Protective device for electric distribution system
AssigneeKabushiki Kaisha Toshiba
InventorMasakazu Takeshi
Life of this patent
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Abstract
A protective device for an electric distribution system capable of providing an easy inspection and confirmation of the setting for the operation characteristics of the device. The device includes an input unit for entering a setting of an operation characteristic of the protective device; a calculation unit for determining the operation characteristic of the protective device according to the setting entered by the input unit; and a display unit for displaying the operation characteristic determined by the calculation unit.
Claims8
A protective device for an electric distribution system in which a circuit breaker is provided between a main distribution bus line and a motor device connected to the main distribution bus line, the protective device comprising:
- input means for entering a setting of an operation characteristic of the protective device according to an operation characteristic of the motor device;
- means for determining the operation characteristic of the protective device according to the setting entered by the input means;
- and
- display means for displaying the operation characteristic determined by the determining means in a form of an I-T curve graph along with the operation characteristic of the motor device, in order to facilitate a visual inspection of an appropriateness of the setting entered at the input means.
Dependencies are inferred from the claim text.