H - Electricity – 01 – H
Patent
H - Electricity
01
H
H01H 9/30 (2006.01) H01H 3/28 (2006.01) H01H 33/04 (2006.01) H01H 47/00 (2006.01) H01H 71/24 (2006.01) H01H 73/18 (2006.01) H02K 33/00 (2006.01) H03K 17/567 (2006.01)
Patent
CA 2607534
An arc suppression circuit in a protection relay having trip contacts is used to turn off a battery-powered solenoid and trip an AC power circuit breaker. The arc suppression circuit uses a switch-control circuit to control the turning off of a semi--conductor switch so that the semi-conductor switch provides a current path around the trip contacts, and is carrying all, or substantially all, of the load current, before the trip contacts are opened. When the trip contacts begin to open, the switch-control circuit holds the semi-conductor switch on for a sufficient time to prevent an arc from becoming established before turning the semi-conductor switch off. In a second embodiment, the arc suppression circuit provides a second switch-control circuit. This second switch-control circuit is configured to accept control signals from a microprocessor within a protection relay. The microprocessor turns the semi- conductor switch on before the contacts begin to open, thereby providing a current path around the contacts before the contacts begin to open. The microprocessor turns the semi-conductor switch off after a time sufficient to prevent an arc from becoming established.
Bayoumi Deia Salah-Eldin
Giacobbe Mark C.
Maharsi Mohamed
Voda Douglas A.
Wood Douglas A.
Abb Technology Ag
Marks & Clerk
LandOfFree
Arc suppression circuit using a semi-conductor switch does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Arc suppression circuit using a semi-conductor switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arc suppression circuit using a semi-conductor switch will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1730433