This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 Excerpt: ...are mounted on top of the turbine, the rotating field magnets being carried on the upper end of the vertical shaft which runs on a hydraulic footstep-bearing supplied with water at 400 pounds per square inch. Fig. 218 shows the assembly of one of these machines, half in section and half in elevation, and Fig. 223 is a ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 Excerpt: ...are mounted on top of the turbine, the rotating field magnets being carried on the upper end of the vertical shaft which runs on a hydraulic footstep-bearing supplied with water at 400 pounds per square inch. Fig. 218 shows the assembly of one of these machines, half in section and half in elevation, and Fig. 223 is a photograph of a complete set. The stator casing consists of an outer shell of cast iron, one inch thick, provided with 18 radial ribs, against which bed the armature laminations, these radial ribs being webbed together with three circumferential ribs of the same thickness, as shown in Fig. 219. The laminations are secured by feather keys fitting into dove-tail slots in the stampings, and parallel slots milled in the radial ribs. Fig. 219.4 shows the details of the laminations, and indicates the method of holding the space blocks for the ventilating ducts. Insu lation of the core plates is obtained by japanning the stampings, and noise due to the vibration of the laminations is avoided by Fig. 218.--General arrangement of 1500 kva. 1000 R.P.M. 6-pole British Thomson-Houston alternator. using very heavy end flanges with strong fingers projecting between each slot. Illustrations and details of the armature winding have already been given on pages 238 to 240. Fig. 219 A.--Armature laminations of British Thomson-Houston Co.'e 1500 kva. turbo-alternator. The following description of the treatment of the coils is given by H. S. Meyer The moisture is first all extracted by a vacuum process and then the interstices of the coil are completely filled with an asphalt compound, which is solid at the running temperatures of the machine. This filling, in addition to preventing the accumulation of moisture inside the coil through the movement of the air cause...
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
