General Electric Technology Gmbh

Thomas Tometich

Victor F Hermosillo

Jérôme Laurent

Andrew Chovanec

Cyril Gregoire

Ludovic Darles

Chase Colton Peltier

Keith McLaughlin

Alaa Alameddine

Ramaprasad E Lakshminarayana

Cyril GRÉGOIRE

Jérome Laurent

Chase Peltier

Ramaprasad Lakshminarayana

A contact arrangement for a Pre-Insertion Resistor (PIR) wherein a control rod is arranged to move a movable contact, against the force of a biasing member, into temporary connection with a PIR. The control rod comprises a tulip with a plurality of resilient fingers and having a first diameter where it is able to mechanically couple to a latching ring on the movable contact, and a second diameter where the tulip is deformed with the fingers deflected inwards, once the resistance to movement exceeds a predetermined value, wherein the latching ring is able to pass over the tulip to decouple the movable contact from the control rod. The contact arrangement is particularly suited for a PIR arranged for connection in parallel to the interrupter of a gas-insulated switchgear (GIS) circuit breaker.

Contact arrangement for pre-insertion resistor

An internal tulip sleeve for the female arcing contact of a high voltage circuit breaker. According to the invention, this sleeve comprises a body of non-magnetic steel or of copper-tungsten alloy, this body comprising an internal face covered with copper.

Internal tulip sleeve of the female arcing contact of a high voltage electric circuit breaker

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Charleroi, PA, United States of America

Thomas Tometich