Do you accept FAT (Factory Acceptance Test)?

Yes, it's available. We ensure comprehensive testing for each set of transformers.

Do you assign engineers for after-sales service?

Yes, we provide after-sales guidance for installation and address any inquiries you may have.

Reliable Oil Immersion Transformer for Optimal Electricity Distribution

Name: Reliable Oil Immersion Transformer for Optimal Electricity Distribution
Brand: TSTY ELECTRIC CO., LTD.
SKU: 2136290685

Henan, ChinaTSTY ELECTRIC CO., LTD.

US$2,558.00

1-2 Sets

US$2,458.00

3+ Sets

Sample price:US$2458.00/set.Request sample

Product profile

Customization

Available

Application

Power, Lighting

Phase

Three

Model NO.

S13

Core

Core-type Transformer

Cooling Method

Oil-immersed Type Transformer

Winding Type

Two-winding Transformer

Certification

ISO9001-2000, ISO9001, CCC, CE

Usage

Power Transformer, Distribution Transformer

Frequency Characteristics

Power Frequency

Shape of Core

Ring

Brand

Tsty

Product Name

Oil Immersed Transformer

Type

Oil-Filled Transformer

Material

Copper / Aluminium

Standard

IEC / GB

Transformer Type

S11 Oil-Immersed Transformer

Vector Group

Dyn11 / Yyn0

Warranty

2 Years

Package

Wooden Case

Frequency

50/60Hz

Coil Material

Aluminum/Copper

Connection Group

Yyn0/Dyn11

Transport Package

Wooden Case or Pallet

Specification

IEC/ANSI/IEEE

Trademark

TSTY

Origin

China

HS Code

8504220000

Key features

Fully Sealed Design: Eliminates oil conservator, prevents oil deterioration and insulation aging for maintenance-free operation.

Wide Capacity Range: Available from 50 kVA to 5 MVA to cover diverse power distribution needs.

Customizable Voltage: Rated voltage can be customized to meet specific customer requirements.

High Efficiency & Low Loss: Features low loss, low noise, and high efficiency for excellent energy-saving performance.

Comprehensive Certifications: Certified with ISO9001, CE, CCC, UL, CSA, and OHSAS standards.

Flexible Connection Groups: Offers Dyn11 and Yyn0 connection groups, customizable upon request.

Dual Coil Material Options: Coils available in Aluminum or Copper to suit different application needs.

Lifetime Technical Support: Resolution provided within one working day with regular technician visits for long-term safety.

Company profile

Importers and Exporters100% Finished Products InspectionProduct CertificationProduction Process Visualization

TSTY ELECTRIC CO., LTD.

Henan, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2020-06-01 CertifiedNearest Port: Qingdao Port,Average Response Time: ≤8.24h CertifiedTerms of Payment: LC, T/T, PayPal, etc.

AI-Powered supplier vetting

SummaryThe supplier is a limited company with 513 employees and no stated parent group. It offers oil-immersed and dry-type transformers, transformer substations, and high- and low-voltage switchgear. Production evidence includes four production lines, stated annual output for several product categories, broad export coverage, and off-peak lead time within 15 workdays. The supplier demonstrates R&D, ODM, OEM, private-mold, 3D design, and sample/design customization capabilities, but has no available SDK. Certifications include ISO 9001:2015, ISO 45001:2018, ISO 14001, CE, and UL. Overseas agents or branches, inventory capability, and participation in ELEKTRO 2026 are reported, while overseas warehouses and showrooms are unavailable. Financial information is identified for 2023–2025, but no financial performance values are provided. Customer references are limited to stated OEM service for popular brands.

Supplier typeThe supplier is a limited company, is not stated to belong to a larger company group, and operates in power equipment and electrical-component sales, including transformers, switchgear-related equipment, and associated electrical products. This identifies a specialized electrical equipment supplier rather than a general trading entity, although the stated number of cooperative suppliers is zero and the business scope excerpt is incomplete.

CertificationsThe supplier reports ISO 9001:2015, ISO 45001:2018, and ISO 14001 certifications, along with CE and UL product-certification capability. These explicitly support quality, occupational-safety, environmental-management, and product-compliance capabilities.

After-Sales capabilityThe supplier reports 100 qualified service-capability suppliers, documented procedures and records for supplier assessment, and a corrective and preventive action mechanism. It also has inventory capability and overseas agents or branches serving Tanzania, Zambia, Ghana, and other countries, but has no overseas warehouse or showroom; the available evidence supports service infrastructure but not complete global after-sales coverage.

R&D capabilityThe supplier reports private-mold R&D, professional technical-supplier capability, 3D software design, new products within the past year, ODM services, and OEM services for popular brands. However, it explicitly has no available SDK, so innovation capability is demonstrated in product and design development but not across all technical interfaces.

Production capacityThe supplier operates four production lines and reports output of 6,000 substations, 10,000 oil transformers, 5,400 switchgear units, and 11,000 dry-type transformers, with off-peak lead time within 15 workdays. It has in-stock capability and broad export markets, but no valid contract with an associated subcontractor, which is a stated manufacturing-governance gap.

Customization capabilityThe supplier explicitly provides customization from samples and designs, private-mold development, 3D software design services, ODM, and OEM services. These capabilities directly support customized product development and manufacturing.

Product Q&A

Q:Who are we?

We are a leading professional manufacturer specializing in oil-immersed transformers, dry-type transformers, transformer substations, HV and LV switchgear since 2011.

Q:Why should you buy from us and not from other suppliers?

With 12 years of dedicated experience in transformer production, we hold ISO9001-2008, OHSAS 18001:2007, ISO4001:2004, CE, CCC, UL, CSA, and TYPE TEST REPORT certifications.

Q:How are transformers shipped?

Transformers are typically delivered by ship, train, or truck for overseas transport, with the main active body shipped in bulk and accessories in wooden cases.

Q:Can your products be customized?

Yes, considering the variations in voltage, frequency, and other specific requirements of transformer products across different countries and regions, we offer customization according to your needs.

Q:Do you offer a guarantee for the products?

Absolutely. We provide a minimum of two years guarantee for all of our transformers.