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Polyphase alternator short circuit 44 oscillograms 48, 49 Power diagram of open compound-circuit transient 114 closed compound-circuit transient Ill, 113 dissipation constant 88 of section of compound circuit 108 double-energy transient 66 electric 18 flow in compound circuit 90 of 'line transient 88, 89 of line oscillation 79 transfer constant of circuit 94 sectiDn of compound circuit 108 in compound-circuit oscillation 90 of traveling wave 95 Progressive change of phase of line oscillation 75 Propagation of transient in line 74 velocity of electric field 74 field 129 Proportionality in simple transient 4 Pulsation, permanent, of field current in single-phase alternator short circuit 45 of transient energy 61 transient, of magnetomotive force and field current at poly- phase alternator short circuit 41 Quadrature relation of stationary wave 88 Quantity of electricity 14 Quarter-wave oscillation of line 81, 82 Reactance of alternator, synchronous and self-inductive 37 Reaction, armature, of alternator 37 Reactive power wave 88 Reflected wave at transition point 118 Reflection at transition point 118 Relation between capacity and inductance of line 81 standing and traveling waves 101 Reluctance 18 Reluctivity 18 INDEX. 147 PAGE Resistance 18 effective, of line transient 78 Resistivity 18 Resolution into transient and permanent 30 Rise of field current at alternator short circuit 40 Rotating field, transient 34 Self-induction, e.m.f. of 12 Separation of transient and permanent 27, 30 Ships; deceleration as transient 7 Short-circuit current of alternator, momentary 37 construction 40 calculation 44 surge of circuit 62 Simple transient 4 equation 6 Single-phase alternator short circuit 45 oscillogram 50 short circuit of alternators 45 oscillograms 48, 50 Single-energy transient . 7 SINGLE-ENERGY TRANSIENT OF IRON-CLAD CIRCUITS. 52 SINGLE-ENERGY TRANSIENTS, CONTINUOUS CURRENT. 19 SINGLE-ENERGY TRANSIENTS IN A.C. CIRCUITS 30 Specific capacity 16, 17, 18 Standing waves 97 originating from traveling waves 101 see Stationary oscillation and Oscillation, stationary. Start of standing wave by traveling wave 101 Starting current of transformer, oscillogram ^ 57 oscillation of line 86 transmission line, oscillogram 76, 77 of rotating field 34 transient of A.C. circuit 32 magnetic circuit 28 three-phase circuit 32 Static induction of line, calculation 81 Stationary oscillation of open line 86 see Line oscillation and Standing wave. Steepness of ironclad transient 58 wave front and power-transfer constants of impulse 105 Step-by-step method of calculating transient of ironclad circuit 53 Storage of energy as cause of transients 3 Superposition of fields 120 Surge admittance and impedance of circuit 61, 84 Symbolic method reducing A.C. phenomena to permanents 9 Symmetrical pulsation of field current at single-phase alternator short circuit . . 45 148 INDEX. PAGE Terminal conditions of line oscillation 84 Three-phase alternator short circuit 44 oscillograms 49 Three-phase circuit, inductance and capacity calculations 136 mutual inductance and capacity 138 current transient 32 .-. magnetic-field transient 34 Time constant 22 decrement 94 of compound circuit 108 Transfer of energy in double-energy transient 60 by traveling wave 92 in compound circuit oscillation 90 Transformation ratio at transition point of compound circuit 117 Transformer as generator of transient energy Ill, 113 Transformer surge 62 Transient current in A.C. circuit 31 double-energy 7 power transfer in compound-circuit 112 single-energy 7 of rotating field 34 separation from permanent 27, 30 short-circuit current of alternator 37 construction 40 calculation 44 and periodic components of oscillation 72 Transients, double-energy 59 caused by energy storage 3 fundamental condition of appearance 4 general with all forms of energy 4 as intermediate between permanents 2 nature 1 single-energy A.C. circuit 30 continuous current 19 Transition point, change of phase angle 117 reflection 118 voltage and current transformation 117 Transmission-line surge 63 transient 73 also see Line. Transmitted wave at transition point 118 Transposition of line conductors 138 TRAVELING WAVES 88 Traveling wave, equation 95 as impulses 105 preceding stationary oscillation 101 of very high frequency 104 INDEX. 149 PAGE Turboalternators, momentary short-circuit current 37 construction 40 calculations 44 Undamped oscillations 97 Unidirectional energy transfer in transient 60 Uniform power flow in traveling wave 92 Unsymmetrical pulsation of field current at single-phase alternator short circuit 46 Varying frequency oscillation of transformer 64 Velocity constant of line 78, 83 relation between line capacity and inductance 81 measure, calculation of circuit length 109 of propagation of electric field 74, 129 transient of ship 7 unit of length of line 83 of length in compound circuit 92 Very high frequency traveling wave 104 Voltage 18 gradient . 15, 17 relation of section of compound oscillating circuit 17 rise of quadrature phase in single-phase alternator short circuit 47 at transition point of compound oscillation 117 of single-energy magnetic transient 27 transient, maximum 61 Wave front of impulse 105 length of line oscillation 79, 80 and period in velocity unit 92 standing, see Standing wave. WAVES, TRAVELING 88 TOO i 33417 749213 753 Engineering Library UNIVERSITY OF CALIFORNIA LIBRARY. 