What are your payment terms?

We accept T/T, T/C, or negotiation for payment terms.

How do you conduct quality control?

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

Can your products be customized?

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

What information is needed for a customized transformer?

Technical drawings are best, or you can provide power (capacity), voltage, installation size limitations, insulation class, etc.

When can I get the price?

We usually quote within 24 hours after receiving your inquiry.

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

Name: 20va 1140V/380V Power Isolation Dry Electric Step Down Transformer Manufacture for Mining to Power Supply with Three Phase
Brand: Changsha Lushan Electronic Technology Co., Ltd.
SKU: 2081649612

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

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

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

Robust Certification: Certified by ISO9001, CE, TUV, and PSE, ensuring high quality and safety standards.

Flexible Customization: Supports full customization, minor customization, and flexible options based on designs or samples.

Fast Lead Time: Mass production lead time ranges from 7 to 25 working days depending on order quantity.

Strict Quality Control: 100% QC inspection implemented with 8 checkpoints from raw materials to final products.

Proven Manufacturer: Established in 1975 with 50 years of experience, cooperating with Fortune 500 companies.

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: ≤0.85h

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 or trading company?

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

Q:How can I trust your quality?

Lushan Electronic was founded in 1975 with over 50 years of experience. We cooperate with Fortune 500 companies, hold CE, TUV, and ISO9001 certificates, and provide good quality products at competitive prices.

Q:What are your major products?

Our major products include dry-type transformers, oil-immersed transformers, high and low voltage transformers, line reactors, filter reactors, high-frequency transformers, and reactors.

Q:What are your warranty terms?

We offer at least 12 months warranty time for our products.

Q:What is the lead time for mass production?

The lead time is 7 to 25 working days, depending on the order quantity.