Substation Power Transformer

These transformers are ideally suited for substation yards and distribution lines, facilitating the conversion of voltage levels between high transmission voltage and low distribution voltage, or the connection of two independent transmission voltages. They are also remotely monitored and controlled by the control system.

With over 20 years of project experience in the international market, Daelim Transformer is proficient in ANSI/IEEE, CSA, AS/NZS, IEC, EN, NEMA, and other standards. Our substation power transformers hold UL, CSA, CE, ISO, and other certifications. Hundreds of substation transformers are exported to North America annually. We can customize power substation transformers for any of your projects.

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Substation Power Transformer

Capabilities

Capabilities

Daelim Transformer's liquid filled distribution substations and power substation transformers are meticulously designed, constructed, and tested by the highest industry standards, including NEMA, ANSI C.57, IEEE, DOE, AS, and EU. With a range of customizable features, The substations transformer can be tailored to optimize performance, minimize potential arc flash exposure, and address environmental concerns. All designs can be supplied with full or partial-length air terminal chambers to facilitate easy installation.

Product Scope:

300 kVA - 500,000 kVA
Up to 345 kV

Technical Specs

Technical Specs

Standard Features

  • Type II non-PCB mineral oil (ONAN)
  • High-grade silicon-steel core
  • Aluminum windings (distribution class)
  • Off-load tap changer
  • Reinforced carbon steel tank
  • Externally clamped high- and low-voltage bushings
  • Pressure relief valve
  • Pressure vacuum gauge
  • Liquid temperature indicator
  • Oil level indicator
  • Drain and sample valve
  • Nitrogen blanket;    65 ℃ rise

Optional Features

  • Environmentally friendly, high fire-point vegetable oil (KNAN)
  • On-load tap changer; Auxiliary control cabinet
  • Stainless steel tank;  Gauges with contacts
  • Winding temperature indicator
  • Fan package (ONAN/ONAF)
  • Pressure relief device
  • Sudden pressure relay
  • Step-up solar and wind duty design
  • Electrostatic shielding; Lightning arresters
  • K-rated design(0-20);  55/65 ℃ rise

Get Started

We make it easy to get a quote and order a transformer. Follow the steps below to get started.

01
Request a Quote

Call or fill out the form below to get a quote. Most quotes are turned around the same or next-day.

02
Place your order

Send us a purchase order and we will quickly design the transformer drawings and confirm them with you within 2-4 weeks after receiving the advance payment. Once the plan is confirmed, we will immediately start the production process. Your dedicated customer service representative will send you an order confirmation and answer any questions you have.

03
Production tracking

Daelim Transformer will generate a unique production tracking code for each of your orders. You can monitor the production progress of your transformer at any time through our customer service system.

Canadian 69 kV Substation Transformer Project

Today, we are excited to present a case study on a 69 kV substation transformer project by Daelim Transformer. Our Canadian client required a step-down transformer for their substation to connect with the hydroelectric grid in Quebec.

  • Rated Capacity: 10/13.3MVA
  • Primary Voltage: 69 kV
  • Secondary Voltage: 4.16 kV
  • Connection Symbol: YNd1
4000 kVA Three Phase Power Transformer For Canada

A Canadian customer has shared photos with us, showcasing the installation and operation of two 4000kVA transformers designed and produced by Daelim Transformer. The transformers have received highly positive feedback from the customers, who found them to be efficient and expressed satisfaction with the collaborative experience working with the Daelim Transformer team. We look forward to further expanding our cooperation with Daelim Transformer in the future.

20MVA Power Transformer for the United States

This project involves the development of a 20 MVA three-phase power transformer tailored for the United States market. The primary voltage is 24.94kV, and the secondary voltage is 4.16kV, indicating it functions as a step-down transformer. The design and production fully comply with IEEE C57.12.00 standards and have passed third-party UL team testing. All accessories also adhere to IEEE standards. FR3 vegetable oil serves as the insulating liquid for the transformers.

Three Phase Power Transformers for Bitcoin Mining

Daelim Transformer thrilled to share details of our project - the supply of 90 units of three-phase power transformers for a large-scale Bitcoin mining operation in Odessa, Texas. Each transformer is rated at 2500(3000)KVA with a primary voltage of 34.5kV Delta and a secondary voltage of 480GrdY/277. With strict UL certification requirements and a focus on high-quality accessories from reputable brands, this project demanded precision, efficiency, and reliability.

230 kV Three Phase Power Transformer For USA

In 2023, Daelim Transformer designed and manufactured a cutting-edge 230 kV three-phase power transformer for a client in Nevada, USA. The client recently shared installation and operational photos, showcasing the successful deployment of this remarkable transformer. Let's delve into the specifics of this transformer project!

1500 kVA Transformer for Australian Mining

Introduce the 1500 kVA transformer tailored for Australian mining projects. The transformer operates in a three-phase configuration, with a total of four units deployed. Notably, its primary voltage stands at 11kV, while the secondary voltage is 1kV. Characterized by its compact size, emphasis on safety, and unwavering reliability, this transformer is meticulously designed and manufactured to meet the stringent requirements outlined in AS 60076 and AS efficiency value standards.

Live front & Dead front transformer