dc resistance test
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Transformer Multifunctional Tester
Transformers are the core equipment of power systems, and their long-term reliable operation is critical to overall grid stability. Efficiency grading, DC resistance, voltage ratio group, and insulation resistance tests are mandatory for transformer out-of-service maintenance. Traditional testing requires four separate instruments, which are bulky to carry and involve repeated disconnection and reconnection of specialized test leads—wasting substantial manpower, materials, and working hours. Wrindu has innovatively launched a four-in-one distribution transformer test system that integrates DC resistance, voltage ratio, insulation resistance, and efficiency grading into one compact unit. Powered by a high-capacity lithium battery, it supports single-wiring, multi-test operation, eliminating frequent lead changes and drastically boosting testing efficiency and convenience.
Email Details
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0512-2025
Wrindu Wins Ethiopian Electric Power Project Contract
Wrindu signs a new contract with ETHIOPIAN ELECTRIC POWER to supply transformer, switchgear, and CT/PT testing equipment, which supports Ethiopia's grid upgrade and GERD maintenance.
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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.





