DEVICE FOR ELECTRIC CURRENT MEASUREMENT, CURRENT INDICATOR, ELECTRIC UNCOUPLER AND UNCOUPLING DEVICE THAT INCLUDE SUCH A DEVICE FOR MEASUREMENT

摘要

Device for current measurement of Rogovskyi type that includes at least three coils (2) that are electrically connected in sequence and form closed polygonal circuit that surrounds the lead (7) for implementation of current measurement. Local inductivity at least near one of the ends (A) of those coils (2) is higher than local inductivity at central section (B) of those coils.