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.
Refers to the ability to react to fault conditions within the specified protection range. A protective device that meets the sensitivity requirements shall be able to react sensitively and correctly to a fault within the zone, regardless of the location of the short-circuit point and the type of short-circuit.
2507-2024
Recently, the cooperation project between our company and Uganda UETCL 132kV substation has achieved remarkable results, and the power testing equipment procurement contract worth 6.3 million RMB (about 900,000 US dollars) has entered the shipment stage successfully. After a strict three-day video inspection process, the owner was highly satisfied with the professional inspection capability demonstrated by our company, and both parties quickly completed the final signature confirmation and started the shipment process.
2407-2024
Under normal circumstances, the battery with small internal resistance has a strong high-current discharge capacity, while the battery with large internal resistance has a weak discharge capacity. When the battery is in different power state, its internal resistance value is different; when the battery is in different service life state, its internal resistance value is also different.
2307-2024
