[TowerTalk] Wiring Sky Needle tower for 220 VAC
wa6zty at yahoo.com
Tue Nov 5 23:11:14 EST 2013
I view a stalled motor as being similar to a transformer with the secondary shorted. The current will be limited only by the winding resistances and the leakage reactances. Surprisingly, the PF is only slightly lower at start-up.
Use caution when compensating PF of a motor that might sometimes look like a generator (tower lowering). In those applications, the compensating capacitor usually resides on the line side of the switch.
> From: Wilson <infomet at embarqmail.com>
>To: towertalk <towertalk at contesting.com>
>Subject: [TowerTalk] Wiring Sky Needle tower for 220 VAC
>I’m not sure of this, but the motor must be a seriously lagging current load.
>I wonder if some power factor correcting caps would get the sluggish motor going.
>With the lagging PF, you get the most drop when the supply voltage is already going pretty low...
>With correction, the caps would handle some of the load.
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