The Professional Specialist of Electric Test Equipment

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.

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.

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Rui Du Mechanical and electrical (Shanghai) Co., Ltd
News
  • Transformer Comprehensive Test Bench Test Type

    The transformer comprehensive test bench is a professional equipment that integrates multiple test functions and is suitable for the performance evaluation of power transformers and distribution transformers. The equipment not only supports no-load and load characteristic tests, but also can perform double-frequency induction withstand voltage tests and power frequency withstand voltage tests. It is widely used in transformer manufacturing, installation and commissioning, and operation and maintenance.

    1501-2025
  • Significant cooperation agreement reached with Saudi transformer manufacturer

    During the visit, the general manager of our company had an in-depth exchange with the general manager of the customer company. The two sides had a heated discussion on the development trend of transformer manufacturing and testing technology, and agreed that high-quality testing equipment is the key to ensuring transformer performance and safety. "The customer's company" said that they are very satisfied with the quality and functions of our products, especially the advanced technology and high-precision measurement functions of these equipment, which fully meet their needs.

    0412-2024
  • Relay protection CT disconnection detailed explanation

    CT disconnection refers to the occurrence of circuit disconnection in the secondary circuit of the current transformer (CT), which will make the secondary side unable to transmit current signals normally to the relay protection device or measuring instrument. The main function of the current transformer is to reduce the large current in the high-voltage line to a safe level in a certain proportion to facilitate the measurement and protection of the equipment to work.

    2811-2024