The purpose of the Capacitor is NOT a start capacitor. It is a phase shift
capacitor to get as close to 90 degrees phase shift between the winding
phases in order to make the motor run as a two phase a.c. servomotor. This
allows high starting torque and good running torque as well as constant
speed. There is significant leeway in the exact capacitor value, but I
would not recommend putting two capacitors in parallel.
The best place for the capacitor is close to the motor. I usually just
mount a plastic box a couple of feet below the rotator and use a capacitor
with lugs with the wires running up through a hole in the bottom of the box
with a drip loop. I have never had to replace a capacitor, but it is easy
to do this way.
[mailto:firstname.lastname@example.org]On Behalf Of David Jordan
Sent: Wednesday, August 14, 2002 1:46 PM
To: Mike Gilmer, N2MG
Cc: email@example.com; firstname.lastname@example.org
Subject: Re: [Towertalk] T2X Start cap at tower base?
Why are folks disconnecting the cap inside the control head? twice the
capacitance isn't going to hurt
anything as best I can tell.