Rui Du Mechanical and electrical (Shanghai) Co., Ltd. is a professional manufacturer and system solution provider for the global supply of power testing equipment. Rui Du Mechanical and electrical (Shanghai) Co., Ltd. was established in 2014, which focuses on the independent design, development and production of high-voltage power test equipment. The products cover substation transformer, high voltage switch, mutual inductor, lightning arrester, storage battery, cable fault, relay protection, insulation withstand voltage, insulation grounding and oiling equipment, SF6 equipment testing, power generator testing, water cooling equipment testing, instrumentation, spare parts, power quality management. All products of the company have passed international IS09001 quality certification, IEC certification and CE certification.
The article focuses on a series of questions about tan delta test, such as what is a good tan delta value, etc.
1607-2025
This article will focus on the correlation and differences between VLF testing, TD testing and PD testing, and at the same time, you can find out which testing method is more suitable for your needs.
2907-2025
This article elaborates on the composition, calculation method and related factors of transformer loss. It focuses on transformer no load losses calculation.
2506-2024
