FIELD: electricity.
SUBSTANCE: universal electronic module for electric network distribution and protection against overload, leakage and short circuit currents can be used for right away disconnection of several loads from power supply in case of electric mains 380/220 V failure in residential and public buildings with possibility to set required disconnection parameters. This module in same housing is able to control four groups of loads, setting to them optimal parameters by rated current and leakage current. Module contains microcontroller, power elements (symistors), current sensors (current transformers), digital graphical display and control buttons. Using current transformers module microcontroller individually reads rated current value from each group of users, and using differential current transformers also individually reads leakage current from each group. Then microcontroller compares obtained values with specified, and in case of exceeding rated current or leakage current in any of groups of consumers according to specified algorithm issues command for disconnection to power element of group, in which specified parameters were exceeded.
EFFECT: providing instantaneous load group disconnection, by which parameters were exceeded, connected to module by means of three-contact terminals.
1 cl, 5 dwg
