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Old November 9th 03, 09:45 PM
Roy Lewallen
 
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And so your prediction is. . . ?

Roy Lewallen, W7EL

Richard Harrison wrote:
Roy, W7EL wrote:
"And, Richard (Harrison), who said something like "an inductor without
phase shift is like"...I don`t recall ; hot dog without ketchup or
something."

My analogy may not have been apt, but fact is that you don`t have an
inductor without phase shift. The current lags the voltage in an
inductor.

My dictionary says that phase is a particular stage or point of
adbvancement in a cycle; the fractional part of the period through which
the time has advanced, measured from some arbitrary origin.

Apply a voltage or the voltage across the inductance. Current does not
change instantaneously in an inductance, but it lags the imposed voltage
change.

Lag is to move slowly or fall behind. In a circuit containing resistance
and inductance, almost all real world circuits, current lags the
voltage. This is phase shift by definition. We correct power factor to
overcome phase lag and to eliminate the excess current and loss from the
inductive charging and discharging current of an inductive circuit.
Reactance only stores energy and does no useful work.

I reiterate the accuracy of my postings in this thread, and indeed,
inductance and phase shift are inseparable. Please note that inductance
can be neutralized with capacitance.

Best regards, Richard Harrison, KB5WZI


 
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