Electricity Control: A Treatise on Electric Switchgear and Systems of Electric TransmissionC. Griffin, 1904 - 231 Seiten |
Im Buch
Ergebnisse 1-5 von 24
Seite 28
... core . The rear end of the core is provided with a cap of insulating material C which is unaffected by heat , and which securely holds one end . of the resistance wire B. Two nuts F are also provided on this end of the core for clamping ...
... core . The rear end of the core is provided with a cap of insulating material C which is unaffected by heat , and which securely holds one end . of the resistance wire B. Two nuts F are also provided on this end of the core for clamping ...
Seite 69
... core in a solenoid . As the magnetic pull upon a core partly immerged in a solenoid is definite for a given current and a given length of core in the solenoid , the current at which the cutout will be operated may be predetermined by ...
... core in a solenoid . As the magnetic pull upon a core partly immerged in a solenoid is definite for a given current and a given length of core in the solenoid , the current at which the cutout will be operated may be predetermined by ...
Seite 70
... core is sucked up , due to the attraction of the solenoid and the upper half of the core fixed in the solenoid . When the cone portion of the lower half of the core is just entering the hollow cone in the upper core the attraction is ...
... core is sucked up , due to the attraction of the solenoid and the upper half of the core fixed in the solenoid . When the cone portion of the lower half of the core is just entering the hollow cone in the upper core the attraction is ...
Seite 71
... core , in addition to releasing the catch , actually hits the contact arm with a smart blow , thereby ensur- ing its being instantly opened . The contact L merely acts as a buffer to absorb the blow due to the rapid opening of the ...
... core , in addition to releasing the catch , actually hits the contact arm with a smart blow , thereby ensur- ing its being instantly opened . The contact L merely acts as a buffer to absorb the blow due to the rapid opening of the ...
Seite 72
... core impinges against another projection on the catch I , thereby releasing the hold of the catch on the tube M. The spring E is thus permitted to lift the connecting piece from the main contacts , and the circuit is momentarily carried ...
... core impinges against another projection on the catch I , thereby releasing the hold of the catch on the tube M. The spring E is thus permitted to lift the connecting piece from the main contacts , and the circuit is momentarily carried ...
Andere Ausgaben - Alle anzeigen
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.