Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO1991007799) SYSTEM FOR PROTECTING A DC POWER DISTRIBUTION BUS DURING HOT SERVICING
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/007799 International Application No.: PCT/US1990/006862
Publication Date: 30.05.1991 International Filing Date: 21.11.1990
Chapter 2 Demand Filed: 19.06.1991
IPC:
H02H 9/00 (2006.01) ,H02H 9/02 (2006.01)
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
H
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
9
Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
H
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
9
Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
02
responsive to excess current
Applicants:
TANDEM COMPUTERS INCORPORATED [US/US]; 19333 Vallco Parkway Cupertino, CA 95014, US
Inventors:
TIGHE, Donald, J.; US
NEILSON, Joseph, S.; US
Agent:
KRUEGER, Charles, E.; Townsend and Townsend One Market Plaza 2000 Steuart Tower San Francisco, CA 94105, US
Priority Data:
440,53822.11.1989US
Title (EN) SYSTEM FOR PROTECTING A DC POWER DISTRIBUTION BUS DURING HOT SERVICING
(FR) SYSTEME DE PROTECTION D'UN BUS DISTRIBUTEUR D'ALIMENTATION A COURANT CONTINU PENDANT LA MAINTENANCE A CHAUD
Abstract:
(EN) A system for preventing voltage drops when a load circuit (12) is connected and preventing arcing when a load is disconnected from an energized bus (14) includes a current limit device (26) and low impedance shunt (28) that bypasses the current limit device when activated. The system activates the low impedance shunt only after a load capacitance is charged when the load is connected and deactivates the low impedance shunt prior to disconnecting the load.
(FR) Un système de prévention de chutes de tension lorsqu'un circuit de charge (12) est connecté, et de prévention d'amorçage d'arc lorsqu'une charge est déconnectée d'un bus sous tension (14), comprend un dispositif (26) limiteur de courant, ainsi qu'une dérivation (28) de faible impédance, contournant le dispositif limiteur de courant lorsqu'elle est activée. Le système active la dérivation de faible impédance uniquement après le chargement d'une capacité de charge, lorsque la charge est connectée, et désactive la dérivation de faible impédance avant déconnexion de la charge.
Designated States: AU, CA, JP
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:
EP0571373CA2068890AU1991071788