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Rotary Tap Changer Switch (De-Energized) for Oil-Filled Distribution Transformers
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 safe operation when transformer is de-energized.
High Voltage Rating: Nominal voltage up to 35kV with 150kV BIL level for reliable performance.
Durable Contact System: Spring-loaded copper rolling contacts with tin plating for 100A continuous current.
Leak-Proof Design: Operating shaft sealed with two high-temperature resistant O-Rings to prevent oil leakage.
Versatile Configuration: Available in single-deck and three-deck options for single-phase and three-phase systems.
Customization Available: Offers full customization, minor customization, and flexible options from samples or designs.
Complete Kit Included: Each handle kit includes handle, mounting screw, nut, indicator plate, and gasket.
Rigorous Quality Control: 100% inspection including visual and function checks for all finished products.

Company profile

R&D CapabilitiesFast DeliveryImporters and Exporters
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: ≤2.19h

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 nominal voltage rating?
A:
The tap changer supports a nominal voltage of 35kV.
Q:Is the switch customizable?
A:
Yes, we offer full customization, minor customization, and flexible options based on samples or designs.
Q:What is the continuous current capacity?
A:
The switch handles a continuous current of 150A with tin-plated copper contacts.
Q:How is the switch operated?
A:
It is a manual, de-energized rotary-type switch operated from outside the transformer tank.
Q:What is the lead time for orders?
A:
The average lead time is within 15 workdays for both peak and off-peak seasons.

Send Inquiry

*To:Shanghai Daohuang Electric Co., Ltd.
*Content:
0/4000

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