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WO1998034309A1 - Dispositif pour jonctions de cables et machine electrique tournante comprenant un tel dispositif - Google Patents

Dispositif pour jonctions de cables et machine electrique tournante comprenant un tel dispositif Download PDF

Info

Publication number
WO1998034309A1
WO1998034309A1 PCT/SE1998/000165 SE9800165W WO9834309A1 WO 1998034309 A1 WO1998034309 A1 WO 1998034309A1 SE 9800165 W SE9800165 W SE 9800165W WO 9834309 A1 WO9834309 A1 WO 9834309A1
Authority
WO
WIPO (PCT)
Prior art keywords
arrangement
cable
sleeve
joint
cables
Prior art date
Application number
PCT/SE1998/000165
Other languages
English (en)
Inventor
Leif Johansson
Bengt GÖRAN
Mats Leijon
Peter Carstensen
Original Assignee
Asea Brown Boveri Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from SE9700353A external-priority patent/SE510934C2/sv
Application filed by Asea Brown Boveri Ab filed Critical Asea Brown Boveri Ab
Priority to CA002279416A priority Critical patent/CA2279416A1/fr
Priority to EP98902362A priority patent/EP1016176A1/fr
Priority to JP53280798A priority patent/JP2001510012A/ja
Priority to BR9807298-6A priority patent/BR9807298A/pt
Priority to AU58916/98A priority patent/AU734205B2/en
Priority to PL98334906A priority patent/PL334906A1/xx
Publication of WO1998034309A1 publication Critical patent/WO1998034309A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/007—Devices for relieving mechanical stress
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes

Definitions

  • the present invention relates to an arrangement for use m cable joints, preferably premoulded cable joints on bent cables, as described in the preamble to claim 1.
  • the invention also relates to a rotating electric machine as described in the preamble to claim 24.
  • a cable joint usually includes two cables and a joint fitted between the cables in order to join them.
  • Cable joints are usually fitted on straight cables located in the ground or on cable ladders, the cable joint and the cable being solidly locked in relation to each other.
  • EP 0 732 787 is disclosed a device for encapsulating cable joints.
  • Fig. 2 of this document is illustrated a stabilizing bar attached along the joint. The purpose of this bar is to provide structural stability to the joint and in particular to prevent sharp bending.
  • the bar is secured to the jacket of the cable by means of compressive fastening members.
  • This document also discloses a flexible (or hard) shell arranged to surround the cable joint and which is being filled with a curable encapsulant, in order to seal the cable joint. The encapsulant cures into a gel-like consistency.
  • Other devices for encapsulating cable joints in particular various sleeve designs, are known from DE 34 41 311 and EP 0 316 911, for instance.
  • none of the known devices are capable of keeping the parts forming the joint, i.e. the two cables and the cable joint, immovable in relation to each other, while, at the same time, changes in dimension of the cable, primarily due to thermal expansion and contraction, may be absorbed without damage to the device.
  • rotating electric machines which are relevant in the present context, are synchronous machines, normal asynchronous machines as well as double-fed machines, alternating current machines, applications in asynchronous static current converter cascades, outerpole machines and synchronous flux machines.
  • the arrangement according to the invention is particularly suitable for a rotating electric machine operating as a generator in a power station for generating electric power.
  • the object of the present invention is to provide an ar- rangement for cable joints designed to solve the problems described above, in particular at joints on bent cables.
  • Another object is to provide a rotating electric machine in which the problem under discussion has been solved.
  • This object is achieved through a machine of the type described in the preamble to claim 24 being given the features defined in the characterizing part of that claim.
  • the arrangement also has the advantage that it can be used not only in high-voltage electric machines, but also in other contexts where support is required for a cable joint, particularly for bent cables .
  • the cables for which the arrangement according to the invention is intended, are preferably used in windings and are preferably of a type having solid, extruded insulation, of a type now used for power distribution, such as XLPE- cables or cables with EPR-insulation .
  • a cable comprises an inner conductor composed of one or more strand parts, an inner semiconducting layer surrounding the conductor, a solid insulating layer surrounding this and an outer semiconducting layer surrounding the insulating layer.
  • Such cables are flexible, which is an important property in this context since the technology for the arrangement according to the invention is based primarily on winding systems in which the winding is formed from cable which is bent during assembly.
  • the flexibility of an XLPE-cable normally corre- sponds to a radius of curvature of approximately 20 cm for a cable with a diameter of 30 mm, and a radius of curvature of approximately 65 cm for a cable with a diameter of 80 mm.
  • the term "flexible" is used to indicate that the winding is flexible down to a radius of curvature in the order of four times the cable diameter, preferably eight to twelve times the cable diameter.
  • the winding should be constructed to retain its properties even when it is bent and when it is subjected to thermal stress during operation. It is vital that the layers retain their adhesion to each other in this context.
  • the material properties of the layers are decisive here, particularly their elasticity and relative coefficients of thermal expansion.
  • the insulating layer consists of cross-linked, low-density polyethylene
  • the semiconducting layers consist of polyethylene with soot and metal particles mixed in.
  • the insulating layer may consist, for example, of a solid thermoplastic material such as low-density polyethylene (LDPE) , high-density polyethylene (HDPE) , polypropylene (PP) , polybutylene (PB), polymethyl pentene ("TPX"), cross- linked materials such as cross-linked polyethylene (XLPE) , or rubber such as ethylene propylene rubber (EPR) or silicon rubber .
  • LDPE low-density polyethylene
  • HDPE high-density polyethylene
  • PP polypropylene
  • PB polybutylene
  • TPX polymethyl pentene
  • cross- linked materials such as cross-linked polyethylene (XLPE)
  • EPR ethylene propylene rubber
  • the inner and outer semiconducting layers may be of the same basic material but with particles of conducting material such as soot or metal powder mixed in.
  • the mechanical properties of these materials are affected relatively little by whether soot or metal powder is mixed in or not - at least in the proportions required to achieve the conductivity necessary according to the invention.
  • the insulating layer and the semiconducting layers thus have substantially the same coefficients of thermal expansion.
  • Ethylene-vinyl-acetate copolymers/nitrile rubber EVA/NBR
  • butyl graft polyethylene EBA
  • EBA ethylene-butyl-acrylate copolymers
  • EAA ethylene-ethyl-acrylate copolymers
  • the materials listed above have relatively good elasticity, with an E-modulus of E ⁇ 500 MPa, preferably ⁇ 200 MPa .
  • the elasticity is sufficient for any minor differences between the coefficients of thermal expansion for the materials in the layers to be absorbed in the radial direction of the elasticity so that no cracks appear, or any other damage, and so that the layers are not released from each other.
  • the material in the layers is elastic, and the adhesion between the layers is at least of the same magnitude as in the weakest of the materials.
  • the conductivity of the two semiconducting layers is suffi- cient to substantially equalize the potential along each layer.
  • the conductivity of the outer semiconducting layer is sufficiently high to enclose the electrical field within the cable, but sufficiently low not to give rise to significant losses due to currents induced in the longitudinal direction of the layer.
  • each of the two semiconducting layers essentially constitutes one equipotential surface, and these layers will substantially enclose the electrical field between them.
  • the arrangement according to the invention primarily is intended for use in cable joints where the jointed cables consist of high-voltage cable, its advantages being particularly prominent here, a special feature is stated to be that the cables are composed of high-voltage cable.
  • the high-voltage cable has a diameter within the interval 20-250 mm and a conducting area within the interval 80-3000 mm ⁇ .
  • the 'securing element is made of a resilient material.
  • the support comprises at least one rigid yoke, wherein the shape of the inner surface of the yoke, facing the joint, is adapted to the outer shape of the joint.
  • the support being in the form of a yoke has the advantage of a very light construction which is easy to manufacture by means of compression mould ⁇ ing or casting.
  • a yoke is also very easy to install over the joint.
  • Several yokes may possibly be used, for example may a support consist of three yokes, each with substantially the same shape.
  • each yoke may have an elongate shape and terminate in two ends, and said securing element may comprise a resilient clamping device to position and secure said yoke to the two jointed cables.
  • the support is character- ized in that it comprises a sleeve.
  • the shape of the sleeve is adapted to the joint in that the inner diameter of the sleeve is substantially the same size as the largest outer diameter of the cable joint.
  • the sleeve is composed of two axial sleeve parts, which facilitates fitting the support over the joint. Dividing the sleeve into parts with gaps between them is also advantageous for cooling the joint.
  • the sleeve, or sleeve parts, according to this second embodiment may also advantageously be provided with small openings or slits in the wall of the sleeve to permit cooling of the joint inside the sleeve.
  • the support further comprises at least one attachment means to hold together said sleeve parts .
