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' CONTENTS.

PAQK

11. Electromotive force, electrifying force or voltage gradient.
Dielectric field intensity and dielectric density. Specific capacity
or permittivity. Velocity of propagation.

12. Tabulation of corresponding terms of magnetic and of die-
lectric field. Tabulation of analogous terms of magnetic, dielec-
tric, and electric circuit.

LECTURE III. — SINGLE-ENERGY TRANSIENTS IN CONTINUOUS-CUR-

RENT CIRCUITS ....................................... * * * * '^

13. Single-energy transient represents increaao or doeroaao of
energy. Magnetic transients of low- and medium-voltage circuits
Single-energy and double-energy transients of capacity, DiscuH-
sion of the transients of <J>, i, e, of inductive circuit. Exponen-
tial equation. Duration of the transient, time constant. Numer-
ical values of transient of intensity 1 and duration 1. The three
forms of the equation of the magnetic tranwent, Himpliflcation
by choosing the starting moment an ssero of time,

14. Instance of the magnetic transient of a motor field. ( toleula-
tion of its duration.

15. Efect of the insertion of resistance on voltage and duration of
the magnetic transient. The opening of inductive circuit, The
effect of the opening arc at the switch,

16. The magnetic transient of closing an inductive circuit, ( ttnutral
method of separation of transient and of permanent terum during
the transition period.

LECTURE IV. — SINGLE-ENERGY TRANSIENT** or ₁

RENT CIRCUITS .............. . .................. , , . ...... . 30

17. Separation of current into permanent and transient component*
Condition of maximum and of zero transient, The ntartmg of an
alternating current; dependence of the transient on the phtwt*; maxi-
mum and zero value.

18. The starting transient of the balanced threw-phawa HyMtcrn.
Relation between the transients of the three phaw«, Ht art Ing
transient of three-phase magnetic; field, and its oontttructlon. The
oscillatory start of the rotating field. Its independence of the phtwtt
at the moment of start, Maximum value of rotatmg*fi<4d Iran*
sient, and its industrial bearing.

19. Momentary short-circuit current of synchronous altnrmitor,
and current rush in its field circuit. Relation between voltttgo,
load, magnetic field flux, armature reaction, «elf-induotive nmctatxce,
and synchronous reactance of alternator. Ratio of momentary to
permanent short-cicurit current,

20. The magnetic field transient at short circuit of alternator, It*
effect on the armature currents, and on the field current Numeri-
cal relation between the transients of magnetic flux, armature (mrrwitu,
armature reaction, and field current, The starting tnuuthmt of thca
armature currents, The transient full-frequency pubatbm of the



	' CONTENTS. PAQK 11. Electromotive force, electrifying force or voltage gradient. Dielectric field intensity and dielectric density. Specific capacity or permittivity. Velocity of propagation. 12. Tabulation of corresponding terms of magnetic and of die- lectric field. Tabulation of analogous terms of magnetic, dielec- tric, and electric circuit. LECTURE III. — SINGLE-ENERGY TRANSIENTS IN CONTINUOUS-CUR- RENT CIRCUITS ....................................... * * * * '^ 13. Single-energy transient represents increaao or doeroaao of energy. Magnetic transients of low- and medium-voltage circuits Single-energy and double-energy transients of capacity, DiscuH- sion of the transients of <J>, i, e, of inductive circuit. Exponen- tial equation. Duration of the transient, time constant. Numer- ical values of transient of intensity 1 and duration 1. The three forms of the equation of the magnetic tranwent, Himpliflcation by choosing the starting moment an ssero of time, 14. Instance of the magnetic transient of a motor field. ( toleula- tion of its duration. 15. Efect of the insertion of resistance on voltage and duration of the magnetic transient. The opening of inductive circuit, The effect of the opening arc at the switch, 16. The magnetic transient of closing an inductive circuit, ( ttnutral method of separation of transient and of permanent terum during the transition period.

	LECTURE IV. — SINGLE-ENERGY TRANSIENT** or ₁ RENT CIRCUITS .............. . .................. , , . ...... . 30 17. Separation of current into permanent and transient component* Condition of maximum and of zero transient, The ntartmg of an alternating current; dependence of the transient on the phtwt; maxi- mum and zero value. 18. The starting transient of the balanced threw-phawa HyMtcrn. Relation between the transients of the three phaw«, Ht art Ing transient of three-phase magnetic; field, and its oontttructlon. The oscillatory start of the rotating field. Its independence of the phtwtt at the moment of start, Maximum value of rotatmgfi<4d Iran* sient, and its industrial bearing. 19. Momentary short-circuit current of synchronous altnrmitor, and current rush in its field circuit. Relation between voltttgo, load, magnetic field flux, armature reaction, «elf-induotive nmctatxce, and synchronous reactance of alternator. Ratio of momentary to permanent short-cicurit current, 20. The magnetic field transient at short circuit of alternator, It* effect on the armature currents, and on the field current Numeri- cal relation between the transients of magnetic flux, armature (mrrwitu, armature reaction, and field current, The starting tnuuthmt of thca armature currents, The transient full-frequency pubatbm of the