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Great Northern Cascade Tunnel, power station..... XXVIII (09) 1292

system, description. ...XXVIII (09) 1281
system, efficiency..... . XXVIII (09) 1313
system, locomotive, de-
sign and perform-

XXVIII (09) 1284 system, overhead con

struction .......XXVIII (09) 1301 system, overhead struc

ture, description. .XXVIII (09) 1337 Grosse-Lichterfelde experimental railway, description..

...XVIII (01) 108 three-phase railway, tests..

XIX (02) 517 Ground, arcing, detection with oscillograph.

XXVII (08) 1557 effect of series inductance.

.XXVII (08) 749 resistance

XXVII (08) 750 production for test purposes.

. XXVII (08) 742 cable on Guanajuato line...

.xxvi (07) 1245 connection for lightning arresters, method of making

.XXVII (08) 709 high-tension lines, practice. .XXIII (04) 592 inductance

..XXVII (08) 728 resistance, effect of salt, tests. .....XXVII (08) 715

tests under various con-
ditions

XXVII (08) 710 variation

with depth, tests

.XXVII (08) 712 various soils, tests. XXVII (08) 723 indicator, connections

.XXII (03) 423 pipe, permanence of conductance.

.xxvI (07) 1213 relation between depth and conductance. ..XXVI (07) 1215 resistance, experimental investigation...

.....XXVI (07) 1209 tests under various conditions. . XXVI (07) 1219 specification

XXVII (08) 726 plates, copper, resistance tests..

.XXVI (07) 1217 resistance tests under various conditions. . XXVI (07) 1219 resistance variation with moisture, tests.. .XXVI (07) 1210

temperature, tests....XXVI (07) 1210 rod (see Lightning rod). shield for transformers..

XXIII (04) 553 objections

XXIII (04) 554 wire, advantages

XXVII (08) 449 barbed, experience

..XXII (03) 342 conductance, importance..

.XXIV (05) 995 effect on dielectric stresses, study. .XXVI (07) 873 effectiveness..

....XXV (06) 415, 428; XXVI (07) 884; XXVII

(08) 429, 449; xxix (10) 598, 607, 613, 614 energy loss due to inductance..

XXII (03) 337 equipotential lines about.

.XXVI (07) 875 experience.... ......XXII (03) 370; XXVI (07) 888; XXVII

(08) 414, 761 Taylor's Falls line..

XXVII (08) 414 with barbed wire.

.XVIII (01) 539 grounded neutral, objections. .XXII (03) 405, 414 installation

XXII (03) 335 parallel potential nearby, equation. .XXVI (07) 876 pole-top construction

.XXVI (07) 434 potential nearby, equation.

.XXVI (07) 874

Ground, wire, (continued) practice

...XXIII (04) 592 protective zone

...XXIV (05) 995 resistance tests under various conditions. . XXVI (07) 1219 shielding action calculation.. XXII (03) 333, 345 spacing of grounds....

XXVII (08) 430 support, construction

XXVII (08) 418 Grounded neutral, advantages.

.XXVI (07) 1586, 1597, 1631 bibliography

..XXVI (07) 1618 dangers

XXII (03) 405 directions for grounding.

.XXVI (07) 178 disadvantages..

XXVI (07) 1588, 1597, 1631 effect on harmonics.

XXV (06) 702 lightning arrester performance..

.XXVI (07) 1587, 1622 short circuits

.XXVI (07) 1600 synchronous converter operation

.XXIII (04) 350 telephone and telegraph lines

.XXVIII (09) 1195 transformer insulation. .XXII (03) 386 experience, Chicago Edison Co.. XXVI (07) 1611

Int. Rapid Transit Co... XXVI (07) 1605

transmission line...... XXVI (07) 1635 method of connecting parallel operated star-connected generators

.XXIX (10) 805 objections

.XXII (03) 414 potential strains

.XXII (03) 401 resistance used by Chicago Edison Co...XXVI (07) 1613 series resistor, design.

....XXVI (07) 1606 effect

XXVI (07) 1592 size

XXVI (07) 1600 use of ground as return.

.XXVI (07) 1588 value of resistance used by Int. Rapid Transit Co.

XXVI (07) 1606 Group drive (see Motors, applications).

switch (see Switches). Guanajuato transmission line, construction data.... .XXVI (07) 1239 Gyration, radius of wheels...

.XIX (02) 166

Hair, human, diameter

.XXV (06) 819 Hall effect, definition

.XXVI (07) 959 electronic theory

XXVI (07) 958 Harbor defense, account of work done by Volunteer Electrical Corps in Boston...

