Apparatus for displaying current supervisory function

摘要

The present invention provides a current monitoring function display device for setting the current state of each phase of the power line, current unbalance rate, frequency, etc. in various modes and displaying the current state digitally according to the setting mode. do.;To this end, the present invention is a current monitoring device for monitoring the current state of each phase by receiving a current value for the power line of the A phase, B phase, C phase from the current transformer, the current value, the current excess ratio for each phase of the power line To set the current unbalance rate and frequency selectively, and to set the display ratio and current unbalance ratio and current unbalance duration, current over ratio and current over duration of the current transformer. A display unit for displaying the current value, the current excess ratio, the current unbalance rate, and the frequency for each phase of the power line based on the display ratio, the current unbalance ratio, and the current excess ratio of the current transformer determined according to the function setting of the setting unit; Selected phase according to the current transformer ratio, current unbalance ratio and current excess ratio of each phase set by the function setting of the setting section Characterized in that the current value and a current greater than the ratio, ratio of current imbalance, the frequency configured with a control unit for controlling to display on the display portion.