Overcurrent trip device

Details Overcurrent trip device Overcurrent trip device

1997-03-25

1998-10-20

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

361 98, 361 99, 361102, 361187, H02H 300

Patent

active

058256024

ABSTRACT:
An overcurrent trip device includes a capacitor 13 that stores power for driving a trip electromagnet 7, and a charging current generating means 18 that starts charging the capacitor 13 upon detection of an overcurrent and that completes the charging of the capacitor 13 until a trip control circuit 5 outputs a trip signal. The operation of the trip electromagnet 7, which is driven with the charges of the capacitor 13 by causing a thyristor 12 to be turned on by the trip signal, is continued until the charges of the capacitor 13 are lost, and even after the power supply from a rectifying circuit 4 is stopped due to the opening of a circuit breaker 8, it is made impossible to reset and re-close the circuit breaker 8 for a predetermined time.

REFERENCES:
patent: 4442471 (1984-04-01), Trayer
patent: 4562506 (1985-12-01), Moran
patent: 4567540 (1986-01-01), Ruta
patent: 5400203 (1995-03-01), Tice
patent: 5508875 (1996-04-01), Innes
patent: 5579194 (1996-11-01), Mackenzie et al.
patent: 5668692 (1997-09-01), Rodgers et al.

Affiliated with

Also associated with

Rating

Overcurrent trip device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Overcurrent trip device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Overcurrent trip device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-251614