[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
RE: Contactor question, Arc Suppressioni
- To: tesla@xxxxxxxxxx
- Subject: RE: Contactor question, Arc Suppressioni
- From: "Tesla list" <tesla@xxxxxxxxxx>
- Date: Tue, 16 Aug 2005 12:21:55 -0600
- Delivered-to: testla@pupman.com
- Delivered-to: tesla@pupman.com
- Old-return-path: <vardin@twfpowerelectronics.com>
- Resent-date: Tue, 16 Aug 2005 12:22:39 -0600 (MDT)
- Resent-from: tesla@xxxxxxxxxx
- Resent-message-id: <zvG4BD.A.7JF.m7iADB@poodle>
- Resent-sender: tesla-request@xxxxxxxxxx
Original poster: "Lau, Gary" <Gary.Lau@xxxxxx>
100 uF and 0.1 Ohm across the contacts? It's hardly off then, when the
contacts are open. At 120VAC, 3.2A RMS will flow.
Gary Lau
MA, USA
> Original poster: "Barton B. Anderson" <bartb@xxxxxxxxxxxxxxxx>
> Besides changing the
> circuit to prevent a short should the contact weld closed, I also
> used a resistor and capacitor across the contacts "at the relay"
> which was the last to turn off (via new time delay just so I could
> direct the arc potential to a particular set of contacts). Through
> trial and error, I eventually stopped the relay arcing (I think I
> ended up at 0.1 ohms and 100uF) for this particular relay.