  • This second embodiment and its modification also preferably includes two bushes, one for installation at each end of the sleeve to secure the sleeve to the cable.
  • Shaping the support as a sleeve, or two sleeve halves, with bushes offers the advantage of a particularly strong support, as well as protecting substantially the entire cable joint as well as a part of each cable from external influences .
  • the bush is preferably divided into two axial bush halves in order to facilitate assembly.
  • the bushes have the advantage that they may consist of prefabricated standard bushes for high-voltage and medium- voltage cables.
  • a material often used is rubber, e.g. ethylene propene rubber or silicon rubber, which permits a certain resilience in retaining the cable. This is also advantageous from the thermal expansion aspect .
  • the bush permits a certain amount of expansion m the cable and also adjusts itself when the cable cools down and shrinks.
  • the bushes are provided with special means for absorbing dimen- sional changes of the cable due to thermal expansion or contraction, preferably radial corrugations, either internally or externally. This offers the advantage that the bushes are able to absorb the thermal expansion in the cable insulation below.
  • the support and its accessories can be made of an electrically conducting material, thereby permitting earthing of the joint.
  • the support and its accessories can be made of an electrically insulating mate ⁇ rial if earthing is to be avoided.
  • Rotating electric machines have conventionally been designed for voltages m the range 6-30 kV, and 30 kV has normally been considered to be an upper limit. This generally means that a generator must be connected to the power network via a transformer which steps up the voltage to the level of the power network, i.e. in the range of approximately 130-400 kV.
  • the present invention is primarily intended for use with high voltages.
  • High voltages shall be understood here to mean electric voltages in excess of 10 kV .
  • a typical operating range for an arrangement according to the invention may be voltages from 36 kV up to 800 kV .
  • the invention is intended for use in the stated technical area at voltages below 36 kV.
  • high-voltage insulated electric conductors also termed high-voltage cables, with solid insulation similar to that used in cables for transmitting electric power (e.g. XLPE cables)
  • the voltage of the machine can be increased to such levels that it can be connected directly to the power network without an intermediate transformer.
  • the conventional transformer can thus be eliminated.
  • an important condition for this is that the cables can be jointed in a reliable manner, which is thus enabled by the present invention.
  • Figure 1 shows schematically a support according to a first embodiment of the invention
  • Figure 2 shows schematically a cross section of a cable joint with a support according to Figure 1 applied
  • Figure 3 shows schematically a -cross section of a cable joint with a support according to a second embodiment applied
  • Figure 4 shows an alternative embodiment of a detail in the support according to Figure 3
  • Figure 5 shows an embodiment according to a second alternative of a detail in the support according to Figure 3
  • Figure 6 shows schematically a modification of the support in Figure 3
  • Figure 7 shows a cross section through a high-voltage cable for which the arrangement is particularly suitable.
  • the support is in the form of a yoke 1.
  • the yoke has an elongate shape and terminates in two ends 3, 4.
  • the shape of the yoke is adapted to the contour of the cable joint it is intended to support.
  • the shape of the yoke follows exactly the shape of the cable joint.
  • the inside only of the yoke to have a shape corresponding to the cable joint and its external side to have some other suitable shape, such as a shape that is simple from the manufacturing point ⁇ f view.
  • the yoke is preferably applied centrally over the joint and its end parts 3, 4 are in contact with the two cables 6, 7 jointed by the cable joint 9, as illustrated in Figure 2.
  • the support also comprises a resilient clamping arrangement 11, 12 at each end.
  • This clamping arrangement may consist of a tape wound around the end of the yoke and the cable, or it may consist of a cable binder or the like.
  • the yoke is made of an electrically conducting material, e.g. metal.
  • the clamping arrangement must of course also be made of an electrically conducting material .
  • the material selected for the yoke and the clamping arrangements should be an electrically nonconducting material, e.g. plastic.
  • a second embodiment of the invention is " illustrated in Figure 3.
  • the support is here composed of a sleeve 15 fitted around a cable joint 16, preferably centrally over the joint.
  • Two cables 18, 19 are jointed by means of this cable joint.
  • the shape of the sleeve follows that of the cable joint, in that the inside diameter of the sleeve is adapted to the external diameter of the cable joint.
  • a bush 21, 22 is located at each end of the sleeve, the main purpose of which is to position and secure the sleeve around each cable .
  • the bushes may, for instance, consist of prefabricated standard bushes for high-voltage and medium-voltage cables.
  • a material often used is rubber, e.g. ethylene propene rubber or silicon rubber, which permits a certain resilience in retaining the cable. This is advantageous from the thermal expansion aspect.
  • the bush permits a certain amount of expansion in the cable and also adjusts itself when the cable cools down and shrinks.
  • FIGS. 4 and 5 illustrate two particularly advantageous embodiment modifications of the bush. In both cases the bush is divided into two axial bush halves.
  • This bush half 24 is provided with a semi-circular boring 25 for passage of the cable.
  • the inner surface, i.e. facing the cable, is provided with a corrugation in the form of grooves 26 deep enough to allow the bush to absorb thermal expansion in the cable insulation below when the bush is fitted on the cable.
  • the bush half 28 illustrated in Figure 5 is instead provided with a corrugation on its outer surface, comprising grooves
  • the bush is also provided with a central boring 29 facing the cable.
  • the corrugated outer surface of the bush faces the inside of the sleeve. It is of course possible to provide the bush with corrugations on both the inner and outer surfaces, which may be expedient when an extra high thermal expansion may be expected in the cable insulation below.
  • FIG. 6 shows a modification of the second embodiment, shown in Figure 3.
  • the sleeve here consists of two axial sleeve halves 40, 41 which surround a cable joint 43 for joining two cables 45, 46.
  • the two sleeve halves have the advantage of being simpler to fit over the cable joint than the embodiment with an unbroken sleeve, which must be slipped around the joint.
  • the sleeve halves 40, 41 are held together around the joint by means of an attachment means 48, which may be some form of resilient clamping arrange- ment, e.g. a cable binder.
  • an attachment means is provided at each sleeve end and one at the centre of the sleeve. The number of attachment means is chosen as required.
  • a bush 50, 51 is corresponding to the bushes in Figure 3.
  • the support maintains both the cable and the cable joint straight and immovable .
  • all parts may be made either of electrically conducting material to enable earthing, or of electrically insulating material.
  • the sleeve may also be provided with small openings or slits 53 in the wall of the sleeve to facilitate cooling of the joint.
  • FIG. 7 shows a cross section through a high- voltage cable 35, which is particularly suitable for use with the present invention.
  • the high-voltage cable 35 includes a number of strand parts 31 made of copper (Cu) , for instance, and having a circular cross section. These strand parts are arranged in the centre of the high-voltage cable.
  • a first semiconducting layer 32 Surrounding the strand parts 31 is a first semiconducting layer 32.
  • an insulating layer 33 Surrounding the first semiconducting layer 32 is an insulating layer 33, e.g. XLPE-insulation, and surround- ing the insulating layer 33 is a second semiconducting layer 34.
  • the cable illustrated differs from conventional high- voltage cable in that the outer, mechanically protective sheath and the metal screen that normally surround such a cable for power distribution have been eliminated.
  • the concept "high-voltage cable” in the present application thus need not include the metal screen and the outer protective sheath that normally surround such a cable for power distribution .

