[BC] Powering the big rigs

[Cowboy]

On Wednesday 20 June 2012 11:47:46 am Art Reed wrote:
> The one thing I saw that I didn't fully understand was a device marked "induction regulator", a motorized coil arrangement that I believe was used to balance voltage, current, and/or phase between the three phases of 480v driving the transmitter. I don't quite understand what its function was, or what modern-day technology takes its place.

 Had those at WSLR back when. Two of them for three phases, so
 two phases chased the one without the regulator.

 It's essentially a motorized auto-transformer to buck/boost that phase.
 They were out of service by the time I got there, or my memory ain't
 what it used to be, but I believe the drive motor was bridged across
 phases such that if phase A was low, it ran one way, and if it was high
 it ran the other until the voltage matched.
 Details escape me, except that it was a simple auto-transformer.

-- 
Cowboy