Emerson 7000 SERIES ATB Bedienungsanleitung

381333–133 A50 Hanover Road, Florham Park, New Jersey 07932–1591 USA1 800 937–2726 (ASCO), for service call 1 800 800–2726 (ASCO) www.asco.comASCO POW

TESTING & SERVICE(continued)2-- 2TROUBLE-SHOOTINGNote any optional accessories that may be furnished onthe ATB and review their operation. Refer t

SECTION 3 BYPASSING & ISOLATING3-- 1BYPASSINGThis procedure explains how to Bypass the closedAutomatic Transfer Switch contacts. Bypassing is re-q

BYPASSING & ISOLATING(continued)3-- 2TRANSFER SWITCH REMOVALThis procedure explains how to remove the TransferSwitch for inspection and maintenanc

BYPASSING & ISOLATING(continued)3-- 3RETURN TO SERVICEThis procedure explains how to return the AutomaticTransfer Switch to service after inspecti

INDEXPrinted in U.S.A.Aauxiliary circuits, 1–2Bbus connections, 1–2bypassing the ATS, 3–1Ccatalog number, covercleaning, 2–1connectionspower, 1–2contr

SECTION 1 INSTALLATION1-- 1The ASCO 7000 Series Automatic Transfer & Bypa ss–Isolation Switch (ATB) consists of an upper bypass–isola-tion switch,

INSTALLATION (continued)1-- 2Connecting Power ConductorsA Wiring Diagram is furnished with the ATB. All wiringmust be made in accordance with the loca

INSTALLATION (continued)1-- 3Install the Transfer SwitchAfter the enclosure is installed and power cables or buscon nec ted to the Bypass Switch , the

INSTALLATION (continued)1-- 4Inspection 1Do not force the Isolation Handle. Be sure thatthe sensing lead isolation contacts do not hit themale stabs h

INSTALLATION (continued)1-- 5Tra nsf e r Swit chConnectedToNormalTra nsf e r Swit chConnectedToEmergencyNormalSourceAcceptedEmergencySourceAcceptedTra

INSTALLATION (continued)1-- 62 – Manual Operation TestThis procedure will check the manual operati on of theBypass Swi tch, Isolation Switch, and Tran

INSTALLATION (continued)1-- 7Tra nsf e r Swit chConnectedToNormalTra nsf e r Swit chConnectedToEmergencyNormalSourceAcceptedEmergencySourceAcceptedTra

SECTION 2 TESTING & SERVICE2-- 1TRANSFER TESTTest the Automatic Transf er Switch portion of the 7000Series ATB at least once a month. This procedu