Landscapes

  • Cable Accessories (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Waveguide Connection Structure (AREA)
  • Processing Of Terminals (AREA)

Abstract

Cette invention se rapporte à un dispositif utilisé dans des jonctions de câbles, notamment des jonctions placées sur des câbles coudés. Une telle jonction de câbles se compose de deux câbles (6, 7; 18, 19; 45, 46) et d'une épissure (9; 16; 43) appliquée entre les câbles. Ledit dispositif se caractérise en ce qu'il comprend un support (1; 15; 40, 41) conçu pour être appliqué sur la jonction, afin que les parties (6, 7, 9; 16, 18, 19; 43, 45, 46) formant la jonction restent sensiblement immobiles les unes par rapport aux autres et en qu'il comprend au moins un élément de fixation (11, 12; 21, 22; 50, 51) au moyen duquel le support est fixé de manière élastique sur le câble, cet élément de fixation étant capable d'absorber les changements de dimensions du câble dus à la dilatation ou à la contraction thermique. Cette invention se rapporte également à une machine électrique tournante comprenant un stator pourvu d'enroulements amenés à passer à travers des fentes ménagées dans le stator ainsi qu'un rotor, cette machine se caractérisant en ce qu'elle comprend le dispositif pour jonctions de câbles décrit ici.
PCT/SE1998/000165 1997-02-03 1998-02-02 Dispositif pour jonctions de cables et machine electrique tournante comprenant un tel dispositif WO1998034309A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA002279416A CA2279416A1 (fr) 1997-02-03 1998-02-02 Dispositif pour jonctions de cables et machine electrique tournante comprenant un tel dispositif
EP98902362A EP1016176A1 (fr) 1997-02-03 1998-02-02 Dispositif pour jonctions de cables et machine electrique tournante comprenant un tel dispositif
JP53280798A JP2001510012A (ja) 1997-02-03 1998-02-02 ケーブル継手用機構及びかかる機構を含む回転電気機器
BR9807298-6A BR9807298A (pt) 1997-02-03 1998-02-02 Arranjo para emendas de cabo e máquinas elétrica rotativa que inclui o dito arranjo
AU58916/98A AU734205B2 (en) 1997-02-03 1998-02-02 An arrangement for cable joints and a rotating electric machine including said arrangement
PL98334906A PL334906A1 (en) 1997-02-03 1998-02-02 Cable connection arrangement and rotary electric machine incorporating same

