Current transformer CXM is an oil-filled, top core design for bi-directional metering. The transformer has oil insulated shield-graded construction intended for outdoor installations. A gas cushion on top of the oil hermetically seals the unit to prevent free-breathing of outside moisture-laden air.
The CXM has demonstrated excellent accuracy stability over the extremely wide current range (from 0.5 to 400% of nominal current), while also maintaining reliable performance in service with a low field failure rate which is below the industry average. This high accuracy, wide current range design has been installed all over the western hemisphere, from desert to arctic climates, for metering wide load current swings with precision not available from standard current transformers.