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公开(公告)号:DE19701729A1
公开(公告)日:1998-07-23
申请号:DE19701729
申请日:1997-01-20
Applicant: ABB RESEARCH LTD
Inventor: BOEHME HELMUT PROF DR ING , PASCHEN ROLF PROF DR ING , FITTERER GERD DIPL ING , AUER MANFRED
IPC: H02G7/20
Abstract: A three-phase overhead line has at least one compensation loop formed by at least one split-phase conductor and comprising at least one unsplit phase conductor. The compensation loop (1) is connected with an additional loop (2) formed by the same part-conductors of at least one split-phase conductor and together with this forms a closed loop so that the overhead line is divided into at least two main sections, that is, into at least one section with the compensation loop and one section with an additional loop. The additional loop comprises either no unsplit phase conductors or only one such conductor and has a series condenser (5). Into the compensation loop by means of a driving voltage generated in the compensation and additional loops, is fed a compensation current whose phase and amplitude is adjusted relative to the phase and amplitude of the current flowing in the phase conductor so that the two magnetic fields generated act in opposition.
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公开(公告)号:DE19645001A1
公开(公告)日:1998-05-07
申请号:DE19645001
申请日:1996-10-30
Applicant: ABB RESEARCH LTD
Inventor: BOEHME HELMUT PROF DR ING , FITTERER GERD DIPL ING , PASCHEN ROLF PROF DR ING , SMAILUS BERND DIPL ING
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.
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公开(公告)号:DE19739579A1
公开(公告)日:1999-03-11
申请号:DE19739579
申请日:1997-09-10
Applicant: ABB RESEARCH LTD
Abstract: The invention concerns a foundation structure method using piles comprising the following steps: a) producing first a hollow space (2) in the foundation soil using a penetrating apparatus (1); b) the hollow space edge can be maintained by a flexible protective tube (3) penetrating into the foundation soil simultaneously with the penetrating apparatus; c) after reaching the required depth, the penetrating apparatus is removed from the hollow space; d) the pile carrier element (5) can be inserted into the hollow space, jointly with the discharge pipe (9), for supplying the injection mass; e) the injection mass (12) is compressed through the discharge pipes (9) to fill the hollow space; f) simultaneously while the mortar is being input, the protective tube can be displaced upwards and removed.
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公开(公告)号:DE19701040A1
公开(公告)日:1998-07-16
申请号:DE19701040
申请日:1997-01-15
Applicant: ABB RESEARCH LTD
Inventor: BOEHME HELMUT PROF DR ING , PASCHEN ROLF PROF DR ING
IPC: H02G7/20
Abstract: The three-phase overhead line is arranged, so that at least two of the three-phase conductors are split respectively in to at least one part conductor pair. All the part conductors (L2a, L2b, L3a, L3b) are arranged on the generated surface of a round cylinder (ZY) parallel to the central axis (PL) of the three-phase overhead line. The dia. of the cylinder (ZY) is the distance between the central axis (PL) of the overhead line and a specified axis (P1) with a quenched magnetic field. The plane surface (F) spanned and defined by the two axes (PL, P1), intersects the cylinder. So that two symmetrical half cylinders result. The part conductors of a part conductor pair with currents of the same phase position lie symmetrically at both sides of this surface (F).
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公开(公告)号:DE19645002A1
公开(公告)日:1998-05-07
申请号:DE19645002
申请日:1996-10-30
Applicant: ABB RESEARCH LTD
Inventor: PASCHEN ROLF PROF DR ING , FITTERER GERD DIPL ING , BOEHME HELMUT PROF DR ING , GRAEBER NORBERT DIPL ING
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.
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