US 7,519,438 B2
Method and a tool for calculating and displaying fault response tolerances for a power switching device
Erskine R. Barbour, Benson, N.C. (US); and Varagur R. Ramanan, Cary, N.C. (US)
Assigned to ABB Technology AG, Zurich (Switzerland)
Filed on Nov. 09, 2005, as Appl. No. 11/269,925.
Prior Publication US 2007/0165340 A1, Jul. 19, 2007
Int. Cl. G05B 11/01 (2006.01); G01R 31/00 (2006.01)
U.S. Cl. 700—22  [700/286; 700/291; 702/58; 705/412; 345/418] 5 Claims
OG exemplary drawing
 
1. A configuration tool for configuring a power switching device including a controller, the configuration tool comprising:
a user interface including a configuration means and a fault response calculator, said user interface communicating with said controller,
said configuration means providing configuration information for said power switching device to said fault response tolerance calculator, said configuration information including pick-up current and overcurrent response curves, said fault response tolerance calculator computing fault response tolerances for the power switching device for a fault current from said configuration information, said fault response tolerances including at least one response time range for said power switching device at said fault current wherein said user interface transmits to the controller, the response the power switching device is to perform in response to the detection of a fault.