

The performance of any system involving external current sensors is largely dependent on the interfacing and connection technique. This is more complex than commonly imagined and often represents the difference between a good and bad system.
The LEM-6 interface together with connection cables supplied as standard, provides a convenient and flexible solution for systems with up to 707 Arms on 3 to 6 phases.
Each phase has an individual DC-DC converter to optimise stability and 4 selectable burden resistor values. The 1 Ohm burden is used for full CT range measurements while the higher burden values provide additional measurement sensitivity in applications where a CT will continuously work in a low current region of its specified range.