How do you conduct quality control in your factory?

We implement 100% QC inspection to ensure every product is qualified. We have 8 QC inspections during the manufacturing process from raw material to the final products.

Could I have your catalog and price list for trial order in MOQ quantity?

All of our products are showing on Made-in-China or official website, you are always welcome to ask me to get more information directly. Sample order is acceptable.

Can your product be customized?

Considering differences in voltage, frequency and other specialty of transformer product in different countries and regions, our product can be customized according to your requirements.

What should provide to make customized transformer?

Technical drawing is the best, or tell us power (capacity), voltage, installation size limitation, insulation class and etc.

When can I get the price?

Usually we quote within 24 hours after we get your inquiry.

20va 1140V/380V Power Isolation Dry Electrical Step Down Transformer Adaptor for Mining to Power Supply with Three Phase

Name: 20va 1140V/380V Power Isolation Dry Electrical Step Down Transformer Adaptor for Mining to Power Supply with Three Phase
Brand: Changsha Lushan Electronic Technology Co., Ltd.
SKU: 2183538585

Hunan, ChinaChangsha Lushan Electronic Technology Co., Ltd.

US$42.00

1 Piece

Product profile

Customization

Available

Application

Power, Coal Mining

Phase

Three

Model NO.

SG-20VA 1140V/380V

Core

Core-type Transformer

Cooling Method

Winding Type

Multi-winding Transformer

Certification

ISO9001, CE, TUV, Pes

Usage

Power Transformer

Frequency Characteristics

Power Frequency

Shape of Core

Rectangular Core

Brand

Lushan China

Type

Three-Phase Dry Transformer

Capacity

20va

Work Efficiency

≥95%

Primary Voltage

1140V

Secondary Voltage

380V

Insulation Class

H/F

No Load Loss

Customized

Load Loss

Customized

Impedance

Customized

Winding Materials

Copper

Vector Group

Yd11 Dy11 Yy6 Yd5 Dy1

Optional Accessories

Temperature Controller, Fans, Enclosure Case

Executive Standard

GB/T1094.11-2022, GB/T 25120-2023, GB 1094.16-2013

Transport Package

Wooden Pallet/Wooden Case

Trademark

Lushan

Origin

Changsha China

HS Code

8504319000

Production Capacity

100000pieces/Year

Key features

High Efficiency Design: Conversion efficiency reaches 98% or above, significantly reducing energy loss and operational costs.

Low Temperature Rise: Unique heat dissipation structure and high-quality insulation materials ensure rapid heat release and long service life.

Customizable Parameters: No load loss, load loss, and impedance can be customized according to specific customer requirements.

Comprehensive Certifications: Products certified by ISO9001, CE, TUV, and PSE, ensuring international quality and safety standards.

Flexible Winding Options: Available in Copper or Aluminum winding materials with various connection sections like Dyn11.

Wide Capacity Range: Offers transformer capacities ranging from 50VA to 2500kVA to meet diverse power needs.

Robust Quality Control: Implements 100% QC inspection with 8 distinct checkpoints from raw materials to final products.

Fast Response Time: Quotations are typically provided within 24 hours after receiving customer inquiries.

Company profile

Cooperated with Fortune 500Years of Export ExperienceImporters and ExportersPatents Awarded

Changsha Lushan Electronic Technology Co., Ltd.

Hunan, 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: 20 years CertifiedNearest Port: Shanghai portAverage Response Time: ≤1.18h

AI-Powered supplier vetting

SummaryThe supplier manufactures power electronic components, photovoltaic equipment and components, and electrical complete sets. It reports ISO 9001:2015 certification, more than 40 years of technical experience in transformers and reactors, 3D design, OEM/ODM, and broad customization capabilities. Evidence also indicates documented product inspection instructions, available inventory, and technical support covering customer requirements, production, and after-sales service. However, the supplier reported no new products in the past year, no SDK, no overseas warehouse or showroom, and no valid manufacturing-capacity contract with related subcontractors. Financial credibility cannot be assessed from the provided information because no financial performance data is available.

Supplier typeThe supplier’s stated business scope covers manufacturing of power electronic components, photovoltaic equipment and components, and electrical complete sets, alongside sales of electrical complete sets. This supports classification as a manufacturer and supplier of industrial electrical and power-related products.

CertificationsThe supplier explicitly holds an ISO 9001:2015 management-system certificate. This is direct evidence of a recognized quality-management certification, although no additional certifications are stated.

After-Sales capabilityThe company states that it provides technical services and pre-sales, in-sales, and after-sales support, while its technology engineers provide technical support for production and after-sales service. Inventory capability is available, but the supplier has no overseas warehouse, so overseas service infrastructure is limited.

R&D capabilityThe supplier reports more than 40 years of technical experience, studies and applies new technologies, materials, and processes, provides 3D design services, and maintains design-input, output, review, verification, and validation documentation. However, it also reports only 3 R&D engineers and no new products launched in the past year, so the evidence demonstrates established technical capability but not recent product-output strength.

Production capacityThe supplier operates in relevant manufacturing fields, has standardized and uniformly followed finished-product inspection instructions, maintains inventory capability, and reports lead times of within 15 working days in the off-season and one month during peak season. Nevertheless, it has no valid manufacturing-capacity contract with related subcontractors, which limits evidence regarding outsourced production continuity.

Customization capabilityThe supplier explicitly offers 3D software design, customization from samples and designs, full, minor, and flexible customization, as well as OEM and ODM services. These statements provide direct evidence of broad product-design and customization capability, although no SDK is available.

Client casesThe supplier reports collaboration with Fortune 500 companies, a repeat-buyer preference of 50%–80%, and 20 years of export experience, with exports representing 31%–40% of total sales. These are direct indicators of established customer and international-market experience, although no specific customer names or project details are provided.

Product Q&A

Q:Are you a Manufacturer, factory or Trading company?

We are the manufacturer specializing in power transformer, inductor, and reactor production for 50 years.

Q:How can I trust you?

Our company, Lushan Electronic was founded in 1975 specializing in power transformer and reactor over 50 years, We have been cooperated with Fortune 500 companies such as CRCC, CRRC for over 10 years. We have many patent certificates CE certificate, TUV certificate, ISO9001 certificate. Our products are widely used all around the world. We believe that we can provide you products of good quality with competitive price.

Q:What's your major products?

Dry-type transformer, oil-immersed transformer, high voltage and low voltage transformer, line reactor, filter reactor, high-frequency transformer and reactor.

Q:What's your warranty terms?

We offer at least 12 months warranty time.

Q:Lead time for mass production?

7 to 25 working days or depending on order quantity.