Stator of generator

• US 4,429,244 A
• Filed: 07/16/1981
• Issued: 01/31/1984
• Est. Priority Date: 12/06/1979
• Status: Expired due to Fees

• Current Assignee: Vsesojuzny Proektno-Izyskatelsky Nauchno-Issledovatelsky Institut "Gidroproekt" Imeni S YA Zhuka
• Original Assignee: Vsesojuzny Proektno-Izyskatelsky Nauchno-Issledovatelsky Institut "Gidroproekt" Imeni S YA Zhuka
• Inventors: Nikitin, Pavel Z., Nemeni, Tibor M., Sharashkin, Andrei M., Tjurin, Albert V., Zolotov, Lev A., Bezchastnov, Gennady A., Nikolsky, Alexandr I.
• Primary Examiner(s): Gonzales, John
• Application Number:
  US06/285,106
• Time in Patent Office: 929 Days
• Field of Search: 310/254, 310/45
• US Class Current: 310/43
• CPC Class Codes: H02K 2203/15 Machines characterised by cable windings, e.g. high-voltage cables, ribbon cables
• CPC Class Codes: H02K 3/24 with channels or ducts for cooling medium between the conductors
• CPC Class Codes: H02K 3/32 Windings characterised by the shape, form or construction of the insulation
• CPC Class Codes: H02K 3/40 for high voltage, e.g. affording protection against corona discharges
• CPC Class Codes: H02K 3/48 in slots
• CPC Class Codes: Y10S 174/20 Stator

Abstract

A stator of a generator, which stator comprises a housing accommodating a slotted magnetic core 2, a dielectric oil-separating cylinder 4 arranged next to the internal surface of the magnetic core, and a winding composed of two series-connected half-windings 7, 8, each composed, in turn, of high-voltage elements 6. The high-voltage elements 6 of one half-winding 8 in the slotted part of the stator are placed in insulation sleeves 14 which have hollow projections 15 on their internal surfaces. Placed between the hollow projections is a thermosetting compound. The part of each insulation sleeve, which extends beyond the slotted part of the stator, has a cylindrical portion integral with a cone-shaped cable-type termination reinforced with current-carrying layers.

Claims

1. A stator of a generator, comprising a housing accommodating a slotted magnetic core of laminated steel, a dielectric oil-separating cylinder arranged next to the internal surface of said magnetic core, and a winding composed of high-voltage elements divided by spacers, arranged in the slots and secured by wedges, characterized in that the winding is made of two half-windings 7, 8 placed in series and separated by an oil-separating spacer 12, the high-voltage elements 6 of one of the half-windings, arranged in the stator slots, being accommodated in insulation sleeves 14 having hollow projections 15 on the internal surfaces thereof with a thermosetting compound placed between said hollow projections, the part of each insulation sleeve 14, which extends beyond the stator slot, having a cylindrical portion 22 and a cone-shaped cable-type termination 23 of a predetermined size, reinforced with current-carrying layers 24, said cylindrical portion being integral with said cable-type termination.

2. A stator as claimed in claim 1, characterized in that the current-carrying layers 24 are made of foil.

3. A stator as claimed in claim 1, characterized in that the current-carrying layers 24 are made of metal mesh.

4. A stator as claimed in claim 1, characterized in that the current-carrying layers 24 are produced by deposition of a current-carrying material.

5. A stator as claimed in any claim from 1, characterized in that the high-voltage elements 6 in the insulation sleeves 14 are interposed between the bottom 13 of the slot 3 and oil-separating spacer 12.

6. A stator as claimed in claim 2, characterized in that the high-voltage elements 6 in the insulation sleeves 14 are interposed between the bottom 13 of the slot 3 and oil-separating spacer 12.

7. A stator as claimed in claim 3, characterized in that the high-voltage elements 6 in the insulation sleeves 14 are interposed between the bottom 13 of the slot 3 and oil-separating spacer 12.

8. A stator as claimed in claim 4, characterized in that the high-voltage elements 6 in the insulation sleeves 14 are interposed between the bottom 13 of the slot 3 and oil-separating spacer 12.