What is the lead time for production?

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

How is the quality of finished products inspected?

Finished products undergo 100% inspection, including visual inspection and function inspection, with uniformly followed instructions.

Durable Rotary Tap Changer for Oil Transformer Applications

Name: Durable Rotary Tap Changer for Oil Transformer Applications
Brand: Shanghai Daohuang Electric Co., Ltd.
SKU: 2271316375

Shanghai, ChinaShanghai Daohuang Electric Co., Ltd.

US$22.99-46.99

3 Pieces

Sample price:US$36.00/piece.Request sample

Product profile

Customization

Available

Type

High-voltage

Installation

Indoor High-voltage

Model NO.

DTP

Operation

Manual

Grounding Mode

Not Grounding

Movement Mode

Vertical Rotary Type

Number of Poles

Multi

Grounding

Un Grounded

Brand

Daohuang

Trademark

Daohuang

Origin

China

Key features

De-Energized Operation: Rotary-type switch designed for de-energized voltage regulation in oil-filled transformers.

High Durability Contacts: Spring-loaded copper rolling contacts with tin plating for reliable 100 A current conduction.

Leakage-Proof Design: Operating shaft sealed with two high-temperature resistant O-Rings to prevent oil leakage.

Versatile Configurations: Available in single-deck and three-deck options for both single-phase and three-phase systems.

Robust Material Construction: Body, rotor, and shaft made of high-strength, glass-filled thermoplastic material.

Flexible Customization: Supports full customization, minor customization, and design-based customization options.

Complete Handle Kit: Includes handle, mounting screws, nut, indicator plate, and gasket for easy installation.

High Voltage Withstand: Rated for 35 kV nominal voltage with 50 kBIL level and 150 A continuous current.

Company profile

R&D CapabilitiesFast DeliveryImporters and Exporters

Shanghai Daohuang Electric Co., Ltd.

Shanghai, 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: 4 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤6.63h

AI-Powered supplier vetting

SummaryThe supplier is identified as a trading company in Shanghai with a stated scope covering mechanical parts and component processing, technical services, technology development, and electronic and electromechanical product sales. It reports professional technical R&D capability, 3D software design, customization, ODM, and OEM services, as well as new product development during the past year. Quality-related procedures include corrective and preventive actions, complaint handling, quality assurance, and raw-material traceability. However, the supplier reports no valid manufacturing-capacity contract with affiliated subcontractors, no inventory, overseas warehouse, overseas showroom, overseas agents or branches, or SDK availability. Financial evidence is insufficient because the provided figures are non-informative placeholders and no monetary data is presented. Customer-specific cases and certifications are not documented.

Supplier typeThe supplier is classified as a trading company located in Songjiang District, Shanghai. Its stated business scope also includes mechanical parts and component processing, technical services, technology development, consulting, and sales of electronic and electromechanical products, indicating a trading-oriented entity with technical-service activities.

After-Sales capabilityThe supplier has clear procedures and records for corrective and preventive actions and customer complaint handling, supported by quality assurance and raw-material traceability. However, it has no overseas agents or branches, serves no stated overseas countries, and its supplier-service assessment procedure has written procedures but no records, so the documented capability is stronger for internal service processes than for international after-sales coverage.

R&D capabilityThe supplier reports professional technical R&D capability, 3D software design services, new product development within the past year, and ODM capability. It does not have an available SDK, but the documented product-development and design capabilities support a positive innovation assessment.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization. Its reported ODM service further supports the ability to provide design-based customized solutions.

Client casesThe supplier states that it provides OEM services for popular brands, which is evidence of experience serving recognized-brand customers. However, no customer names, project descriptions, products, or verifiable case details are supplied.

Product Q&A

Q:What is the operating mode of this tap changer?

It is a de-energized, rotary-type switch that is mounted through the tank wall and operated from outside the transformer.

Q:What materials are used for the contacts?

The moving contact system consists of spring-loaded copper rolling contacts, with 100 A contacts available in stud type connectors and tin-plated copper.

Q:Is customization available for this product?

Yes, OEM and ODM services are available. Customization options include full customization, minor customization, customization from samples, and customization from designs.

Q:What is the minimum order quantity?

The minimum order quantity is 1 Set.

Q:What are the payment terms?

Payment terms include LC, T/T, D/P, PayPal, Western Union, and Small-amount payment.