Electric circuit breaker
AssigneeEnel Distributions S.p.A.
InventorFabio Veroni
Life of this patent
Estimating the term…
Abstract
An electric circuit breaker (1) comprises a switch (11) to be arranged in said electrical circuit (3); means (13) for causing said switch (11) to break said electrical circuit (3) in response to a tripping signal (14); means (17) for receiving (IF) and storing (MEM) a programmable current threshold command (CC); means (15) for detecting a current level (CL) in said electrical circuit (3); and processing means (16) for generating said tripping signal (14) depending on said stored programmable current threshold command (CC) and said detected current level (CL).
Claims26
An electric circuit breaker (1) for protecting an electrical circuit (3) against excessive current loads, comprising
- a switch (11) to be arranged in said electrical circuit (3);
- first means (13) for causing said switch (1 1) to break said electrical circuit (3) in response to a tripping signal (14);
- means (17) for receiving (IF) and storing (MEM) a programmable current threshold command (CC);
- means (15) for detecting a current level (CL) in said electrical circuit (3);
- and
- processing means (16) for generating said tripping signal (14) depending on said stored programmable current threshold command (CC) and said detected current level (CL);
- characterized by
- second means (12) for causing said switch (11) to break said electrical circuit (3) if a current flowing in said electrical circuit exceeds a predetermined rated current (IR ) for more than a specified duration (31, 32).
Dependencies are inferred from the claim text.