| 摘要 |
A circuit interrupter includes a circuit arrangement [Fig. 12 (79, 82)] for sampling a conditioned current value and determining operating characteristics related to the current flow through an electrical circuit. Also included is a circuit arrangement for comparing [Fig. 16 (F200)] the operating characteristics to preselectable tripping parameters and circuit arrangement for initiating a trip condition [Fig. 16 (F400)] when an operating characteristic exceeds a corresponding tripping parameter. Additionally, a logic arrangement [Fig. 16 (F300)] for establishing a ground fault current limit using a minimum number of components [Fig. 9 (63c, 148)] to achieve a wide range of possible settings, is also included. |
