EP 2145112 B1 20181128 - DEVICE AND METHOD FOR FAULT MONITORING
Title (en)
DEVICE AND METHOD FOR FAULT MONITORING
Title (de)
EINRICHTUNG UND VERFAHREN ZUR STÖRUNGSÜBERWACHUNG
Title (fr)
DISPOSITIF ET PROCÉDÉ DE SURVEILLANCE DE DYSFONCTIONNEMENTS
Publication
Application
Priority
- DE 102007022348 A 20070512
- EP 2008003639 W 20080507
Abstract (en)
[origin: WO2008138520A1] The invention relates to a device (1) for the fault monitoring of a centrifugal pump driven by an electric motor at variable speed, and to a method for fault monitoring using such a device (1). The device (1) captures operating values of the motor prior to activation of the fault monitor, stores said values, keeps them available and compares current operating values of the motor during fault monitoring to the stored values. The device (1) evaluates a current motor operating point (55) relative to a prescribed, limited operating range (52) of the motor and establishes a fault (36) if said operating range (52) is no longer met. The limited operating range (52) is thus formed by motor operating points.
IPC 8 full level
F04D 15/00 (2006.01); F04D 15/02 (2006.01)
CPC (source: EP)
F04D 15/0066 (2013.01); F04D 15/0088 (2013.01); F04D 15/0236 (2013.01); F05D 2260/80 (2013.01); F05D 2270/335 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102007022348 A1 20081113; CN 101680457 A 20100324; CN 101680457 B 20120704; EP 2145112 A1 20100120; EP 2145112 B1 20181128; EP 2145112 B2 20220216; WO 2008138520 A1 20081120
DOCDB simple family (application)
DE 102007022348 A 20070512; CN 200880015793 A 20080507; EP 08749360 A 20080507; EP 2008003639 W 20080507