Dspark,

In a way, this arrangement resembles a "Buck" transformer, just that it's not connected as an Autotransformer with a tap out of the coil between the input lines [tapped coil for voltage reduction]. If this is unclear, the opposite would be an Autotransformer with an extended coil's length to increase the voltage - making it equal to the "Boost" transformer.

Here we have made connections so that they fall out of polarity with the current flow. Simply we have reduced the voltage and choked the currents because they are not in step with the core's flux polarity. This makes the effects series subtractive for the voltage, plus restricts the currents flowing in the long run [similar to the typical reactor].

Best thing here is to view only the single line schematic so the connections to polarities thingee is unmasked.


Steve,

You're right about the results of the primary coil opening.
That would make the circuit have no polarity to work against, plus minimal core effects - making the secondary coil act only as a filter section, instead of a current choke and part of a voltage reduction circuit.

Scott SET

P.S. had to edit after posting due to crazy looking typo's!! [Linked Image]
SET.

[This message has been edited by Scott35 (edited 06-25-2001).]

Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!