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE9700353A SE510934C2 (sv) 1997-02-03 1997-02-03 Anordning vid lindningsskarvar samt roterande elektrisk maskin innefattande anordningen
SE9700353-7 1997-02-03
SE9704424A SE9704424D0 (sv) 1997-02-03 1997-11-28 Anordning vid kabelskarvar samt roterande elektrisk maskin innefattande anordningen
SE9704424-2 1997-11-28

Publications (1)

Publication Number Publication Date
WO1998034309A1 true WO1998034309A1 (fr) 1998-08-06

Family

ID=26662876

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1998/000165 WO1998034309A1 (fr) 1997-02-03 1998-02-02 Dispositif pour jonctions de cables et machine electrique tournante comprenant un tel dispositif

Country Status (10)

Country Link
EP (1) EP1016176A1 (fr)
JP (1) JP2001510012A (fr)
CN (1) CN1246968A (fr)
AU (1) AU734205B2 (fr)
BR (1) BR9807298A (fr)
CA (1) CA2279416A1 (fr)
PL (1) PL334906A1 (fr)
RU (1) RU2202142C2 (fr)
SE (1) SE9704424D0 (fr)
WO (1) WO1998034309A1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6867674B1 (en) 1997-11-28 2005-03-15 Asea Brown Boveri Ab Transformer
US6873080B1 (en) 1997-09-30 2005-03-29 Abb Ab Synchronous compensator plant
US6885273B2 (en) 2000-03-30 2005-04-26 Abb Ab Induction devices with distributed air gaps
US6891303B2 (en) 1996-05-29 2005-05-10 Abb Ab High voltage AC machine winding with grounded neutral circuit
US6894416B1 (en) 1996-05-29 2005-05-17 Abb Ab Hydro-generator plant
US6940380B1 (en) 1996-05-29 2005-09-06 Abb Ab Transformer/reactor
US6970063B1 (en) 1997-02-03 2005-11-29 Abb Ab Power transformer/inductor
US6972505B1 (en) 1996-05-29 2005-12-06 Abb Rotating electrical machine having high-voltage stator winding and elongated support devices supporting the winding and method for manufacturing the same
US6995646B1 (en) 1997-02-03 2006-02-07 Abb Ab Transformer with voltage regulating means
US7019429B1 (en) 1997-11-27 2006-03-28 Asea Brown Boveri Ab Method of applying a tube member in a stator slot in a rotating electrical machine
US7046492B2 (en) 1997-02-03 2006-05-16 Abb Ab Power transformer/inductor
US7045704B2 (en) 2000-04-28 2006-05-16 Abb Ab Stationary induction machine and a cable therefor
US7061133B1 (en) 1997-11-28 2006-06-13 Abb Ab Wind power plant
US7141908B2 (en) 2000-03-01 2006-11-28 Abb Ab Rotating electrical machine
US20150086166A1 (en) * 2012-03-19 2015-03-26 Brian D. Coate Apparatus and method for splicing all-dielectric self-supporting fiber optic cable
EP3875967A1 (fr) * 2020-03-04 2021-09-08 Sécheron SA Appareil électrique à haute tension

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JP4609704B2 (ja) * 2005-01-12 2011-01-12 住友電気工業株式会社 超電導ケーブルの接続部の組み立て方法
EP2091121B1 (fr) * 2008-02-13 2012-04-18 Nexans Dispositif pour relier entre eux deux câbles électriques de haute tension ayant des diamètres différents
KR20140137010A (ko) * 2012-03-22 2014-12-01 내쇼날 오일웰 파르코 노르웨이 에이에스 케이블용 지지 장치 및 이를 이용한 케이블 지지 방법
US20170155207A1 (en) * 2014-07-24 2017-06-01 Connec Limited Electrical connector
WO2016011474A1 (fr) * 2014-07-24 2016-01-28 Connec Limited Connecteur électrique
CN104466875A (zh) * 2014-12-22 2015-03-25 南车株洲电机有限公司 电机及电缆接头结构

