Do you accept Factory Acceptance Tests (FAT)?

Certainly. We ensure each transformer undergoes rigorous testing and we are responsible for the complete testing process.

Do you assign engineers for after-sales service?

Yes, we provide comprehensive after-sales support, including installation guidance and addressing any inquiries.

Advanced 33/11kv Oil Immersed Transformer for Global Power Distribution

Name: Advanced 33/11kv Oil Immersed Transformer for Global Power Distribution
Brand: TSTY ELECTRIC CO., LTD.
SKU: 2136199005

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

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, delays deterioration, and virtually eliminates regular maintenance needs.

High Efficiency & Low Loss: Delivers excellent energy-saving benefits with low noise and exceptional efficiency for power distribution.

Customizable Voltage: Rated voltage can be customized to meet each customer's unique requirements and regional standards.

Robust Safety Features: Includes Buchholz relay, pressure relief device, and thermal relay to prevent explosions and damage.

Wide Application Scope: Suitable for mines, hospitals, airports, chemical plants, and critical infrastructure like nuclear power.

Comprehensive Warranty: Provides a minimum two-year guarantee for all transformers, ensuring product reliability and quality.

Professional After-Sales: Offers lifelong service system, online assistance, and dedicated engineer support for installation and debugging.

Global Certification: Complies with IEC, IEEE, ANSI, and GOST standards with CE, CCC, UL, and ISO certifications.

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: ≤7.94h 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, and HV and LV switchgear, established in the year 2011.

Q:Why should you buy from us rather than other suppliers?

With over 12 years of dedicated experience in transformer production, we hold numerous certifications including ISO9001-2008, OHSAS 18001:2007, ISO 4001:2004, CE, CCC, UL, and CSA. Our products comply with IEC, IEEE, ANSI, and GOST standards. We offer superior quality, rapid delivery, dependable after-sales service, and competitive factory pricing.

Q:How are transformers shipped?

For overseas delivery, transformers are shipped by ship, train, or truck. The main active body is shipped in bulk, while accessories are secured in wooden cases.

Q:Can your products be customized?

Absolutely. Given the variations in voltage, frequency, and other specifications across different countries and regions, we tailor our products to meet your specific requirements.

Q:Do you offer a guarantee for the products?

Yes, we provide a minimum of two years guarantee for all our transformers.