| 摘要 |
An overload circuit interrupter (OLCI), and a circuit breaker with the same, which diminish erroneous operation from being caused by a dimmer. The OLCI detects overload in an AC electrical wiring system and produces an overload trip signal that shuts the AC source off. The OLCI includes a current transformer that produces the overload voltage in accordance with current variations in phase and neutral conductors. The OLCI also includes a rectifier for rectifying of the overload voltage, a level controller for limiting the rectified overload voltage, an integrator for charging the limited overload voltage and for providing overload indicative signal, and a comparator. The comparator compares the overload indicative signal with a reference overload voltage and produces the overload trip signal that shuts the AC source off. The circuit breaker may further include an arc fault circuit interrupter (AFCI) and a ground fault circuit interrupter (GFCI). |
