Circuit breaker with integrated control features

Details Circuit breaker with integrated control features Circuit breaker with integrated control features

1996-08-08

1999-02-23

Medley, Sally C.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific quantity comparison means

361 85, 361 93, H02H 326

Patent

active

058750878

ABSTRACT:
A digitally controlled circuit breaker includes a conventional thermal circuit breaker (10) which is controlled by a solenoid (16) to override the thermal aspect thereof. The solenoid (16) is controlled by a digital processing section (20). The digital processing section (20) has a digital control module (22) with multiple profile tables associated therewith. The profile tables allow the digital control module (22) to compare a sensed current from a sensor (24) with a predetermined current value as a function of time and to generate the control signal for the solenoid (16) if the sensed current exceeds that in the profile. The profiles can optionally be downloaded to the module (22) through a serial communication port (36). The digital control module (22) is also operable to sense the voltage of the circuit breaker to determine zero crossing points and phase angle, which phase angle can be utilized to determine the type of load and, therefore, can alter the profile to be utilized. Display (30) provides a visual communication device for the control module (22). Various self-test features including generating a simulated current to the digital control module (22) and automatic recovery if the execution of the stored program in the digital control module (22) is disrupted.

REFERENCES:
patent: 4316187 (1982-02-01), Spencer
patent: 4685046 (1987-08-01), Sanders
patent: 4949214 (1990-08-01), Spencer
patent: 5038246 (1991-08-01), Durivage, III
patent: 5361184 (1994-11-01), El-Sharkawi et al.
patent: 5452223 (1995-09-01), Zuercher et al.

Affiliated with

Also associated with

Rating

Circuit breaker with integrated control features 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 breaker with integrated control features, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit breaker with integrated control features will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-312323