What is the conversion efficiency of the power transformer?

Power transformers exhibit high conversion efficiency, typically exceeding 95%, meaning only a small amount of energy is lost during power transmission.

Can the winding material be customized?

Yes, the winding material can be customized as Copper or Aluminum per design requirements.

50mva Three Phase Oil Liquid Immersed Type Power Distribution Electrical Transformer

Name: Substation 10/20/30/40/50mva Three Phase Oil Liquid Immersed Type Power Distribution Electrical Transformer
Brand: Jiangsu Daelim Electric Co., Ltd.
SKU: 1977271461

Jiangsu, ChinaJiangsu Daelim Electric Co., Ltd.

US$85,000.00-260,000.00

1 unit

Sample price:US$125000.00/unit.Request sample

Product profile

Customization

Available

Application

Power, Electronic, Electric

Phase

Three

Core

Core-type Transformer

Cooling Method

Oil-immersed Type Transformer

Winding Type

Two-winding Transformer

Certification

ISO9001-2000, ISO9001, UL, cUL CE

Usage

Power Transformer, Utilities/New Energy

Frequency Characteristics

50/60Hz

Shape of Core

Stacked Iron Core

Brand

Daelim Belelfic

Product Name

Immersed Power Transformer 25000 kVA Transformer

Rated Primary Voltage

220kv 138kv 132kv 110kv 69kv 66kv 63kv 60kv

Rated Secondary Voltage

35kv 37kv 38.5kv 11kv 10.5kv 6.6kv

Power

20mva-200mva

Frequency

50Hz/60Hz

Standard

IEC ANSI IEEE

Winding Material

Copper\Aluminum

H.V. Tap Range

±2*2.5%

Impedance

6.5, 10.5, 17~18 (%)

Customized

Feature

High Frequncy Distribution Transformer Oil

Connection Symbol

Ynyn0d11 Ynd11

Short Circuit Impendence

12-14

Warrety

24months

Oil Type

Mineral or Vegetable Oil

Transport Package

Wooden Case

Specification

Depending on your product

Trademark

Daelim Belefic

Origin

China

Production Capacity

25/ Quarter

Key features

Global Local Support: Professional local installation and maintenance teams in North America, South America, Australia, and Africa.

High Efficiency Design: Conversion efficiency typically exceeds 95%, ensuring low loss and stable long-term operation.

Wide Capacity Range: Available in power ratings up to 300 MVA and high voltage ratings up to 345 kV.

Strict Quality Control: UL third-party agency regularly inspects manufacturing process to ensure high quality standards.

Flexible Customization: Accepts OEM/ODM and full customization for voltage, frequency, winding material, and standards.

Robust Insulation: Provides excellent insulation between voltage levels, preventing damage and ensuring safe operation.

Low Maintenance Cost: Long service life and stable performance result in relatively low maintenance costs over time.

Advanced Core Design: Uses Japanese Toshiba analysis software for optimal core and winding design with omni-directional validation.

Company profile

In-stock CapacityProduct Certification100% Finished Products InspectionOverseas Warehouse

Jiangsu Daelim Electric Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Full Customization, Flexible customization, etc. CertifiedExport Year: 5 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤3.00h

AI-Powered supplier vetting

SummaryThe supplier operates in electrical and electronic equipment-related manufacturing, sales, and technical services, while also being identified as a trade company with a combined company type. It demonstrates multiple certifications, including product compliance certifications and ISO9001:2015, ISO45001:2018, and ISO14001 management-system certifications. Export capability is substantial, with 71%–90% of sales from exports, six export staff with 6–10 years of experience, and 19 experienced export staff in total. The supplier offers minor, full, and flexible customization, ODM services, and OEM services for popular brands. Production evidence includes eight production lines, but there is no continuous quantity reconciliation for each batch or mass production. Quality controls include traceability, standardized inspection instructions, and maintained records; however, complaint handling has procedures but no written records. The supplier has overseas warehouses and agents or branches, but no overseas...

CertificationsThe supplier reports UL and other product compliance certifications, together with ISO9001:2015, ISO45001:2018, and ISO14001 management-system certifications. These explicitly demonstrate broad product and management-system certification coverage.

R&D capabilityThe supplier provides ODM services, has four R&D engineers, and offers minor, full, and flexible customization. However, it does not have an available SDK, so the evidence supports product-development and customization capability but not SDK-based innovation support.

Production capacityManufacturing scope includes rectifiers, inductors, and distribution switch control equipment, with eight production lines reported. Quality processes include standardized finished-product inspection instructions, raw-material traceability, and maintained records, but the factory does not continuously reconcile quantities for every batch or mass production.

Customization capabilityThe supplier explicitly offers minor customization, full customization, and flexible customization, as well as ODM services and OEM services for popular brands. These statements provide direct evidence of broad customization and contract-manufacturing capability.

Product Q&A

Q:What services can we provide?

We accept customization/OEM/ODM or according to your requests. We also provide professional technical solutions and professional after-sales service with local teams in America, Australia, Africa, and many other places to solve any problems in a timely manner.

Q:How long does the delivery time take?

The usual shipping lead time is around 20-30 days after payment, depending on the quantity you need.

Q:How long is the quality guarantee period?

Our company offers a quality assurance period of 24 months. If you need a longer period of time, we can provide you with an after-sales extension.

Q:What is the maximum power rating available?

Daelim's power transformers are made in power ratings up to 300 MVA (ONAN) with high-voltage ratings through 345 kV.

Q:What certifications are available for the transformers?

Various international standards can be customized, such as IEEE/ANSI, AS/NZS, IEC, EN 60076, GOST, etc. Daelim produces transformers with UL/cUL, CESI certifications.