Isolation current transformer for testing meters with interconnected current and voltage circuits The Precision Electronically Compensated Current Transformer CMR-I is a small-sized electronically compensated current transformer unit for isolated precision current transmission. The through-hole concept and single wire capability enable any user defined current ratio. The unit is dedicated for testing of electricity meters with closed current-potential circuits and for universal step-up/down current transformation applications with excellent accuracy and dynamics. Highlights Standalone through-hole precision electronically compensated transformer with single wire capability Excellent accuracy and dynamics Remote control via serial communication Monitoring of individual contact resistance and power loss Protection against open circuit and overload Programmable load by-pass Automatic unused position by-pass Easy prepaid and smart meters testing Easy implementation to existing systems Simple user test of functionality and accuracy Accuracy maintained for any up or down current transformation