DEVICE FOR PROTECTING ELECTRICAL APPLIANCES FROM COMMUTATION OVER- VOLTAGES IN MULTIPHASE NETWORK

摘要

Usage: in electrical protection from overvoltages asynchronous motors. The inventive device comprises a number of protective chains network phases, each of which consists of two pulsed diodes, current-limiting resistor, the two dynamic memory elements, respectively, positive and negative actuation protection levels, each of which consists of a capacitor, zener diode, the correcting resistor. Dynamic storage elements are allowed to use the device for switching: bypass circuits and motors with windings overvoltage x diode circuits that po-; Witzlaus protection reliability, have yl.