公开(公告)号：IN3769DEN2015A

公开(公告)日：2015-10-02

申请号：IN3769DEN2015

申请日：2015-05-04

Applicant: ABB TECHNOLOGY AG

Inventor： GENTSCH DIETMAR ,  HENCKEN KAI ,  LAMARA TAREK

IPC: H01H33/664

Abstract: The invention relates to a vacuum interrupter arrangement for a medium voltage circuit breaker comprising a vacuum housing (4) within which a pair of electrical contacts (2a 2b) are coaxially arranged and concentrically surrounded by the cylindrical shaped vacuum housing (4) wherein the electrical contacts (2a 2b) are formed in a type of TMF contacts each comprising a slotted cup shaped contact part (9a; 9b) which is attached to the distal end of a contact shaft (8a; 8b) and which is covered by a contact ring (10) disposed on the rim (11) of the cup shaped contact part (9a; 9b) wherein each cup shaped contact part (9; 9'; 9'; 9''; 9'') is provided with a vertical inward bending towards the contact ring (10) wherein the outer diameter of the bottom section of the cup shaped contact part (9; 9 ; 9'; 9''; 9 ') is larger than the outer diameter of its rim section (11) in order to alter the Lorentz force to a respective inward direction.

公开(公告)号：DE102013006397A1

公开(公告)日：2013-11-28

申请号：DE102013006397

申请日：2013-04-15

Applicant: ABB TECHNOLOGY AG

Inventor： HENCKEN KAI ,  KRAMER AXEL ,  PAPE DETLEF

IPC: G01F1/68

Abstract: Die Erfindung betrifft ein Verfahren zum Betrieb eines thermischen Durchflussmessers zur Bestimmung des Durchflusses eines fließfähigen Mediums durch eine Rohrleitung, wobei der Durchflussmesser umfasst: wenigstens ein von dem fließfähigen Medium umströmtes erstes Heizelement, wenigstens einen ersten Temperaturfühler zur Messung der Temperatur des fließfähigen Mediums, und eine elektronische Auswerteeinheit zur Ermittlung des Volumendurchflusses des Mediums durch die Rohrleitung wenigstens aus dem Signal des ersten Temperaturfühlers (&Dgr;T) und der dem ersten Heizelement zugeführten Heizleistung (P), wobei zur medienunabhängigen Messung des Volumendurchflusses des fließfähigen Mediums durch die Rohrleitung eine zeitabhängige Wärmeleitungsmessung mit einer kalorimetrischen Messung kombiniert wird, sowie einen thermischen Durchflussmesser zur Durchführung des Verfahrens.

公开(公告)号：DE102008057964A1

公开(公告)日：2010-05-27

申请号：DE102008057964

申请日：2008-11-19

Applicant: ABB TECHNOLOGY AG

Inventor： HENCKEN KAI ,  SCHWIDERSKI HANS W ,  GROTHEY HARALD ,  SCHRAG DANIEL

IPC: G01F1/58

Abstract: A method is disclosed for operating a flowmeter, such as an inductive flowmeter, in which a medium flows through a measuring tube, and an arrangement of electrodes are conductively connected to the medium. To determine a filling level in a simple and reliable manner, at least four electrodes are arranged in the measuring tube essentially in a half-circumferential region based on a cross section through the measuring tube. When at least one signal is fed in at one of the electrodes or at one of the electrode pairs, an electrical current is measured at an electrode or between an electrode pair. An electrical voltage is measured between at least one other electrode pair or with respect to a common connection to ground. When comparing measurements with two different electrode combinations, different voltage and current values are related to infer a diagnosis, such as a filling level in the tube, and/or an electrode coating, and/or an oblique installation, and/or a sedimentation at a bottom of the tube. The diagnosis can be used to correct a flow rate.