公开(公告)号：DE19954950A1

公开(公告)日：2001-05-17

申请号：DE19954950

申请日：1999-11-16

Applicant: ABB RESEARCH LTD

Inventor： EICKMEYER DIETMAR ,  BOEHME HELMUT

IPC: H02H1/00 ,  H02H7/26 ,  G06F19/00

Abstract: The method involves determining a threshold for at least one parameter, monitoring for threshold violation and using this to detect short circuits. An uncertainty range is determined for the parameter values, and values within this range are assessed for the existence of a short circuit using artificial neural networks and a conclusion regarding the existence of a short drawn by combined evaluation of the threshold and uncertainty monitoring.

公开(公告)号：DE19831178A1

公开(公告)日：2000-01-13

申请号：DE19831178

申请日：1998-07-11

Applicant: ABB RESEARCH LTD

Inventor： BOEHME HELMUT ,  BERTAZZI ARNALDO ,  PASCHEN ROLF

IPC: H02G7/20 ,  H02J3/00 ,  H01B11/06 ,  H01F27/00 ,  H02G7/00 ,  H02J3/20

Abstract: The overhead cable has three phase conductors (R,S,T) pref. arranged one above the other and enclosed by a compensation loop (1), at least along a selected section. The phase and amplitude of the compensation current in the loop are designed so that the resulting electric and magnetic fields counteract those produced by the phase conductors. A current transformer (4) has its primary winding in series with a phase conductor and its secondary connected to the compensation loop. A component of defined impedance is connected in parallel and/or in series with the loop and/or an additional loop (7) of defined impedance (LZ,CZ,RZ) is connected in parallel with the compensation loop.

公开(公告)号：PL322864A1

公开(公告)日：1998-05-11

申请号：PL32286497

申请日：1997-10-28

Applicant: ABB RESEARCH LTD

Inventor： BOEHME HELMUT ,  FITTERER GERD ,  PASCHEN ROLF ,  SMAILUS BERND

IPC: H02G7/20 ,  H02J3/00 ,  H02G7/05

Abstract: The power line has an additional, compensation, loop (1) surrounding at least one phase conductor. Into this compensation loop a compensation current is fed via a driving voltage. This current's phase angle and amplitude are adjusted relative to the phase conductor current angles and amplitudes so that its magnetic field works in opposition to that of the phase conductors. The driving voltage in the compensation loop and in at least one additional loop, which also surrounds a phase conductor and is connected with the original loop, is generated so that the overhead line is divided into at least two main sections. One section is with the original loop and one is with the additional loop.

公开(公告)号：BR9800428A

公开(公告)日：1999-07-06

申请号：BR9800428

申请日：1998-01-21

Applicant: ABB RESEARCH LTD

Inventor： BERTAZZI ARNALDO ING ,  BOEHME HELMUT ,  KAUMANNS JOHANNES ,  MUELLER KARL-BERNHARD ,  SCHLAYER GERNOT ,  CATENACCI ANDREA

IPC: H01B17/14 ,  H02G7/00

公开(公告)号：BR9705169A

公开(公告)日：1999-03-30

申请号：BR9705169

申请日：1997-10-30

Applicant: ABB RESEARCH LTD

Inventor： BOEHME HELMUT ,  PASCHEN ROLF ,  FITTERER GERD ,  GRAEBER NORBERT

IPC: H02G7/20 ,  H02J3/00 ,  G05F7/00 ,  H02G7/00

Abstract: An overhead power line has at least one additional compensation loop. At least one conductor (7) of this/these loop(s) is parallel to, and near, the phase conductor nearest the ground and into this/these loop(s) is fed a compensation current whose phase and amplitude are adjusted relative to the phase angles and amplitudes in the three phase conductors so that its magnetic field works against that of the phase conductors. The compensation current is generated from a power supply (3) with a controller (5) connected with a magnetic field sensor (6). The compensation loop(s) has/have a series condenser(4). For a three phase system stacked one conductor above another, one conductor of the compensation loop(s) is above the uppermost phase conductor and the other is below the lowest phase conductor.

