1. Who we are

HAOMAI Electric Power Automation - Expert in Relay Testers & CT AnalyzersCompany OverviewWuhan HAOMAI Electric Power Automation Co., Ltd. (brand: Relaystar) is a leading manufacturer of relay protection testers, CT analyzers, and power testing equipment. Established in 1999, HAOMAI specializes in high-precision devices for utilities, substations, and industrial power systems.

Beijing GFUVE Electronics Co., Ltd. Was established in 2005. It combined science, industry and trade together as one high-tech enterprise. GFUVE mainly produces split core current transformer, high voltage ammeter recorder, IEC61850 test suite software, meter test equipment, current probe, reference standard meter, phantom load power source, electrical measurement instrument, relay test set, transformer test, CT analyzer, Test equipment, and power meter, power analyzer, intelligent digital meter, transducer, handheld terminal and split core current transformer, voltage transformer and current transformer models etc.

Wuhan Goldhome Hipot Electrical Co., Ltd was established in 2008, with the double efforts to struggle under more than ten years' diligent hard-working and adhere to spirit of keeping truth-seeking and pragmatic, exploring one professional road with competitive development in the electric and power testing field.

Chongqing Gold Mechanical & Electrical Equipment Co., Ltd is a high-tech enterprise for researching, designing, developing and producing scientific and measuring instruments. With its continuous drawing of lessonas, unremitting innovation and borrowing of advanced technology from both at home and abroad, our company is now becoming a professional manufacture of oil tester, electric tester, fire testing equipment, and oil purifier.

? ? ? Qingdao Naxin Xiangyuan Electrical Equipment Co., Ltd., headquartered in Qingdao, Shandong Province, is a leading technology enterprise with professional testing qualifications. The company specializes in the research, development, and manufacturing of high-precision testing equipment, offering a range of products including high-current generators, thermal relay testers, frequency converters, circuit resistance testers, temperature rise testers, and constant-current power supplies. We provide reliable products and professional services to global customers, committed to enhancing testing efficiency and ensuring product quality.

We are a power system product manufacturing enterprise that focuses on distribution network automation products and integrates design, research and development, production, and sales.

Sansion Power Electric Co., Ltd was established in 2005, a technocrat who have rich experience of more than 10 years in R&D, manufacturing and marketing of power electrical testing products, which are widely used in the fields of power electric, railroad, energy conservation and environment protection, water conservancy, petrochemical industry, aerospace and etc.

Located at Chongqing city--a southwest electromechanical manufacturing center as well as national municipality, Chongqing TOP is a professional leading manufacturer and supplier of oil purifiers and various related testers. We consists of departments respectively for technological development, machinery manufacture, instrument manufacture, quality control etc. On basis of mature development and manufacture technology and highly qualified production management team, the products own high quality, easy operation, excellent performance and lone service life.

Guangzhou Coilcore Electronic Technology Co., Ltd founded in 1995, as a leading manufactures and supplier of R&D, manufacture amorphous core, Nanocrystalline core, CT (Current Transformer), Inductors, and Transformers, Our range comprise of: