SINGLE-PHASE INDUCTION MOTOR

103

0.01 - 0.1; 0.1 -f- 0.33 0.1 + 0.3 j 0.195 + 0.592 j 0.2 + 0.6 j - 0.005 - 0.008 j

0.25 + 0.3 j 0.336 + 0.596; 0.35 + 0.6 j - 0.014 - 0.004;

0.6 +0.3; 0.661+0.620; 0.7 +0.6; -0.039 + 0.020;

1.6 + 0.3; 1.552 + 0.804; 1.7 + 0.6 j - 0.148 + 0.204;

A. PHASE-SPLITTING DEVICES

Parallel Connection

67. Let .the motor contain two primary circuits at right angles
(electrically) in space with each other, and of equal effective
impedance:

Z = r + jx.

These two motor circuits are connected in parallel with each

FIG. 36.—Diagram of phase-splitting device with parallel connection of.

motor circuits.

other between the same single-phase mains of voltage, e0, but
the first motor circuit contains in series the impedance

Zi = TI + jxi,
the second motor circuit the impedance:

^2 = 7-2 + fa*,

as shown diagrammatically in Fig. 36.
The two motor currents then are:

(32)
(33)

J = h + /*
the two voltages across the two motor coils: