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.
Wrindu has been cooperating with Uganda Electricity Transmission Company Limited (UETCL) since 2024, supplying high-voltage testing equipment for multiple 132kV substations including Kole, Gulu, Nebbi, and Arua. The equipment demonstrates stable performance, international compliance, and strong support for grid safety and substation reliability.
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Wrindu announces its Dragon Boat Festival holiday schedule for 2026. Our office will be closed from June 19th to June 21st, and normal operations will resume on June 22nd. During the holiday, response times may be delayed. Please contact us in advance for urgent inquiries. Thank you for your support and happy Dragon Boat Festival!
1906-2026
Learn how the RDXZ-270kVA/270kV AC Series Resonance Variable Frequency Withstand Voltage Test Device uses series resonance to provide safe, energy-efficient, and precise high-voltage testing for cables, transformers, and GIS systems.
0906-2026
Discover how Wrindu demonstrated series resonance testing, transformer DC resistance testing, tan delta testing, SF6 analysis, circuit breaker testing, and oil dielectric strength testing during a live factory visit with overseas customers.
2705-2026
