Group protection module for a switchgear arrangement and...

Details Group protection module for a switchgear arrangement and... Group protection module for a switchgear arrangement and...

2011-07-05

2011-07-05

Jackson, Stephen W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Feeder protection in distribution networks

C361S729000, C361S735000, C438S188000, C200S051020, C200S051030, C200S051040, C200S051050, C200S051100

Reexamination Certificate

active

07974058

ABSTRACT:
A group protection module for a switchgear arrangement is provided in order to protect a group of load feeders, each having a contactor for connecting or disconnecting a respective load. The group protection module has a circuit breaker for providing short-circuit protection, said circuit breaker being connected to a supply-side input and to a load-side output of the group protection module for connection to a power supply system and for connecting the group of load feeders. The group protection module has a safety evaluation unit via which the circuit breaker can be tripped if a status signal detectable by the respective load feeders indicates that one of the contactors of the load feeders can no longer be de-energized. The group protection module is implemented as a constructional unit.

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Heinz Zipperer; “Mehr Sicherheit für Mensch and Maschine—Safety Integrated”; Elektrotechnische Zeitschrift—ETZ; Sep. 1999; pp. 34-35, 37; vol. 120, No. 17; XP000924177; Verlag GmbH, Berlin, Germany.

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