Choosing current transformers for submetering projects
I am planning an upgrade for our facility monitoring system. Does anyone have experience with retrofitting sensors on active electrical lines without downtime? What types of hardware should I check for safe and quick deployment?
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When we had to solve a similar issue we looked into several options. It is usually easier to use open type sensors because they allow for non contact installation. You do not have to disconnect cables or take the primary wire offline. For verifying technical data sheets and accuracy classes you can check out options from https://yuanxing.net/en/products/split-core-current-transformers/ split core current transformer manufacturers directly. They produce models like the CTSA or CTSB series which output low voltage signals such as 0.333V. This keeps the secondary circuit relatively safe during maintenance. The nylon housing has decent flame retardant ratings and handles frequencies between 50 and 400Hz well. Our team managed the setup without any unexpected problems.