ELECTROMAGNETIC DEVICE FOR DISPLAYING CONDITION OF SWITCHING DEVICE ON SUPERVISOR'S INSTRUMENT BOARD Russian patent published in 2001 - IPC

FIELD: supervisory control facilities. SUBSTANCE: light-weight signal strip of electromagnetic device is free to turn on mosaic cell of supervisor's instrument board from horizontal to vertical position and vice versa by means of permanent magnet actuated by electromagnet. Electromagnet of each switching device is controlled from telemechanic means or through digital-to-analog converter from computer holding entire mimic diagram of power-generating unit. Proposed design of instrument board provides for real-time delivery of information concerning condition of switching devices of power-generating unit. Instrument board does not produce any irritating or tiresome impacts. EFFECT: enhanced reliability of display; reduced power requirement of instrument board. 1 dwg