Great Northern Cascade Tunnel, power station.... XXVIII (09) 1292 system, description. .... XXVIII (09) 1281 system, overhead struc- ture, description.. XXVIII (09) 1337 Grosse-Lichterfelde experimental railway, description....XVIII (01) 108 three-phase railway, tests.. Ground, arcing, detection with oscillograph. effect of series inductance. making resistance, effect of salt, tests.. XXVII (08) 715 tests under various con- ditions XXVII (08) 710 XXII (03) 423 .. XXVI (07) 1213 pipe, permanence of conductance.. relation between depth and conductance... XXVI (07) 1215 specification plates, copper, resistance tests... .XXVII (08) 726 resistance tests under various conditions.. XXVI (07) 1219 rod (see Lightning rod). shield for transformers.. (08) 429, 449; XXIX (10) 598, 607, 613, 614 energy loss due to inductance.. equipotential lines about.. XXII (03) 337 .XXVI (07) 875 experience.... transformer insulation.. .XXIII (04) 350 .XXVIII (09) 1195 experience, Chicago Edison Co..... .XXVI (07) 1611 method of connecting parallel operated star-connected generators objections potential strains effect size resistance used by Chicago Edison Co... XXVI (07) 1613 series resistor, design. use of ground as return. .XXVI (07) 1606 .XXVI (07) 1592 XXVI (07) 1600 .XXVI (07) 1588 value of resistance used by Int. Rapid XXVI (07) 1606 XXVI (07) 1239 .XIX (02) 166 .xxv (06) 819 Transit Co. Group drive (see Motors, applications). switch (see Switches). Guanajuato transmission line, construction data..... Gyration, radius of wheels. .XXVI (07) 959 Harbor defense, account of work done by Volunteer Elec- trical Corps in Boston.. Harmonic quantities, vector representation. Harmonics, artificial, sources in cable system. effect of grounded neutral... star-connected generator.. transformer connections.. .XIX (02) 727 even, production in commercial circuits.. XXVIII (09) 727, 733 currents and e. m. f's., tests. .XXIX (10) 809 triple, in interconnected neutral of star- connected generators, measurement. .XXIX (10) 781 spectrophotometric analysis, different Heat dissipated from wires, experiments. types... XXIX (10) 1069 .XXIX (10) 1063 .XXVIII (09) 363 storage of electric energy........ XXVII (08) 1600; XXIX (10) 678 equivalent wires under various conditions of cooling. XXVIII (09) 533 XXVIII (09) 531 XXVIII (09) 539 ...... XXIX (10) 121 ...... XXVI (07) 969 Heraeus wire temperature coefficient of resistivity. laws for electrode losses.. Hewlett link insulator, construction. description Heyland diagram for single-phase motor, derivation.. struction ..... Hoe printing press, motor drive. Hoists (see Hoisting). acceleration, calculation coal, acceleration curves, observed. power requirements Ward Leonard system, disadvantages. calculation ....xxv (06) 485 .XXVI (07) 1261 con- static moment, variation, calcula- tion cylindrical-drum, load diagrams. XXIX (10) 304 electric, Ilgner system compared with steam tests. XXIX (10) 331 induction motor, characteristics. motor power, calculation... rating, determination friction torque, calculation... log, typical mine, acceleration, choice.. balancing system, requirements.. electric, balancing system, characteristics. diagrams, calculation motors, choice of control. power requirements Whiting, load diagram, calculation. reel, load diagram calculation retardation, calculation steam, coal-to-rock ratio, tests.. .XXIX (10) 313 .XXIX (10) 332 .XXIX (10) 331 service tests .XXIX (10) 331 Ward Leonard system, connection diagram. service tests Hoisting, electric, motor rating, determination. mine, balancing system, requirements. electric, advantages .. balancing system, characteristics. XXIX (10) 313 economy, estimated .XXIX (10) 319 Ilgner system ...... flywheel-motor-generator set, use. XXIX (10) 275 compared with Homopolar generators (see Generators, acyclic). Horn-gap arrester (see Lightning arresters). .XXIX (10) 332 XXIX (10) 287 Hospitalier ondograph, description.. Hot water electric heating (see Heating). Hot-wire comparator (see Comparator). Housatonic river, minimum flow.. Houston and Kennelly luminometer (see Luminometer). Huber system of current collection (see Current collectors). tests, light and heavy flywheels. .... XXIII (04) 354 effect of flywheel upon engine governor....... XXIII (04) 357 natural period of engine-generator unit, .XXIII (04) 360 .XVIII (01) 786 |