Designed for direct start, stop and automatic switching of power supply of electric pump motors from the main network to the reserve network and back with the possibility of remote control of their work.
The products provide the following functions:
-automatic switching of power supply from the main network (in case of deterioration of power supply quality beyond the permissible values) to the reserve network and back (in case of restoration of power supply quality in the main network);
-protection of the electric motor against current overloads and phase failure of the supply network;
-zero blocking in case of voltage loss in the main and reserve networks during the electric pump operation;
-selection of the time of automatic switching to the reserve network and back;
-reliable operation at through short-circuit currents up to 10 Inom;
-galvanic isolation between the main and backup network, as well as galvanic isolation between power supply circuits and control and signalling circuits;
-remote control is carried out by means of a pulse signal...
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