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Worker assembling a large coil in an industrial facility, wearing a blue helmet and uniform.Three-phase dry-type transformer with red coils, blue frame, and visible wiring connections.

PRESONALIZED CUSTOMIZATION

WELOME TO DDE TRANSFORMER

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DELONG ELECTRIC CO.LTD

The company mainly produces 110 KV and to the lower voltage grade products: S11, S13, S 20, S22 type oil immersed transformer, SCB1 0, SCB11, SCB12, SCB13, SCB14, SCB18 type epoxy cast dry transformer, SGB10, SGB11, SGB12, SGB13, SGB14, SGB18 type non-encapsulated dry transformer, SH15, SH21, SH25, SCBH15, SCBH17, SCBH19 type amorphous alloy transformer, three-dimensional triangle transformer, YBM pre-installed substation, ZGS type combined substation, photovoltaic power generation transformer, ...
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ABOUT US

Modern industrial building with "DDE" signage, three stories, and a clear blue sky in the background.
Certificates and awards displayed alongside industrial equipment, highlighting global recognition and quality.

CUSTOMER/PARTNER

Large electrical transformers secured on a flatbed truck under a cloudy sky.

ESI-PH- transformer

EDL-LA-YBM prefabricated substations 10-35KV

Loading large electrical cabinets onto a red truck in a factory with overhead crane assistance.

It features a highly efficient, energy-saving rolled core design. The core consists of silicon steel laminations and amorphous alloy, and is mounted using a pole-mounted suspension system. It has a compact size, requires minimal capital investment, reduces the low-voltage supply radius, and can lower low-voltage line losses by more than 60%.

With advantages such as a compact design, small footprint, safety, reliability, and ease of installation, this product can be deployed directly at the load center and can be relocated as the load center moves. Therefore, it is ideal for use in a wide range of locations, including construction sites, residential communities, high-rise buildings, airports, railways, subways, highways, oil fields, and ports and terminals.

Industrial transformer with cooling fans in a spacious factory setting.

35kv oil immersed transformer

35 kV oil-immersed power transformers for power system substations and 35 kV customer substations feature a core made of high-permeability, high-quality grain-oriented cold-rolled silicon steel sheets; the windings are arranged in a disc-type configuration; the core assembly uses molded insulating components; and the tank features a bell-shaped design with an expansion tank, resulting in an aesthetically pleasing and elegant appearance.

NEW PRODUCTS

oil-immersed transformer, dry-type transformer, amorphous alloy transformer, mining transformer, PV transformer, underground transformer, substation, switchgear and distribution box.

High efficiency • Low loss • Stable • Customizable

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OUR TEAM

Your reliable power solution partner

transformer bradleytransformer connor

Bradley_he

Sales manager

bradley_he@dlelec.com

Connor_zhu

Sales Manager

connor_zhu@dlelec.com

OUR PRODUCTS

Workers inspecting industrial transformers in a testing facility with labeled equipment.

High-Overload Transformer

Three Phase Pad Mounted Transformer

Industrial transformer in a spacious factory setting with bright blue flooring and metal structures.

The key benefit of an overload transformer lies in resolving the conflict between economic efficiency and reliability in scenarios with significant load variations between peak and off-peak periods; it both prevents short-term overloads from causing damage and avoids energy waste resulting from prolonged light loads.

The key advantages of three-phase American-style pad-mounted transformers lie in their extremely compact design, ease of installation, and safe operation, making them particularly suitable for urban underground power distribution networks and load centers.

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WORK SHOP 

We are a leading transformer manufacturer from China providing high-quality power transformers and electrical equipment. Our main products include oil-immersed transformers, dry-type transformers, amorphous alloy transformers, mining transformers, PV transformers, underground transformers, substations, switchgears and distribution boxes. We accept customization and offer fast delivery for global partners.

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Contact

DELONG ELECTRIC GROUP CO.LTD

Add:No.9 Guangye Rd,High-tech Industrial Park,Longli County,Qiannan Prefecture,Guizhou Province

Tel:+86-0854-5660018

Fax: +86-0854-5665099

Web:www.dlelec.com

Email:bradley_he@dlelec.com

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