.xix (02) 727 Harmonic quantities, vector representation.

.XXIX (10) 1242 Harmonics, artificial, sources in cable system.

XXVIII (09) 835 effect of grounded neutral...

..XXV (06) 702 star-connected generator.

..XXV (06) 704 transformer connections.

.XXV (06) 700 even, production in commercial circuits..XXVIII (09) 727, 733 in transformers, interconnected, explanation..XXIX (10) 900

observation..XXIX (10) 853 currents and e. m. f's., tests..XXIX (10) 809 observed during service. ....XXIX (10) 873

polyphase, observation. .XXIX (10) 865 triple, in interconnected neutral of starconnected generators, measurement..

......XXIX (10) 781

Hartford Electric Light Co. turbo-generator installation, description

..XXI (03) 450 Havana, Cuba, automatic telephone plant.

.XXIX (10) 79 Headlight, electric, early use.

..XXI (03) 173 experimental investigation

XXIX (10) 1053 high-power, effect on reading signals. .XXIX (10) 1054 vs. low-power

.XXIX (10) 1084 illumination at different distances, determination

XXIX (10) 1066 fixed point, determination. .XXIX (10) 1061 location on locomotive.

.XXIX (10) 1084 magnetite arc, tests...

.XXIX (10) 1082 photometrical measurements

.XXIX (10) 1061 spectral intensities

.XXIX (10) 1075 spectrophotometric analysis, different types...XXIX (10) 1069 total flux, determination..

.XXIX (10) 1063 Heat dissipated from wires, experiments.

XXVIII (09) 363 storage of electric energy........XXVII (08) 1600; XXIX (10) 678 Heater, electric, hot-water, cost compared with equivalent

fuel heater

XXVII (08) 655 life of elements.

..XXVII (08) 655 radiation, maximum capacity. XXVII (08) 1604, 1612 Heating, cables in ducts...

...XXIV (05) 409 coal gas, efficiency, theoretical.

XXVII (08) 1591 stove, efficiency

XXVII (08) 1605 curve, bare wire in sand..

.XXVI (07) 990 data, method of plotting.

.XXVIII (09) 537 dissipation in ventilated cores.

.XXVIII (09) 533 electric compared with gas...

XXVII (08) 1592 cooking (see Cooking). domestic work

XXVII (08) 1596 energy required to heat given space. XXVII (08) 1587 general discussion

XXVII (08) 1585 hot-water, fuel equivalent of electric energy

..XXVII (08) 667 system at Biltmore.

XXVII (08) 652 industrial work

XXVII (08) 1596 large building, cost.

XXVII (08) 1602 radiation, maximum capacity of heat

XXVII (08) 1604, 1612 gas, compared with electricity.

...XXVII (08) 1592 laminations, heat conductivity.

.XXVIII (09) 533 motor, induction, effect of enclosing.

.XXVIII (09) 551 high-reactance rotor. XXVIII (09) 539 varying dimensions. . XXVIII (09) 543

speed.. .XXVIII (09) 547 voltage unbalance. . . XXVIII (09) 582 heat conductivity of cores. ...XXVIII (09) 533 investigation

.XXVIII (09) 527 running, tests

XXVIII (09) 533 starting, tests

XXVIII (09) 531 temperature-loss diagram. .....XXVIII (09) 539 steam, by-product effect on cost of energy. XXIX (10) thermodynamic .....

XXVII (08) 1607, 1609 wires under various conditions of cooling. XXVI (07) 969 Heaviside's method of explaining wave motion.. .XXVII (08) 1312 Hefner lamps (see Lamps).

ers

I 21

Heraeus wire temperature coefficient of resistivity... ....XXV (06) 485 Hering's flux unlinking experiment..

XXVII (08) 1343 laws for electrode losses..

.XXIX (10) 465, 492 Hewlett link insulator, construction.

XXVI (07) 1261 description

XXVI (07) 1259 Heyland diagram for single-phase motor, derivation..XXIII (04) 435, 440 Hickley electrolytic rectifier for telegraph work... XXIX (10) 1315 High-tension committee report on standard line construction

XXIII (04) 571 Hoe printing press, motor drive..

....XX (02) 136 Hoists (see Hoisting). acceleration, calculation ....

XXIX (10) 295 coal, acceleration curves, observed.

.XX (02) 142 power requirements

.xx (02) 139 Ward Leonard system, disadvantages. xx (02) 191 conical-drum, load diagrams...

