AN AUTOMATED SELF-TESTING DEVICE FOR TESTING OF THE MICRO-CONTROLLERS OF ELECTROSTATIC PRECIPITATORS ESPS FOR AIR POLLUTION IN MANUFACTURING PLANT

摘要

The invention relates to an automated self-testing device for testing of microcontrollers of electrostatic precipitators (ESPs) used for air pollution control in manufacturing plant comprising a self-test dongle (l)connectable to at least one micro-controller (2) of the ESP having a display module (3); a set up transformer and rectifier supplying power to the ESP connectable to a pair of thyristors, the thyristors being provided with on/off and gate control vial a plurality of relays driven by a digital output module (4) providing thyristor gate control for the ESP power supply and issuing warning and trip alarm signals; a digital input module (5) providing the on-line values of the field status input; an analog input module (6) indicating the voltage and current values of the ESP; a first and a second communication module (7,8) interfacing to a central monitoring and control system; a first plurality of links (9) provided between the digital input and output modules (4,5); a second plurality of links (10) provided between the analog input module (6) and the digital output module (6,4); a communication link (11) arranged between the serial communication channels (7,8) of the controller 2; a