WO1997045929A3 - Earthing device and rotating electric machine including the device - Google Patents

Earthing device and rotating electric machine including the device Download PDF

Info

Publication number
WO1997045929A3
WO1997045929A3 PCT/SE1997/000900 SE9700900W WO9745929A3 WO 1997045929 A3 WO1997045929 A3 WO 1997045929A3 SE 9700900 W SE9700900 W SE 9700900W WO 9745929 A3 WO9745929 A3 WO 9745929A3
Authority
WO
WIPO (PCT)
Prior art keywords
semiconducting layer
earthing
sheet metal
outer semiconducting
electrically connected
Prior art date
Application number
PCT/SE1997/000900
Other languages
French (fr)
Other versions
WO1997045929A2 (en
Inventor
Mats Leijon
Li Ming
Lars Gertmar
Peter Carstensen
Gunnar Kylander
Udo Fromm
Original Assignee
Asea Brown Boveri
Mats Leijon
Li Ming
Lars Gertmar
Peter Carstensen
Gunnar Kylander
Udo Fromm
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 SE9602092A external-priority patent/SE9602092D0/en
Priority claimed from SE9602079A external-priority patent/SE9602079D0/en
Application filed by Asea Brown Boveri, Mats Leijon, Li Ming, Lars Gertmar, Peter Carstensen, Gunnar Kylander, Udo Fromm filed Critical Asea Brown Boveri
Priority to AU29889/97A priority Critical patent/AU2988997A/en
Priority to DE29780444U priority patent/DE29780444U1/en
Publication of WO1997045929A2 publication Critical patent/WO1997045929A2/en
Publication of WO1997045929A3 publication Critical patent/WO1997045929A3/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/288—Shielding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/323—Insulation between winding turns, between winding layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H01F3/14—Constrictions; Gaps, e.g. air-gaps
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/40—Structural association with grounding devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • H02K3/14—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots with transposed conductors, e.g. twisted conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/40—Windings characterised by the shape, form or construction of the insulation for high voltage, e.g. affording protection against corona discharges
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/48—Fastening of windings on the stator or rotor structure in slots
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F2027/329—Insulation with semiconducting layer, e.g. to reduce corona effect
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/15—Machines characterised by cable windings, e.g. high-voltage cables, ribbon cables

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

In an electric machine including a core of one or more electric conductors (1) surrounded by insulating layers, comprising an inner semiconducting layer (2), an intermediate insulating layer (3) and an outer semiconducting layer (4), the outer semiconducting layer (4) is electrically connected to the earth reference (10) of the machine. For this purpose the outer semiconducting layer (4) is surrounded by a sheet metal earthing plate (5) which is clamped firmly around the outer semiconducting layer (4) by at least one earthing screw (7) and is in electrically conducting contact therewith. The sheet metal earthing plate (5) is electrically connected via an earth wire (8), preferably connected to the earthing screw (7), to said earth reference (10). In a stator winding to a high-voltage generator each winding part is provided with at least one sheet metal earthing plate (5), the sheet metal earthing plates in the various winding parts being electrically connected in series to the earth reference (10).
PCT/SE1997/000900 1996-05-29 1997-05-27 Earthing device and rotating electric machine including the device WO1997045929A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU29889/97A AU2988997A (en) 1996-05-29 1997-05-27 Earthing device and rotating electric machine including the device
DE29780444U DE29780444U1 (en) 1996-05-29 1997-05-27 Device for grounding insulated conductors in an electrical machine

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE9602092-0 1996-05-29
SE9602079-7 1996-05-29
SE9602092A SE9602092D0 (en) 1996-05-29 1996-05-29 Grounding Device
SE9602079A SE9602079D0 (en) 1996-05-29 1996-05-29 Rotating electric machines with magnetic circuit for high voltage and a method for manufacturing the same

Publications (2)

Publication Number Publication Date
WO1997045929A2 WO1997045929A2 (en) 1997-12-04
WO1997045929A3 true WO1997045929A3 (en) 1998-01-29

Family

ID=26662646

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1997/000900 WO1997045929A2 (en) 1996-05-29 1997-05-27 Earthing device and rotating electric machine including the device

Country Status (3)

Country Link
AU (1) AU2988997A (en)
DE (1) DE29780444U1 (en)
WO (1) WO1997045929A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE512952C2 (en) * 1997-09-30 2000-06-12 Abb Ab Method and apparatus for grounding a rotating electric machine, as well as a rotating electric machine
GB2332559A (en) * 1997-11-28 1999-06-23 Asea Brown Boveri An insulated conductor
GB2331856B (en) * 1997-11-28 2002-02-27 Asea Brown Boveri Electricity supply system
GB2331871A (en) * 1997-11-28 1999-06-02 Asea Brown Boveri Insulated electrical conductor for high voltage use

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1418856A (en) * 1919-05-02 1922-06-06 Allischalmers Mfg Company Dynamo-electric machine
DE584639C (en) * 1929-12-28 1933-09-27 Aeg Corona protection for windings in electrical machines
DE2050674A1 (en) * 1969-10-29 1971-05-19 Asea Ab Arrangement for avoiding glow discharges on electrical conductors
US5036165A (en) * 1984-08-23 1991-07-30 General Electric Co. Semi-conducting layer for insulated electrical conductors
DE4022476A1 (en) * 1990-07-14 1992-01-16 Thyssen Industrie Electric cable for three=phase AC winding of linear motor - covers one phase by inner conducting layer surrounded by insulation and outer conducting layer
DE4409794C1 (en) * 1994-03-22 1995-08-24 Vem Elektroantriebe Gmbh Fastening for equalising connection lines of high-power DC machines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1418856A (en) * 1919-05-02 1922-06-06 Allischalmers Mfg Company Dynamo-electric machine
DE584639C (en) * 1929-12-28 1933-09-27 Aeg Corona protection for windings in electrical machines
DE2050674A1 (en) * 1969-10-29 1971-05-19 Asea Ab Arrangement for avoiding glow discharges on electrical conductors
US5036165A (en) * 1984-08-23 1991-07-30 General Electric Co. Semi-conducting layer for insulated electrical conductors
DE4022476A1 (en) * 1990-07-14 1992-01-16 Thyssen Industrie Electric cable for three=phase AC winding of linear motor - covers one phase by inner conducting layer surrounded by insulation and outer conducting layer
DE4409794C1 (en) * 1994-03-22 1995-08-24 Vem Elektroantriebe Gmbh Fastening for equalising connection lines of high-power DC machines

Also Published As

Publication number Publication date
AU2988997A (en) 1998-01-05
WO1997045929A2 (en) 1997-12-04
DE29780444U1 (en) 1999-05-20

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