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公开(公告)号:DE19746593A1
公开(公告)日:1999-04-29
申请号:DE19746593
申请日:1997-10-22
Applicant: ABB RESEARCH LTD
Inventor: BOEHME HELMUT PROF DR ING , PASCHEN RALF PROF DR ING , FITTERER GERD DIPL ING , GUIMARAES FERREIRA DA SILVA JO
IPC: H02G7/20
Abstract: To each selected section, two compensation loops (1,7) are provided covering the phase conductors in the form of a roof. Each consists of a horizontal upper conductor(2,8) located above the upper phase conductor, a horizontal lower conductor (3,9) found laterally below the lower phase conductor and two side connecting conductors (4,5). The overhead line has three phase conductors located one above the other. The phase conductors are embraced along at least one selected section by compensation loops. The phase positions and amplitudes of the compensation currents generated in the loops by a driving voltage are designed so that the magnetic and electric fields generated work against those of the phase currents.
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公开(公告)号:DE19709668A1
公开(公告)日:1998-09-17
申请号:DE19709668
申请日:1997-03-11
Applicant: ABB RESEARCH LTD
Inventor: BOEHME HELMUT PROF DR ING , ABISSO ALBERTO
Abstract: The overhead line includes adjacent phase conductors (L1-3) which are interconnected along the overground line via spacers-arresters (106). One spacer-arrester forms a spacer with integrated overvoltage arrester. Preferably, one or more earthing cables (E) and the phase conductors are interconnected via spacers-arresters (1,4), at least partly. Voltage controlled resistors serve as voltage arresters for the spacers-arresters. The overvoltage arresters may be coupled to the spacers by spark tracks.
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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:DE19642677A1
公开(公告)日:1998-04-23
申请号:DE19642677
申请日:1996-10-16
Applicant: ABB RESEARCH LTD
Inventor: BOEHME HELMUT PROF DR ING , FITTERER GERD DIPL ING , PASCHEN ROLF PROF DR , SCHLAYER GERNOT DIPL ING
Abstract: The three-phase overhead cable has return conductors (7-9) beneath each of the three phase conductors (L1-L3) for connection of components (1-3) of the source, e.g. transformer windings or generators, and/or components (4-6) of the sink, e.g. transformer windings or loads. Counter currents flowing in the return conductors have the same amplitude as, but opposite phase to, the phase currents flowing in the corresp. phase cables.
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公开(公告)号:DE19537089A1
公开(公告)日:1997-04-10
申请号:DE19537089
申请日:1995-10-05
Applicant: ABB RESEARCH LTD
Inventor: BOERNER GUNTER DR ING , NIENBURG HANS-CHRISTOPH DIPL C , BOEHME HELMUT PROF DR ING , SOPKA JOERG DIPL PHYS DR RER N , KLEBER WOLFGANG PROF DR ING
Abstract: The method has the fluidisation occurring in a twin chambered device (2), the first chamber (3 )receiving the compressed air that then passes through a "frit" to the second chamber(4). The powder in the second chamber leaves the device from the nozzle (11) and is charged up. The powder is filled through the hole (9) which can be closed off. Apart from the nozzle and the air inlet and outlet valves (17,19), the fluidisation takes place in a closed chamber, the valves being used to maintain the correct pressure proportions. Additional mechanical energy is passed to the fluidised bed of the second chamber in the form of vibration.
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公开(公告)号:DE19708900A1
公开(公告)日:1998-09-10
申请号:DE19708900
申请日:1997-03-05
Applicant: ABB RESEARCH LTD
IPC: H02G7/20
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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:DE19542863A1
公开(公告)日:1997-05-22
申请号:DE19542863
申请日:1995-11-17
Applicant: ABB RESEARCH LTD
Inventor: BOERNER GUENTER DIPL ING , NIENBURG HANS CHRISTOPH DIPL C , WITTMANN JOSEF , BOEHME HELMUT PROF DR ING
Abstract: The gun has a chamber (1) into which is blown the powder/air mixture via a lateral duct (11). This generates a swirl action and the exit of the chamber passes HT electrodes (7) before being expelled via a deflector plate (9) to spread the powder spray. The earthing electrode (5) is surrounded by a sheath and has clean air blown through the space between the sheath and the electrode. The air keeps the electrode clean of powder deposits. The spacing of the electrodes is adjustable and the HT electrodes are in a ring, or in several rings. The HT electrodes are similarly supplied with cleaning air flows.
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公开(公告)号:DE19701828A1
公开(公告)日:1998-07-23
申请号:DE19701828
申请日:1997-01-21
Applicant: ABB RESEARCH LTD
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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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