electric Power Technology 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: 13 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤5.87h

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technology supplier with 3D design and broad customization capabilities. It reports production equipment, inventory capacity, valid manufacturing contracts, and 12 years of export experience, with stated lead times of within 15 working days in both peak and off-seasons. However, finished-product inspection is performed by packing staff, and the supplier lacks written procedures or records for corrective actions, customer complaints, supplier assessment, and traceability identification. No overseas branches, agents, warehouse, showroom, or offline trade-show participation are reported. The provided information does not establish certifications, customer cases, or sufficient financial strength. Innovation is evidenced by technology-focused operations and design services, but no SDK is available.

Supplier typeThe supplier is explicitly identified as a professional technical supplier and describes itself as a technology-based enterprise focused on innovation and promotion in the power distribution field.

After-Sales capabilityThe supplier supports in-stock service and offers multiple quotation and payment terms, but reports no overseas agents, branches, warehouse, or showroom. Customer complaint handling has no written procedures or records, which is an explicit weakness in after-sales process control.

R&D capabilityThe supplier is described as technology-based, reports R&D capability, provides 3D software design services, and supports several forms of customization. However, it has no available SDK, so the evidence supports product and design innovation but not SDK-based development.

Production capacityThe supplier reports multiple production machines, valid contracts with associated subcontractors, inventory capacity, and lead times within 15 working days in both peak and off-seasons. Nevertheless, finished products are checked by packing staff, with no written supplier-assessment procedures and no material traceability identification, indicating process-control deficiencies.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization, along with 3D software design services. This demonstrates broad customization coverage.

Product Q&A

Q:Are you a manufacturer?

We are a professional factory with 10 years of experience in high and low voltage switch-gears, substations, transformers, cable distribution boxes, and various electrical equipment.

Q:Do you accept customized service?

Yes, we offer OEM/ODM services, including printing your logo on the product. Our professional technical and quotation team can provide a satisfied project according to your drawings and parameters.

Q:What are your terms of payment?

We require a T/T 30% deposit, with the remaining 70% paid before delivery. We will show you photos of the products and packages before you pay the balance.

Q:Can your products be customized?

Yes, considering differences in voltage, frequency, and other specialties of transformer products in different countries and regions, our products can be customized according to your specific requirements.

Q:How do you solve quality problems?

Please provide detailed photos of the quality problems. Our technical and quality testing department will analyze them, and we will provide a satisfactory solution within 1 day.