46 ELECTRICAL APPARATUS
where : _ r'i [s (1+ a) - a]

1 m _ *', [s (1 + a) - a]2
(9) - a)2; (10)

2 m m = rV + sV(s (1 +o)

exciting current of second motor:

/'00 = eF' = e (g1 - #>'),

(ID

hence, primary current of second motor, and also secondary
current of first motor:

where :

'0 = fj_ = /'j -j- f'QQ

= e (bi - j"62),
61 = ai + fir',

(12)

(13)

the impedance of the circuit comprising the primary of the
1 second, and the secondary of the first motor, is:

Z = Z\* + Z'02 = (?*i + r'o) + js (xi + x'o), (14)

hence, the counter e.m.f., or induced voltage in the secondary
of the first motor, of frequency is:

n

hence, reduced to full frequency :

where:

Ci = 1 +

£2 =

!>i H- («i + #'o) 62
ri + r/o L

(15)
(16)

33. The primary exciting current of the first motor is:

/oo = IfliY

= e (di —
where:

(17)
(18)