UPS SEC-J ATT J.1b MBP.doc
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- Uninterruptible Power Supply (UPS) equipment, Integrated Logistics and Technical Services
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- DTFAAC-17-R-00013
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UPS SEC-J ATT J.1b MBP (doc)
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PART III SECTION J ATTACHMENT J.1b
MANUAL MAINTENANCE BYPASS CONFIGURATION
PART III SECTION J ATTACHMENT J.1b
MANUAL MAINTENANCE BYPASS SWITCH (MMBPS)
WIRING DIAGRAM FOR WALL MOUNT OR FREE STANDING CABINET
MANUAL MAINTENANCE BYPASS (MBP) WALL MOUNT PANEL OR FREE STANDING CABINET
MBP Sequence of Operation for Make-before-break.
Place UPS unit in Static Bypass mode of operation. UPS output voltage is now in phase with essential panel. UPS interlock with MBP panel signals Kirk Key solenoid release.
Remove Kirk Key from solenoid, then insert in SW No. 1 Kirk Key and close switch No. 1.
Then insert Kirk Key in SW No. 2 and open switch No. 2.
If needed, close switch No. 3 for UPS load bank testing.
SW-3
SW-2
SW-1
UPS
Three Phase
N.C.
OUTPUT TO LOAD BANK
AC OUTPUT TO CRITICAL LOAD PANEL
N.O.
ESSENTIAL PANEL
MAINTENANCE BYPASS BREAKER BREAKERSWITCHBREAKER
UPS STATIC BYPASS BREAKER
UPS RECTIFIER INPUT BEAKER
SW 2
N.C.
SW 3
SW 1
N.O
Optional Kirk Key Solenoid Power
Essential Panel input to MMBPS
Output from UPS
Output to Critical Panel
Output to
Load Bank
Optional Kirk Keys on Switches SW-1, 2 and 3. Interconnection between UPS and Interlock solenoid for Kirk Key.
N.O = Normally Open
N.C.= Normally Closed
Version 1 10/28/04
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