The control of the electric circuit includes (1) control of the immediate circuit to the windings (as, for example, opening and closing the circuit, controlling a space-discharge device or an impedance connected in series with the circuit and the motor winding, or introducing an aiding or opposing source of e.m.f. in the circuit in addition to the main or prime source of e.m.f.) and also (2) control of the source of energy which supplies the energizing current to the motor (as, for example, controlling the energy input to the source, as by controlling a prime mover which drives a generator, or by controlling the electrical input to an electrical converter).
(The control of the electric circuit includes; controlling; the energy input to the source) (an impedance; connected; ) (energy; supplies; the energizing current; to the motor) (the motor; winding; ) (a prime mover; drives; a generator) (the motor; introducing; an aiding or opposing source of e.m.f. in the circuit)
The control of the electric circuit includes an impedance energy the motor a prime mover the motor
controlling connected supplies winding drives introducing
the energy input to the source
the energizing current to the motor
a generator
an aiding or opposing source of e.m.f. in the circuit