SINGLE-PHASE COMMUTATOR MOTORS 401

Substituting now (85) respectively (87), (88) into (78), (81) (84),
and into:

rrj/ ' C"7 / T T \

M-jSZfoJi-tt, (89)

gives the
Equations of the Series Repulsion Motor:

K - A3- jSc0 — X4c0 (co - jS) -f
approximately:

K = c0 (1 - c0X4) (c0 - jS).

Inducing, or Compensator Current:

/2 = " i*_
approximately:

0

et(l - X2)

~"

CoZ (1 — 00X4) (Co —^*S) CoZ (1 — 00X4)

Armature, or Secondary Current:

— ^JJ- r"
approximately:

II — 7

(1 — 00X4) ICo —' J>S
Brush Short-circuit Current:

•r CAd ! •*• • ni / -t t

-c0X4)

approximately :

Commutation Current:

approximately :

(1 — £0X4) I Co — ,

1 —

-Co)] >

(90)

(91)

(92)

(93)

(94)

H (<

m

20