XXIX (10) 263 calculation

..XXIX (10) 300 static moment, variation, calculation

XXIX (10) 302 cylindrical-drum, load diagrams.

XXIX (10) 261

calculation XXIX (10) 292 cylindro-conical-drum, load diagrams.

.XXIX (10) 264 d.c. motor, induction-motor-generator set, characteristics

XXIX (10) 272 drum, inertia, calculation.

...XXIX (10) 304 electric, Ilgner system compared with steam tests.xxix (10) 331 service tests

XXIX (10) 328 windage loss

XXIX (10) 335 induction motor, characteristics. ..XXIX (10) 268 motor power, calculation...

XXIX (10) 323 rating, determination

.XXIX (10) 323 friction torque, calculation...

XXIX (10) 296 log, typical

.XXIX (10) 282 mine, acceleration, choice..

....XXII (03) 559 balancing system, requirements..

.XXIX (10) 308 electric, balancing system, characteristics. ...XXIX (10) 313 Koepe, load diagram, calculation.. .XXIX (10) 298 load curve

.xxv (06) 152 diagrams, calculation

.XXIX (10) 295 motors, choice of control.

.XXII (03) 558 power requirements

XXII (03) 555 Whiting, load diagram, calculation. .XXIX (10) 298 reel, load diagram

.XXIX (10) 257 calculation

.XXIX (10) 307 retardation, calculation

.XXIX (10) 295 steam, coal-to-rock ratio, tests.

.xxix (10) 332 compared with Ilgner electric system, tests

.XXIX (10) 331 service tests

.XXIX (10) 331 Ward Leonard system, connection diagram. xx (02) 141 service tests

...XX (02) 141 Hoisting, electric, motor rating, determination.

.XXIX (10) 323 mine, balancing system, requirements. .XXIX (10) 308 converter system, description.

.XXIX (10) 310 electric, advantages

XXIX (10) 251, 322 balancing system, characteristics. XXIX (10) 313 characteristics, d.c. motor, motorgenerator system...

XXIX (10) 272

Hoisting, mine, electric, (continued)

characteristics, induction motor
system

.XXIX (10) 268 compared with steam.

XXIX (10) 287 converter equalizer, use. .XXIX (10)

279 Creplet system

.XXIX (10) 281 economy, estimated

..XXIX (10) 319 flywheel-motor-generator set, use. xxix (10) 275 Ilgner system

.XXIX (10) 275 compared with

steam tests......XXIX (10) 331 service tests. ..XXIX (10) 328

windage loss. ...XXIX (10) 335 Johannesburg plant

XXIX (10) 291 load-factor

XXIX (10) 283 motor rating, determination.. ...XXIX (10) 323 reversible booster system, description

..XXIX (10) 312 savings, estimated

.XXIX (10) 289 Winona Copper Co. plant. XXIX (10) 327 load diagrams

..XXIX (10) 256 power distribution among hoists. ..XXIX (10) 283 steam, coal-to-rock ratio, tests..

.XXIX (10) 332 compared with electric.

.XXIX (10) 287 service tests

XXIX (10) 331 time characteristics

.XXIX (10) 283 Homopolar generators (see Generators, acyclic). Horn-gap arrester (see Lightning arresters). Hospitalier ondograph, description...

XXIV (05) 193 Hot water electric heating (see Heating). Hot-wire comparator (see Comparator). Housatonic river, minimum fow.....

.XXV (06) 184 Houston and Kennelly luminometer (see Luminometer). Huber system of current collection (see Current collectors). Hudson river, minimum flow.....

..XXV (06) 184 Hulett unloader, control system....

XXVIII (09) 943 Hunting, alternators, angular displacement, standard.....XXIII (04) 353 cause

.XVIII (01) 757 natural frequency of mechanical oscillation

..XXIII (04) 354 remedy

.XVIII (01) 757 tests, light and heavy flywheels... XXIII (04) 354 effect of Aywheel upon engine governor...

.......XXIII (04) 357 natural period of engine-generator unit, formula

.XXIII (04) prevention, dampers, action..

.XVIII (01)

786 synchronous apparatus, effect of flywheel......XXII (04) 359 converters, effect of commutating poles

..XXIX (10) 1642 experience

XXIII (04) 345 Hutchinson method of calculating temperature rise of railway motors

.XXII (03) 661 Hydrogen, liquefaction

XXIV (05) 1018 Hysteretic angle of advance, definition.

...XXV (06) 707

360

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