Do you offer guarantee for the products?

Yes. We offer at least one year guarantee for all of our transformers.

What are your advantages?

15 years experience, Advanced production equipments, Stable quality, Fast delivery, Professional & good & Prompt service. Also some free parts can be provided for you.

High-Efficiency 300kVA Oil Electric Transformer for Global Distribution

Name: High-Efficiency 300kVA Oil Electric Transformer for Global Distribution
Brand: TSTY ELECTRIC CO., LTD.
SKU: 2161490935

Henan, ChinaTSTY ELECTRIC CO., LTD.

US$800.00

1 units

Product profile

Customization

Available

Phase

Three

Certification

ISO9001

Warranty

2 Years

Place of Origin

Henan, China

Use

Power

Standard

IEC / GB

Material

Copper / Aluminium

Model Number

S11

Brand Name

Tsty

Type

Oil-Filled Transformer

Coil Number

Autotransformer

Coil Structure

Toroidal

Vector Group

Dyn11 / Yyn0

Product Name

Power Transformer

Frequency

50/60Hz

Package

Wooden Case

Transformer Type

S11 Oil-Immersed Transformer

Key features

30% Lower No-load Loss: S9-M type offers 30% lower no-load loss compared to S7 model for superior energy efficiency.

Sealed Oil-Filled Design: Fully sealed design eliminates oil conservator needs, adapting seamlessly to temperature and load fluctuations.

High Lightning Resistance: Engineered with exceptional resistance to lightning strikes and short-circuits for enhanced safety.

Flexible Tank Structure: Flexible tank manages oil body changes, ensuring stable performance under varying load conditions.

Compact Outer Size: Reduced dimensions make it an ideal choice for modern energy management solutions with space constraints.

15 Years Industry Expertise: Backed by 15 years of experience, advanced equipment, and steadfast commitment to quality manufacturing.

Complimentary Spare Parts: Free spare parts provided to enhance customer satisfaction and product longevity.

Global Export Experience: Products exported to Mexico, Colombia, Indonesia, Nigeria, Zambia, and Malaysia with reliable service.

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: ≤9.36h 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:What are your major products?

Oil immersed transformer, dry type transformer, Transformer Substation, High and Low Voltage Switchgear.

Q:Can your product be customized?

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

Q:When can I get the price?

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

Q:What about lead or shipping time?

The lead time depends on the quantity you ordered, generally within 15 days upon receipt of advance payment.

Q:What is the price of shipping?

Depending upon the port of delivery, prices vary.