News
You may ask about tan delta test
The article focuses on a series of questions about tan delta test, such as what is a good tan delta value, etc.
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2107-2025
wrindu revisits vietnamese customers
Mr. Qin, CEO of Ruidu Mechanical and electrical (Shanghai) Co., Ltd, visits Vietnam to deepen customer relationships and collect valuable feedback.
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0412-2024
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.
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1911-2024
On-site training and teaching of insulating oil gas chromatograph
Today, an Indian customer who bought our oil chromatograph tester returned to our company. This is his second time participating in the remote video training of an insulating oil gas chromatograph. This customer bought our gas chromatograph in May. To further improve the efficiency of equipment use, the customer specially applied for this training opportunity from our company.
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1407-2025
substation test equipment bid winning
Ruidu Company's bid submitted in response to the Procurement of Design, Manufacture, Test, and Supply of Substation Testing Equipment for Lot_2 has been evaluated.
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0107-2023
Rui Du Mechanical and electrical (Shanghai) Wins Bid for Ethiopia DDAHD Project
Rui Du Mechanical and electrical (Shanghai) Co., Ltd. is honored to have won the bid for the POWERCHINA Hydropower Bureau International Company Ethiopia DDAHD Electrical Instrument Procurement Project!
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3007-2025
DC High Voltage Generator current trends
High Voltage Generator features advanced high-frequency circuit, PWM technology, and double closed-loop control.
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2207-2025
What is vacuum oil filter?
The article will focus on vacuum oil filters. It aims to purify oils, remove contaminants and extend oil life.
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2910-2024
Safety measures of the three-channel DC resistance test instrument
The operational safety and high efficiency of the three -channel DC resistance test instrument are inseparable. The standardized operation can ensure its long -term stable operation and avoid unnecessary damage or safety hazards.
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2510-2024
Application of Transformer Comprehensive Testing Instruments
The transformer comprehensive testing instrument, as a specialized device, can efficiently and accurately conduct comprehensive tests on transformers. This article will delve into the applications, working principles, and significance of transformer comprehensive testing instruments in practical operations.
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2310-2024
Analysis of the working principle and operation steps of SF6 micro-water tester
The SF6 micro-water tester is an indispensable detection equipment in the power system. Its accurate measurement of trace moisture in SF6 gas is of great significance to ensure the normal operation and safety of power equipment. This article will introduce the working principle and operation steps of the SF6 micro-water tester in detail, providing technical reference for industry insiders.
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2110-2024
Instructions and precautions for using AC/DC digital voltage divider
AC/DC digital voltage divider The AC/DC voltage divider adopts the equipotential shielding method, has high measurement accuracy, digital display, and has the advantages of high accuracy, stable performance, simple structure, small size, light weight, easy to carry, convenient to use, intuitive display, and high measurement accuracy.
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3010-2023
Global Power Industry Achieves Breakthroughs in Green Energy and Digital Transformation
2023.10.30— The power industry is undergoing a revolutionary transformation to meet the growing demand for electricity while focusing on reducing its environmental impact. Innovative initiatives worldwide are driving the power sector towards a greener and more digital future.
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3107-2025
CT and PT Testing Procedure
This article will focus on the CT and VT testing procedure, and will also describe some specific operational details.
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2008-2025
From Principle to Early Warning: Detection and Prediction of Generator Rotor Winding Short Circuit
Explore generator rotor and stator principles, and learn how rotor winding short-circuit issues are detected and predicted for reliable operation.
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1408-2025
What exactly is a lightning arrester used for?
Learn the role and purpose of lightning arresters, how they differ from surge protectors, their working principles, and tips for choosing lightning test equipment.
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0708-2025
Other Necessary Tests about Transformer
The article will focus on other necessary tests about transformer, such as AC withstand Voltage Test, Insulation dielectric performance test, Winding DC resistance measurement, CVT and so on.
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0608-2025
Necessary Tests about Transformer
This article will describe the necessary tests for transformers, focusing on insulation resistance measurement, dielectric loss factor and capacitance measurement, and partial discharge testing.
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0608-2025
You may ask about Equipment Grounding
This article mainly introduces the relevant regulations for equipment grounding, grounding system and grounding impedance measurement.