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1. (WO1992009899) DISPLAY FOR A CIRCUIT BREAKER TRIP UNIT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/009899 International Application No.: PCT/US1991/009000
Publication Date: 11.06.1992 International Filing Date: 27.11.1991
IPC:
H02H 1/06 (2006.01) ,H02H 3/00 (2006.01) ,H02H 3/04 (2006.01)
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
H
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
1
Details of emergency protective circuit arrangements
06
Arrangements for supplying operative power
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
H
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3
Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
H
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3
Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
02
Details
04
with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
Applicants:
SQUARE D COMPANY [US/US]; 1415 South Roselle Road Palatine, IL 60067, US
Inventors:
HAUN, Andy, Allen; US
TESSMER, Earl, John; US
Agent:
GOLDEN, Larry, I.; Square D Company 1415 South Roselle Road Palatine, IL 60067, US
Priority Data:
620,51030.11.1990US
Title (EN) DISPLAY FOR A CIRCUIT BREAKER TRIP UNIT
(FR) ECRAN DE VISUALISATION POUR APPAREIL DECLENCHEUR DE DISJONCTEUR
Abstract:
(EN) A portable communication device communicates with a circuit breaker trip unit in a cost-efficient, power-effective manner. The portable communication device includes a keypad (10, 12), a display (78), an interface circuit (16) which couples data sent from the trip unit with the portable communication device, a microcomputer (13) which responds to the keypad (10, 12) and to the data sent from the trip unit for controlling the display (78), a local power source which provides power to the portable communication device, and a power switch which is responsive to the microcomputer for disabling the local power source during periods when data is not being received from the trip unit. The microcomputer may be arranged to directly control the power switch. In this manner the microcomputer can command the power switch to disable the local power when the absence of data from the trip unit indicates that power to the portable communication device is not needed.
(FR) Dispositif portable de communication en liaison avec un appareil déclencheur de disjoncteur d'un bon rapport coût-efficacité et de faible consommation. Le dispositif de communication portable comporte un clavier, un écran, un circuit d'interface qui couple les données envoyées depuis l'appareil déclencheur vers le dispositif de communication portable, un micro-ordinateur réagissant aux données du clavier et aux données envoyées par l'appareil déclencheur de façon à commander l'écran, une source d'alimentation locale qui alimente ledit dispositif de communication portable, et un commutateur d'alimentation obéissant aux instructions du micro-ordinateur permettant de déconnecter la source d'alimentation locale durant des périodes où les données ne sont pas envoyées par l'appareil déclencheur. On peut disposer le micro-ordinateur de façon à commander directement le commutateur d'alimentation. De cette façon, le micro-ordinateur est en mesure de commander le commutateur d'alimentation afin de déconnecter l'alimentation locale lorsque l'absence de données de l'appareil déclencheur indique que l'alimentation du dispositif de communication portable n'est pas nécessaire.
Designated States: AU, CA
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
MXPA/a/1991/002320EP0513319CA2074264AU1991091021