Finding reliable components for small voltage monitoring applications
I am currently looking into different options for compact voltage measurement in industrial circuits. There are many manufacturers around but it is hard to verify actual stability. Has anyone here tested miniature components for grid monitoring recently?
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I had a similar task a few months ago when designing a small monitoring board. It is always difficult to choose because specifications on paper do not always match reality. After comparing a few options I looked at the documentation on https://yuanxing.net/en/products/miniature_voltage/ potential transformer units to check their phase error and insulation parameters. The technical data sheet showed reasonable accuracy and decent galvanic isolation which is important for circuit safety. In my experience these components perform adequately under stable thermal conditions. They fit well on a standard printed circuit board and do not require extra space. You should verify your exact voltage ranges before buying anything because nominal currents can vary.