Measure current safely and
accurately without interrupting
the circuit.
Clamp style current transformers provide a simple way to measure current on energized conductors. By allowing installation without disconnecting the circuit, clamp CTs make current monitoring safer and faster during field investigations.
This white paper explains how clamp style CTs operate and how PMI’s TLAR and TLAR-S clamps are designed for practical use in power monitoring applications. It also reviews installation considerations that help ensure accurate current measurements in the field.
Key topics covered:
- What is a Current Transformer
- PMI’s TLAR CT Clamps
- Tips for Using PMI’s TLAR Clamps
Why utilities should care:
Accurate current measurements are essential during power quality investigations, system monitoring, and equipment troubleshooting. Clamp style CTs allow utilities to collect this data without interrupting service, but proper installation and understanding of the clamps is important to avoid measurement errors.
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