GE ProTrip User Manual

GE ProTrip User Manual Manual pdf 2 page image

Ground-Fault ProtectionGround-fault protection with ProTrip Trip Units isprovided in the Rating Plug. Rating Plugs are equippedwith defeatable ground fault protection.Ground-fault protection is activated when a Rating Plug isinstalled in the Trip Unit. The pickup and delay settingsavailable with the switches on the Rating Plug aredescribed in DEH–40034, ProTrip™ Trip Units User’s Guide.WARNING: Rating Plugs equipped with ground faultmust be replaced only with other ground-fault-equippedRating Plugs. Failure to do so could result in personalinjury or death, as well as damage to equipment.AVERTISSEMENT: Les calibreurs munis d’un détecteurde défaut de mise à la terre ne doivent être remplacésque par des calibreurs munis d’un détecteur de défaut demise à la terre. La non application de cette directive peutentraîner des blessures ou même provoquer la mort ainsiqu’endommager l’équipment.InstallationBefore installing a Rating Plug into a ProTrip Trip Unit,inspect the plug for damage, then follow these steps:1. Verify that the Rating Plug catalog number matchesthe desired continuous current rating (X) and thesensor rating (S) on the breaker frame.2. Hold the Rating Plug between the thumb andforefinger, then push it into the Trip Unit. Properengagement is verified by a click.CAUTION: Do not attempt to push the Rating Plug intothe Trip Unit if there is resistance. This may indicate thewrong Rating Plug for the current sensor rating. Stopimmediately and verify that the breaker sensor rating (S)and the Rating Plug nameplate “S=” value are the same.ATTENTION: Il ne faut pas essayer de pousser le calibreurdans le déclencheur si il y a une résistance. Cela peutindiquer que c’est le mauvais calibreur pour ce typed’appareil. Arrêtez immédiatement et vérifiez que lavaleur assignée du disjoncteur “S” corresponde à celle dela plaque signalétique du disjoncteur “S=.”RemovalAn installed Rating Plug is seated firmly in the Trip Unit.As shown in Figure 1, there are tabs at the sides of theRating Plug for removal. A Rating Plug Removal Tool,catalog number TRTOOL, also known as an integratedcircuit (DIP) extractor, is required to remove the RatingPlug. Grasp the tabs of the Rating Plug with the tool, asillustrated in Figure 2. Be careful to hold the tabs and notthe front cover, as the Rating Plug could be damagedotherwise. Gently pry the Rating Plug out by pulling awayfrom the Trip Unit. A gentle left–right wriggling motionassists the removal. Insure that the tabs are held securelyuntil the Rating Plug is completely removed.NOTE: Protection to the breaker is maintained at only25% of the current sensor rating when the Rating Plug isremoved. If the breaker is carrying more than 25% of thecurrent sensor rating, the breaker will trip after the long-time delay setting.NOTE: La protection du disjoncteur n’est maintenuequ’a 25% de la valeur du transformateur de courantlorsque le calibreur est retiré. Si le disjoncteur est chargéà plus de 25% de la valeur du transformateur de courant,le disjoncteur se déclenchera après une périodeprédéterminée par une mnuterie.Figure 2. Rating Plug removal.g GE Industrial SystemsGeneral Electric Company41 Woodford Ave., Plainville, CT 06062DEH40054 R01 1198 © 1998 General Electric CompanyThese instructions do not cover all details or variations in equipment nor do they provide for every possible contingency thatmay be met in connection with installation, operation, or maintenance. Should further information be desired or shouldparticular problems arise that are not covered sufficiently for the purchaser’s purposes, the matter should be referred to theGE Company.

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