New Trig Functions for Detection of Earth Faults

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The 2012 model of Unipower UP-2210 is equipped with enhanced trig functions to enable an early warning system for the detection of emerging earth faults. The 2012 standard model is equipped with a trig function for the voltage sum U1+U2+U3 and an additional current sum I1+I2+I3+I4 is optionally available.

By monitoring the voltage or current sum, weak spots in the network can
be identified and replacement of damaged isolators can be made before they evolve into full scale earth faults. Large savings can be made from such preventive actions.

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