Le 26/12/2024 à 23:49, Bell, Dave via
groups.io a écrit :
I plotted
the currents in L1 and L2: Essentially identical , but + and
– 6+amps?!?
Impedance of a 100mH inductor at 50Hz=31 ohms
220V into 31 ohms= about 7 amps
Is that some
kind of circulating current in coupled inductors?
Only mA in
L6, the separate 18V winding
Use
the cursor instead of MEAS statements, which are so easily
wrongly-written.
On 2024-12-26 22:32, Bell, Dave via
groups.io wrote:
.TRAN for 1010ms made no difference; same
measurements at 1005m as at 5m
Two things I notice instantly:
Primary voltage should be 311V. Voltages in SPICE are peak.
You don't run a 50Hz transient for only 10ms.
Le 26/12/2024 à 21:40, Bell, Dave via
groups.io a écrit :
Please see my recent upload,
Autotransformer.zip
I need some tutorials regarding
autotransformer modelling!
I was intrigued by Hassan's AC
Stabilizer and tried to model TR1
The model differed from my expectations
in several ways.
1: Why do the
tap-to-tap voltages differ, with equal inductances?
2: Why is the
separate 18V winding so different?
2a: Why is it
more different when I separate the Kxxx directives?
3: Why do the
outputs throw infinities with small or megohm loads, but
not when 1G or open??
Dave
--
OOO - Own Opinions Only
Best Wishes
John Woodgate
Keep trying