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EP0316911A2 (fr) * 1987-11-18 1989-05-24 Nippon Telegraph And Telephone Corporation Enveloppe de câbles
EP0732787A1 (fr) * 1995-01-17 1996-09-18 Thomas & Betts Corporation Boîtier de jonction de câbles à enrobage forcé et à récipient pour matériau d'enrobage sortant

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DE4126355A1 (de) * 1991-08-09 1993-02-11 Stewing Gmbh & Co Kg Waermerueckstellbare werkstoffbahn

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Publication number Priority date Publication date Assignee Title
GB723457A (en) * 1952-07-07 1955-02-09 Standard Telephones Cables Ltd Joint for an electric cable
DE3441311A1 (de) * 1984-11-12 1986-05-15 Siemens AG, 1000 Berlin und 8000 München Spleissschutzeinlage fuer kabelmuffen aus schrumpfbarem material
EP0316911A2 (fr) * 1987-11-18 1989-05-24 Nippon Telegraph And Telephone Corporation Enveloppe de câbles
EP0732787A1 (fr) * 1995-01-17 1996-09-18 Thomas & Betts Corporation Boîtier de jonction de câbles à enrobage forcé et à récipient pour matériau d'enrobage sortant

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6972505B1 (en) 1996-05-29 2005-12-06 Abb Rotating electrical machine having high-voltage stator winding and elongated support devices supporting the winding and method for manufacturing the same
US6936947B1 (en) 1996-05-29 2005-08-30 Abb Ab Turbo generator plant with a high voltage electric generator
US6940380B1 (en) 1996-05-29 2005-09-06 Abb Ab Transformer/reactor
US6891303B2 (en) 1996-05-29 2005-05-10 Abb Ab High voltage AC machine winding with grounded neutral circuit
US6894416B1 (en) 1996-05-29 2005-05-17 Abb Ab Hydro-generator plant
US6906447B2 (en) 1996-05-29 2005-06-14 Abb Ab Rotating asynchronous converter and a generator device
US6919664B2 (en) 1996-05-29 2005-07-19 Abb Ab High voltage plants with electric motors
US6995646B1 (en) 1997-02-03 2006-02-07 Abb Ab Transformer with voltage regulating means
US6970063B1 (en) 1997-02-03 2005-11-29 Abb Ab Power transformer/inductor
US7046492B2 (en) 1997-02-03 2006-05-16 Abb Ab Power transformer/inductor
US6873080B1 (en) 1997-09-30 2005-03-29 Abb Ab Synchronous compensator plant
US7019429B1 (en) 1997-11-27 2006-03-28 Asea Brown Boveri Ab Method of applying a tube member in a stator slot in a rotating electrical machine
US6867674B1 (en) 1997-11-28 2005-03-15 Asea Brown Boveri Ab Transformer
US7061133B1 (en) 1997-11-28 2006-06-13 Abb Ab Wind power plant
US7141908B2 (en) 2000-03-01 2006-11-28 Abb Ab Rotating electrical machine
US6885273B2 (en) 2000-03-30 2005-04-26 Abb Ab Induction devices with distributed air gaps
US7045704B2 (en) 2000-04-28 2006-05-16 Abb Ab Stationary induction machine and a cable therefor
US20150086166A1 (en) * 2012-03-19 2015-03-26 Brian D. Coate Apparatus and method for splicing all-dielectric self-supporting fiber optic cable
US20160154181A1 (en) * 2012-03-19 2016-06-02 Brian D. Coate Apparatus and method for splicing all-dielectric self-supporting fiber optic cable
US10379308B2 (en) * 2012-03-19 2019-08-13 Brian D. Coate Apparatus and method for splicing all-dielectric self-supporting fiber optic cable
US10585260B2 (en) * 2012-03-19 2020-03-10 Brian D. Coate Apparatus and method for splicing all-dielectric self-supporting fiber optic cable
EP3875967A1 (fr) * 2020-03-04 2021-09-08 Sécheron SA Appareil électrique à haute tension

Also Published As

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EP1016176A1 (fr) 2000-07-05
CN1246968A (zh) 2000-03-08
PL334906A1 (en) 2000-03-27
RU2202142C2 (ru) 2003-04-10
JP2001510012A (ja) 2001-07-24
AU5891698A (en) 1998-08-25
BR9807298A (pt) 2000-04-18
CA2279416A1 (fr) 1998-08-06
AU734205B2 (en) 2001-06-07
SE9704424D0 (sv) 1997-11-28

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