Circuit for protection against fault currents

Details Circuit for protection against fault currents Circuit for protection against fault currents

1988-06-16

1990-08-28

Jennings, Derek S.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

361 87, H02H 308

Patent

active

049530542

ABSTRACT:
A circuit arrangement for protection against fault currents in power supplies, having an energy storage means, such as frequency converters for the operation of three-phase motors. The arrangement comprises two identical detector windings in the supply lines leading to the power supply so that a differential current detector winding connected with such detector windings causes a circuit breaker device to be actuated when a given value is exceeded. This circuit breaker device interrupts all the supply lines between the power supply and a load connected therewith by means of switching paths. This ensures that despite the energy stored in the power supply there is rapid and reliable switching off of the load should a fault current occur.

REFERENCES:
patent: 4159499 (1979-06-01), Bereskin
patent: 4437133 (1984-03-01), Rueckert
patent: 4542432 (1985-06-01), Nichols, III et al.

Affiliated with

Also associated with

Rating

Circuit for protection against fault currents does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit for protection against fault currents, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit for protection against fault currents will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1593837