ALTERNATING-CURRENT MOTORS
Primary circuit:

#o = -Zo/o + Z(J0- /,)• '
Secondary energy circuit:

0 = Zi/! + Z (/! - 70) - jSZ72.
Secondary magnetizing circuit :

0 = Z1I2 + Zh - JSZ (/0 - /O ;
hence, from (45) and (46) :

T =
•l •

and, substituted in (44) :
Primary current:

Secondary energy current:

T __ 771

/ 1 — JQ

Secondary magnetizing current:

T

h =

•"•"!

E.m.f. of rotation of secondary energy circuit:

W _ fl-Q<7 J 027? ^'^1

Wl ~ — J^-^/2 == ^> -&0 ~^F"" '

J\

E.m.f. of rotation of secondary magnetizing circuit:

<77r_ C7 A_ r,

W* = - j"S2T (/o - /i) = - j/S
where:

K = Z0 (Z2s0 + 2ZZi + ZS) + ZZi (Z
It is, at synchronism, S = 1, So = 0:

Zt~(2Z~+Zl) + Z (Z + Zd'

315
(44)
(45)
(46)
(47)
(48)
(49)
(50)
(51)
(52)
(53)
(54)