What Is Power Monitoring CT?_
Power monitoring CTs produce a secondary current proportional to the primary conductor current, allowing meters to record amperage without direct series connection. They are placed on phase conductors inside PDUs, busways, or rack feeds to support energy logging and circuit protection. Output signals feed digital meters or building management systems for continuous data collection.
Technical Details
CTs rely on electromagnetic induction and require correct polarity orientation on the primary conductor. Split-core models permit installation around live cables without disconnection. Secondary leads connect to meter burden terminals, and the turns ratio must match the connected instrument. Open secondary circuits must be avoided to prevent hazardous voltages.
How Leviathan Systems Works with Power Monitoring CT
During rack commissioning, CTs are installed on the three-phase feeds to each GPU rack so that power draw from high-density GPU systems can be tracked in the site monitoring platform. Field crews verify CT orientation and secondary wiring before energization.
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GPU Rack Assembly & Rack-and-Stack →