Short circuit and ground fault protection for an electrical syst

Details Short circuit and ground fault protection for an electrical syst Short circuit and ground fault protection for an electrical syst

1994-04-11

1996-12-24

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

361 48, 361 57, H02H 332

Patent

active

055878644

ABSTRACT:
A three-phase electrical system includes an interrupt controller. The interrupt controller protects against inadvertent current flow between a phase conductor and ground and between phase conductors. The interrupt controller measures the voltage across a series connection of current transformers disposed about various phase conductors. If an inadvertent current path exists between one of the phase conductors and ground or between two of the phase conductors, the interrupt controller interrupts the current flow in the phase conductors. Additionally, a single-phase electrical system with a hot conductor and a neutral conductor includes an interrupt controller. The interrupt controller protects against inadvertent current flow between the hat conductor and ground and between the hot conductor and the neutral conductor. The interrupt controller measures the voltage across a series connection of current transformers disposed about the hot and neutral conductors. If an inadvertent current path exists between the hot conductors and ground or between the hot conductor and the neutral conductor, the interrupt controller interrupts the current flow in the hot and neutral conductors.

REFERENCES:
patent: 3617808 (1971-11-01), Yoder
patent: 3786311 (1974-01-01), Hobson, Jr. et al.
patent: 3851216 (1974-11-01), Clarke et al.
patent: 4121269 (1978-10-01), Hobson, Jr.
patent: 4540939 (1985-09-01), Osborne
patent: 4683513 (1987-07-01), Miller
patent: 4685022 (1987-08-01), Nichols, III et al.
patent: 5270897 (1993-12-01), McDonald et al.
patent: 5426554 (1995-06-01), Nocentino, Jr. et al.

Affiliated with

Also associated with

Rating

Short circuit and ground fault protection for an electrical syst does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Short circuit and ground fault protection for an electrical syst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Short circuit and ground fault protection for an electrical syst will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1182692