초록 ▼

Apparatus is disclosed for verifying the proper operation of a drive circuit (43) which controls the application of power to an electromechanical device, e.g., a manually reset circuit breaker (36). The apparatus includes means (60) for applying a control signal to the drive circuit to cause it to b

Apparatus is disclosed for verifying the proper operation of a drive circuit (43) which controls the application of power to an electromechanical device, e.g., a manually reset circuit breaker (36). The apparatus includes means (60) for applying a control signal to the drive circuit to cause it to briefly apply power to the electromechanical device, where the interval of time over which power is applied is too brief to cause actuation of the device. Means (64) are also provided for sensing the power applied to the device to verify that the drive circuit has properly responded to the control signal.

대표청구항 ▼

Apparatus for verifying the proper operation of a drive circuit which controls the application of power to an electromechanical device comprising: means for applying a control signal to said drive circuit to cause said drive circuit to apply power to said electromechanical device for an interval of

Apparatus for verifying the proper operation of a drive circuit which controls the application of power to an electromechanical device comprising: means for applying a control signal to said drive circuit to cause said drive circuit to apply power to said electromechanical device for an interval of time too brief to cause actuation of said device; said drive circuit including a controlled switching element connected in series with said electromechanical device across a power source and means for controlling the conductance state of said controlled switching element; and means for sensing the power applied across said device to verify that power has been properly applied thereto by said drive circuit in response to said control signal; said apparatus being adapted for use with a drive circuit wherein said means for controlling the conductance state of said controlled switching element includes means for rendering said element conductive in response to said control signal, said element remaining conductive thereafter until the level of current passing through it drops below a limit, said apparatus further comprising reset means for causing said current to drop below said limit in order to reset said conductive element after said controlled switching element has been properly rendered conductive in response to said control signal.