公开(公告)号：PL324373A1

公开(公告)日：1998-08-03

申请号：PL32437398

申请日：1998-01-20

Applicant: ABB RESEARCH LTD

Inventor： BERTAZZI ARNALDO ,  BOEHME HELMUT ,  KAUMANNS JOHANNES ,  MUELLER KARL-BERNHARD ,  SCHLAYER GERNOT ,  CATENACCI ANDREAS

IPC: H01B17/14 ,  H02G7/20

公开(公告)号：PL322865A1

公开(公告)日：1998-05-11

申请号：PL32286597

申请日：1997-10-28

Applicant: ABB RESEARCH LTD

Inventor： PASCHEN ROLF ,  FITTERER GERD ,  BOEHME HELMUT ,  GRAEBER NORBERT

IPC: H02G7/20 ,  H02G7/05

Abstract: An overhead power line has at least one additional compensation loop. At least one conductor (7) of this/these loop(s) is parallel to, and near, the phase conductor nearest the ground and into this/these loop(s) is fed a compensation current whose phase and amplitude are adjusted relative to the phase angles and amplitudes in the three phase conductors so that its magnetic field works against that of the phase conductors. The compensation current is generated from a power supply (3) with a controller (5) connected with a magnetic field sensor (6). The compensation loop(s) has/have a series condenser(4). For a three phase system stacked one conductor above another, one conductor of the compensation loop(s) is above the uppermost phase conductor and the other is below the lowest phase conductor.

公开(公告)号：DE10062774A1

公开(公告)日：2002-06-20

申请号：DE10062774

申请日：2000-12-15

Applicant: ABB RESEARCH LTD

Inventor： BOEHME HELMUT

IPC: H01F27/28 ,  H01F27/34

Abstract: Conductors (7,8) used to form a higher harmonic voltage winding (5) and an undervoltage winding (6) are interconnected in parallel in all positions (15) and linked to the input (16) and output (17) of the undervoltage winding. Conductors (7) for the higher harmonic voltage winding are wired in series and connect to the input (18) and output (19) of the higher harmonic voltage winding. An Independent claim is also included for a method for producing an output transformer with a core, a higher harmonic voltage winding and undervoltage winding.

公开(公告)号：PL184959B1

公开(公告)日：2003-01-31

申请号：PL32286497

申请日：1997-10-28

Applicant: ABB RESEARCH LTD

Inventor： BOEHME HELMUT ,  FITTERER GERD ,  PASCHEN ROLF ,  SMAILUS BERND

IPC: H02G7/20 ,  H02J3/00

Abstract: The power line has an additional, compensation, loop (1) surrounding at least one phase conductor. Into this compensation loop a compensation current is fed via a driving voltage. This current's phase angle and amplitude are adjusted relative to the phase conductor current angles and amplitudes so that its magnetic field works in opposition to that of the phase conductors. The driving voltage in the compensation loop and in at least one additional loop, which also surrounds a phase conductor and is connected with the original loop, is generated so that the overhead line is divided into at least two main sections. One section is with the original loop and one is with the additional loop.

公开(公告)号：DE59609702D1

公开(公告)日：2002-10-24

申请号：DE59609702

申请日：1996-12-06

Applicant: ABB RESEARCH LTD

Inventor： BOERNER GUENTER ,  NIENBURG HANS-CHRISTOPH ,  WITTMANN JOSEF ,  BOEHME HELMUT

IPC: B05B5/025 ,  B05B5/03

Abstract: A powder-spraying appliance for electrostatic powder coating of work pieces. In order to achieve particularly good charging of powder particles, the powder-spraying appliance contains a chamber, into which a powder/air mixture is introduced transversely to a spraying direction via a supply conduit. An earth electrode and a plurality of high-voltage electrodes are disposed in the chamber. All of the electrodes are flushed with cleaning air in order to avoid powder deposits on the electrodes.