OVERCURRENT PROTECTION DEVICE

An overcurrent protection device is provided for one or more phases of a circuit that generates a control signal dependent upon an adjustable trip level setting after a fault has occurred. The device includes a blocking level detector that blocks the generation of the control signal if the current i...

Full description

Saved in:
Bibliographic Details
Main Authors ZULASKI, JOHN A, MUGALIAN, BRIAN P
Format Patent
LanguageEnglish
French
Published 26.12.2000
Edition5
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
Online AccessGet full text

Cover

More Information
Summary:An overcurrent protection device is provided for one or more phases of a circuit that generates a control signal dependent upon an adjustable trip level setting after a fault has occurred. The device includes a blocking level detector that blocks the generation of the control signal if the current in any of the phases exceeds either a first predetermined blocking level or the adjustable trip level setting. In a preferred arrangement, before control-signal generation, the device also requires that the current in at least one phase is below a predetermined load level.
Bibliography:Application Number: CA19902010168