Siemens DTU3005-B Spezifikationen PDF herunterladen (Seite 28)

Inductive Loads Inductive loads include motors, transformers, and solenoids. In

a purely inductive circuit, current lags behind voltage by 90°.

Current and voltage are said to be “out of phase.” Inductive

circuits, however, have some amount of resistance. Depending

on the amount of resistance and inductance, AC current will lag

somewhere between a purely resistive circuit (0°) and a purely

inductive circuit (90°). In a circuit where resistance and

inductance are equal values, for example, current lags voltage

by 45°.

Capacitive Loads Capacitive loads include power factor correction capacitors and

filtering capacitors. In a purely capacitive circuit, current leads

voltage by 90°. Capacitive circuits, however, have some amount

of resistance. Depending on the amount of resistance and

capacitance, AC current will lead voltage somewhere between

a purely resistive circuit (0°) and a purely capacitive circuit (90°).

In a circuit where resistance and capacitance are equal values,

for example, current leads voltage by 45°.

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Siemens DTU3005-B Spezifikationen Seite 28