[TowerTalk] Wiring Sky Needle tower for 220 VAC

[Mike Fahmie]

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.

-Mike-


>________________________________
> From: Wilson <infomet at embarqmail.com>
>To: towertalk <towertalk at contesting.com> 
>Sent: 
>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.
>WL
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