[TechAssist] Re: Need 30mfd 330vac run capacitor
- From: "Tri-County Tv" <tricountytv@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 24 Oct 2003 23:46:59 -0400
Greeting Everyone,
1) This cap may be a start cap as I assumed
it was a run cap because of the low mfd rating. Perhaps in this motor, which
operates a lift chair, so it runs for very short durations, 30-60 seconds at
a time. Perhaps this cap is a start cap. 2) Where my shop is located, we
have very few companys that carry these types of caps. I will order a new
one from Grainger 3) Even though this subject is about caps and motors, as
you can see besides reel to reels that have motors with caps so do many
turntables and I though the subject matter would be ok. When I opened this
cap it has a tar like substance in it. I was not sure if an AC capacitor was
the same as a NON-Polar, if it was why don't they just call it a non-polar.
I tried 2 80uF 350 volt caps in series (neg tied together) to test and see
if the motor would run and it did, I also noted that the caps did not get
hot or even warm, everyone is saying they will over heat, but they did not.
I do not under stand why if the caps are being reversed biased, they should
get warm. Sorry it took so long to get back, I've been on service calls all
day. Thanks
Tom Berger
Tri-County TV
Robbinsville
North Carolina 28771
Ph--828-479-6043
Fax-828-479-4868
(tricountytv@xxxxxxxxxxxxx)
----- Original Message -----
From: "George" <grndmstrg@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, October 24, 2003 4:02 PM
Subject: [TechAssist] Re: Need 30mfd 330vac run capacitor
> Most likely an oil filled tub capacitor.
>
> George
> Afana Electronics
> Moreno Valley, CA
>
> ----- Original Message -----
> From: "J Silverman" <greentron@xxxxxxxxxxxxxxxx>
> To: <Techassist@xxxxxxxxxxxxx>
> Sent: Friday, October 24, 2003 12:13 PM
> Subject: [TechAssist] Re: Need 30mfd 330vac run capacitor
>
>
> > First, electrolytics cannot be used for a run capacitor or they will
> > overheat and vent or explode. Electrolytics are only used for
intermittant
> > duty start
> > capacitors. The run capacitors are film or paper capacitors. Second,
> > electrolytics exhibit semiconductor behavior when reverse biased so
> hooking
> > two in series to make a none-polar causes unexpected strange behavior.
> > Jerry Silverman
> > Greentron Inc
> > 4 Newland Ave
> > Greenville SC 29609
> > 864 232 3889
> > Fax 271 2080
> > mailto:greentron@xxxxxxx
> > ----- Original Message -----
> > From: "Tri-County Tv" <tricountytv@xxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Friday, October 24, 2003 11:29 AM
> > Subject: [TechAssist] Need 30mfd 330vac run capacitor
> >
> >
> > > Greeting,
> > > I have a question, is a capacitor rated at 30mfd 330
volts
> > ac, this is just a non-polar cap right? Could I use two caps in series
to
> > make up this cap? Like two 60uf 450 volt dc capacitors in series. It is
a
> > run capacitor for a motor in a lift chair. The motor runs on 110volts
ac.
> > > Thomas Berger
> > > Electronic Home Systems
> > > P.O.Box 309
> > > Robbinsville N.C. 28771
> > > Ph- 800-393-3997
> > > Fax 828-479-4868
> > > E-H-S@xxxxxxxxxxxxx
> > >
> >
>
****************************************************************************
> > *
> > > Classifieds! Buy or Sell!
> > > http://sell.tech-assist.org
> > > The Tech Address Book:
> > > http://www.tech-assist.org/secure/tip/contact.htm
> > > Add a Repair Tip Here, or Change/Remove your Email Address:
> > > http://www.tech-assist.org/secure/tip/main.htm
> > > Lost Password:
> > > http://www.tech-assist.org and select "Lost your Login Info?".
> > > Email Archives:
> > > //www.freelists.org/archives/techassist/
> >
> >
> >
>
****************************************************************************
> *
> > Classifieds! Buy or Sell!
> > http://sell.tech-assist.org
> > The Tech Address Book:
> > http://www.tech-assist.org/secure/tip/contact.htm
> > Add a Repair Tip Here, or Change/Remove your Email Address:
> > http://www.tech-assist.org/secure/tip/main.htm
> > Lost Password:
> > http://www.tech-assist.org and select "Lost your Login Info?".
> > Email Archives:
> > //www.freelists.org/archives/techassist/
> >
>
>
>
****************************************************************************
*
> Classifieds! Buy or Sell!
> http://sell.tech-assist.org
> The Tech Address Book:
> http://www.tech-assist.org/secure/tip/contact.htm
> Add a Repair Tip Here, or Change/Remove your Email Address:
> http://www.tech-assist.org/secure/tip/main.htm
> Lost Password:
> http://www.tech-assist.org and select "Lost your Login Info?".
> Email Archives:
> //www.freelists.org/archives/techassist/
>
*****************************************************************************
Classifieds! Buy or Sell!
http://sell.tech-assist.org
The Tech Address Book:
http://www.tech-assist.org/secure/tip/contact.htm
Add a Repair Tip Here, or Change/Remove your Email Address:
http://www.tech-assist.org/secure/tip/main.htm
Lost Password:
http://www.tech-assist.org and select "Lost your Login Info?".
Email Archives:
//www.freelists.org/archives/techassist/
Other related posts:
