

At CNSOVIO, we are experts in the research, development, and manufacturing of high-voltage transmission and distribution equipment. For years, we’ve focused on innovation and continuous improvement, integrating cutting-edge technology and rigorous quality testing. Our dedication ensures every product, from vacuum circuit breakers to switchgear and fuses, meets the highest global standards.


Provide free technical consulting to help clients select the most suitable product solutions
Offer product customization services based on special application requirements
Provide product operation and maintenance training services for clients
Respond to inquiries within 6 hours, provide solutions within 48 hours






















The functional differences between a recloser, a circuit breaker and a sectionalizer, how the three coordinate to isolate a faulted section, and which arrangement suits


How an HRC fuse is built and why it can interrupt 100 kA: element, tin joints and silica sand filler, the main types, the ratings


A power fuse is the complete device; a fuse link is the replaceable element inside it. How to tell them apart, match ratings and characteristics,
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