SJDB-SIII/2 multifunctional digital protector (hereinafter referred
to as the protector) adopts a single chip microcomputer as a main
control element, the digital processing and control technology is
applied to the protector, the protector has the advantages of being
high in speed, high in precision, strong in control function and
the like, and the man-machine interactive operation is more
convenient due to the adoption of Nixie tube display and button
1, the protector has the functions of the default loss, phase
current imbalance protection, overload, inverse time limit delay
overvoltage protection and fault parameter display.
2, the protector has the last-time fault parameter inquiry
3, the protector has the function of control parameter setting and
4, the protector has the displaying running currents.