Title: Monitoring device for cut-off/close of operating unit
Application Number: 99125888 Application Date: 1999.12.02
Publication Number: 1255718 Publication Date: 2000.06.07
Approval Pub. Date: 2005.12.14 Granted Pub. Date: 2005.12.14
International Classifi-cation: H01H9/54;H01H9/56;H01H33/59;H01H33/44;H02H3/00;H02H7/00
Applicant(s) Name: ABB Research Ltd. Address:
Inventor(s) Name: C. Seradar;R. Boerodi
Attorney & Agent: zou guangxin
Abstract:
    Control and monitoring device for actuating means for the opening/closing of operating elements comprising measuring means for the current and voltage and a processing unit equipped with means for performing the following functions: receiving in input from said measuring means signals indicating a succession of moments measured in which the voltage and/or current assumes a desired value; executing a predictive calculation of a succession of moments in which the current and/or voltage assumes said desired value; calculating, following an operating command, the time window for the opening/closing of said electric operating elements; sending a command to said actuator means; characterised by the fact that said processing unit: executes a first algorithm envisaging normal network operating conditions; executes a second algorithm envisaging non-normal operation of the network.
Time: 12
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