Electricity Control: A Treatise on Electric Switchgear and Systems of Electric TransmissionC. Griffin, 1904 - 231 Seiten |
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Seite 4
... prevent excessive arcing on interrupting a circuit are dealt with in Chapter III . ( 2 ) The area of the conductors may be insufficient to carry the working current , and as a consequence the rise of temperature due to C2R losses may be ...
... prevent excessive arcing on interrupting a circuit are dealt with in Chapter III . ( 2 ) The area of the conductors may be insufficient to carry the working current , and as a consequence the rise of temperature due to C2R losses may be ...
Seite 12
... prevent the bolts from working loose , though a Thackeray washer between the head of a bolt and the eye of a connector may do so . As a further precaution it is advisable to support cables independently of the contacts , so that ...
... prevent the bolts from working loose , though a Thackeray washer between the head of a bolt and the eye of a connector may do so . As a further precaution it is advisable to support cables independently of the contacts , so that ...
Seite 14
... prevented from working loose by the tension upon them due to the divided parts of the socket being compressed together , the effect being very similar to that of the Thackeray washer . A form of connector designed by the author is ...
... prevented from working loose by the tension upon them due to the divided parts of the socket being compressed together , the effect being very similar to that of the Thackeray washer . A form of connector designed by the author is ...
Seite 32
... - ( A ) The formation of an arc is prevented by very rapid separation of the contacts , thus increasing the gap between the points of contact to a non - sparking distance without generating sufficient heat to vaporise 32.
... - ( A ) The formation of an arc is prevented by very rapid separation of the contacts , thus increasing the gap between the points of contact to a non - sparking distance without generating sufficient heat to vaporise 32.
Seite 35
... designed to prevent this abnormal 1 See reference to danger of suddenly interrupting an H.T. circuit ( Chapter X. ) . rise of pressure . The practice at one time was CIRCUIT - BREAKERS , OR CURRENT - INTERRUPTING DEVICES . 35.
... designed to prevent this abnormal 1 See reference to danger of suddenly interrupting an H.T. circuit ( Chapter X. ) . rise of pressure . The practice at one time was CIRCUIT - BREAKERS , OR CURRENT - INTERRUPTING DEVICES . 35.
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Häufige Begriffe und Wortgruppen
alternating current ammeter amperes apparatus armature arrangement battery Battery Regulating booster brush bus bars cable carried catch centre CHARLES GRIFFIN choking coil circuit-breaker closed conductor connector consequently constructed controlling core Crown 8vo current cutouts device diagram direct current direction discriminating cutout dynamo earth Electrical Engineers excess current EXETER STREET feeder panels Ferranti field switch fuse gallery Handsome Cloth heavy current high-tension horn break illustrated in fig inserted insulator iron lamps Large 8vo large number lightning arrestor load long bars low-tension magnetic main bus bars main switch metal Metallurgy motor mounted nected operating handle parallel Plates plug plunger porcelain positive and negative Practical regulating switch release resistance reverse current Revised rheostat rotation rotor SECOND EDITION series winding shaft short bars short circuit shown in fig shunt winding solenoid station STRAND sub-station supply switchboard switchgear synchroniser terminals third wire three-phase transformer tube turbine voltmeter volts
Beliebte Passagen
Seite 40 - CONTENTS.— Resolution and Composition of Forces— Work done by Machines and Living Agents — The Mechanical Powers: The Lever; Derricks as Bent Levers— The Wheel and Axle : Windlass ; Ship's Capstan ; Crab Winch— Tackles : the "Old Man...
Seite 83 - SKETCHES OF BRITISH BIRDS IN THEIR HAUNTS. BY CHARLES DIXON. The Spacious Air. — The Open Fields and Downs. — In the Hedgerows.— On Open ; Heath and Moor. — On the Mountains. — Amongst the Evergreens. — Copse and Woodland. — By Stream and Pool. — The Sandy Wastes and Mudflats.— Sea-laved Rocks.— Birds of the Cities.— INDEX. "Enriched with excellent illustrations. A welcome addition to all libraries.
Seite 26 - CONTENTS. — Classification of different Types of Boilers — 425 Experiments on English and Foreign Boilers with their Heat Efficiencies shown in Fifty Tables — Fire Grates of Various Types — Mechanical Stokers — Combustion of Fuel in Boilers — Transmission of Heat through Boiler Plates, and their Temperature — Feed Water Heaters, Superheaters, Feed Pumps, &c. — Smoke and its Prevention — Instruments used in Testing Boilers — Marine and Locomotive Boilers — Fuel Testing Stations...
Seite 46 - Details. — Circuit Breakers or Arc Interrupting Devices.— Automatically Operated Circuit- Breakers. — Alternating Reverse Current Devices. — Arrangement of 'Bus Bars, and Apparatus for Parallel Running.— General Arrangement of Controlling Apparatus for High Tension Systems. — General Arrangement of Controlling Apparatus for Low Tension Systems. — Examples of Complete Installations. — Long Distance Transmission Schemes. " Not often does the specialist have presented to him so satisfactory...
Seite 36 - THEIR CONSTRUCTION AND MAINTENANCE. A Manual for Shipbuilders, Ship Superintendents, Students, and Marine Engineers. BY THOMAS WALTON, NAVAL ARCHITECT, AUTHOR OF
Seite 65 - This work will be a STANDARD." — Jeweller. "Any metallurgical process which REDUCES the COST of production must of necessity prove of great commercial importance. . . . We recommend this manual to ALL who are interested in the PRACTICAL APPLICATION of electrolytic processes.
Seite 24 - The Engineer. In Medium &vo. Pp. t-xv + 248, fully Illustrated. Price los. 6d. net. CONSTRUCTIONAL STEELWORK : Being Notes on the Practical Aspect and the Principles of Design, together with an Account of the Present Methods and Tools of Manufacture. BY AW FARNSWORTH, Associate Member of the Institute of Mechanical Engineers. "A worthy volume, which will be found of much assistance. ... A book of particular value.
Seite 35 - TOWN WATER SUPPLY, DRAINAGE of Lands, &c., also Economy and Efficiency Trials of Pumping Machinery. BY HENRY DAVEY, Member of the Institution of Civil Engineers, Member of the Institution of Mechanical Engineers, FGS, Ac.
Seite 33 - A MANUAL OF APPLIED MECHANICS : Comprising the Principles of Statics and Cinematics, and Theory of Structures, Mechanism, and Machines. With Numerous Diagrams. Crown 8vo, cloth, 12s. 6d. FOURTEENTH EDITION. II. A MANUAL OF CIVIL ENGINEERING : Comprising Engineering Surveys, Earthwork, Foundations, Masonry, Carpentry, Metal Work, Roads, Railways, Canals, Rivers, Waterworks, Harbours, &c.
Seite 56 - Mining and Geology to the Glasgow and West of Scotland Technical College. Units of Measurement, Conductors, &c. — The Theory of the Dynamo.— The Dynamo, Details of Construction and Working.— Motors.— Lighting Installations in Collieries. — Pumping by Electricity. — Electrical Haulage. — Coal Cutting. — Miscellaneous Applications of Electricity in Mines. — Coal Mines Regulation Act (Electricity). — INDEX. "A clear and concise introduction to electrical practice in collieries.