Our main products include high-efficiency and energy-saving transformers, iron cores, box-type substations, high and low-voltage complete sets of equipment, new energy intelligent charging equipment and related supporting products.
Hebei Gaojing Electrical Equipment Co., Ltd. (hereinafter referred to as Gaojing Company) is located in Handan, Hebei Province. It is a modern enterprise integrating research and development, production and sales of high-efficiency and energy-saving transformers, high and low-voltage complete sets of equipment, box-type substations, new energy intelligent charging equipment and related supporting products.
2008
Founded in
100000 m2
Company area
6 +
High-standard automated production workshop
600 +
Staff
Gaojing Company adheres to the principle of "innovation driven, green rise" and deeply cultivates the fields of efficient and energy-saving transmission and distribution, as well as new energy. Its main products include high-efficiency and energy-saving ...
Our Story Begins Here
Sep 17, 2026
When I explain What are the three main parts of a box type substation?, I identify three integrated sections: the high-voltage switchgear compartment, the distribution transformer, and the low-voltage distribution compartment. Medium-voltage electricity enters through the high-voltage section, passes through the transformer for voltage conversion, and leaves through low-voltage feeders for
Sep 16, 2026
When I compare a unit substation with a box type substation, I begin by separating electrical function from physical enclosure design. A unit substation describes coordinated transformer-and-switchgear integration, while a box type substation primarily describes compact equipment installed inside a protective enclosure. The same installation may satisfy both descriptions, depending on its wiring
Sep 15, 2026
If you are asking What are the 7 transformer types?, the answer depends on how transformers are classified. A practical seven-category guide includes step-up, step-down, isolation, power, distribution, instrument, and dry-type or liquid-filled transformers. These categories overlap because one transformer may be three-phase, step-down, liquid-filled, and designed for distribution at the same time.
Sep 14, 2026
What is a box type substation? It is a factory-assembled, enclosed power distribution unit that integrates medium- or high-voltage switchgear, a distribution transformer, and low-voltage equipment in one compact enclosure. It reduces incoming voltage to a usable level and distributes electricity safely to commercial, industrial, infrastructure, or renewable-energy loads. I generally describe it
Sep 14, 2026
When I compare oil immersed transformer vs dry type transformer designs, I begin with the cooling medium, insulation system, installation environment, load profile, fire requirements, and lifecycle cost. Oil-immersed units generally suit outdoor substations, utilities, high-capacity systems, and higher-voltage applications, while dry-type units commonly suit indoor commercial buildings,
Sep 14, 2026
What You Need to Know about Oil-immersed Transformer starts with one basic definition: an oil-immersed transformer is an electrical transformer whose core and windings are submerged in insulating liquid. The liquid provides dielectric insulation between energized components and transfers heat from the windings and core to the tank, radiators, or cooling equipment. These transformers are widely
Navigation
Navigation
Contact Us
Tel: +86 188 3000 9955
E-mail: gjscb@hbgjdq.com
WeChat: zjj9232013
Add.: No.118, Luchan Road, Yongnian District, Handan City, Hebei Province, China
Send in Inquiry
Send in Inquiry