Archimedes' Lever said:
These meters are NOT a typical motor, dumbass.
There is no "rotor" other than the Al disc, and it exhibits NO field.
It responds to the field around it. Period.
the rotor has eddy currents which produce a field interacting with the
"stator field" to produce torque. Essentially it is a form of induction
motor and can be analyzed as such.
If your previous remark was true, sure. But it was not a true remark.
There is no "rotor", and there is no coil or magnet on the part that a
dope like you would call the rotor.
The Aluminum is what responds to the field. That is why this "motor"
type will never be seen as a mechanical power source. The torque applied
by the field is enough to turn it, and the gear resistance, but there is
no way one could perform any real "work" with such a "motor".
It, in fact, can be argued as being incorrectly termed as a motor.
Wrong again- according to your concept the drag cup motor won't work because
it doesn't have a coil or magnet. The fact that the "stator windings" are
set up to produce a rotating field and the aluminum disc is conductive, is
sufficient. I have made demo motors with beer cans or paper clips as
rotors- anything conductive works.
Is it a good design for a mechanical power source? No. but it does provide
It is mechanical. It does not perform ANY "sampling of data".
, You have a reading problem. The electronic meter multiplies and averages
sampled data. The mechanical meter multiplies and averages instantaneous
values of power achieving the same result.
Hell, you cannot even grasp how capacitance
upstream side can play into how such a meter reads. It is all one big
circuit, dude. So it doesn't matter where they are located, they play
into the operation of the reactive device, as well as that type of
meter's accuracy when reading such a live circuit.
Let's see, the circuit as a whole does affect the load voltage and current-
that is true. Changes in the load will be affect the circuit as a whole-
also true. However, the meter measures the voltage across the load and the
current through the load, whatever they may be. Accordingly the meter will
measure the power delivered to the load and at any given load impedance and
voltage, it cannot tell the difference between the situation of an ideal
source connected above it or a long line connected to a grid system with or
without capacitances. If a capacitor is connected on the load side of the
meter, it will change the current and voltage at the metering point and the
meter will measure accordingly- but as the capacitance only compensates for
inductive reactive VAR's , it will not correct the meter and the only effect
it will have on the meter will be a change in losses in the wiring on the
load side of the meter.
An industry may put capacitors downstream of the meter in order to improve
power factor- not because of any attempt to correct the meter but to reduce
the peak KVA demand which is not registered by a KWH meter but is reflected
in demand metering charges.
A utility putting a capacitor upstream of the metering point (and it is
always a parallel capacitor for very good reasons) doesn't correct the meter
downstream because it only modifies the upstream current (KCL applies). Do
you want some circuit analysis of this?
The meter sees the load in the circuit loop it is in. It is a circuit.
Upstream or downstream doesn't matter.
So, are you saying that, if the meter is moved to a different location in
the circuit, it reads the same thing? If not, then what are you implying?
Have you ever used a wattmeter in a circuit?
I don't know where you got your circuit or motor concepts but somewhere,
somehow, something is badly amiss in your understanding. There are many
references out there Shaum's outline on circuits is quite good for circuits
and a sophomore text such as Basic Electrical Engineering by Fitzgerald,
Higginbotham etc has been resurrected many times in different editions.
http://nptel.iitm.ac.in/courses/Web... Technology/pdf/L-44(GDR)(ET) ((EE)NPTEL).pdf
considers the interaction between the eddy currents and the flux of the
stator- in general, this interaction is actually better described in terms
of the interaction between the stator flux and the flux produced by the eddy
currents. In any case it is simply a form of shaded pole induction motor.
If you wish to give some tangible circuit models to present your points for
discussion- please feel free to do so. If you wish me to give some examples,
let me know.