Electrical Power Distribution

Owned by Gary Foster
Last updated: May 09, 2024
2 min read

Additional pages in this section:

Documentation

Electrical Group Documents Folder

S&O and UB Facility Electrical Record Drawings working folder - Jackson's CAD Services

Electrical System Interconnects (Excel workbook)

M1 and PA&C OSS Rack ePDU Outlet Assignments

Electrical Spare Parts

Procedure

Electrical Utility Shutdown procedure

Drawings

Drawing index

Quick and Dirty on Power Flavors / Outage expectations:

Standby power (S) - powered by generator after 30 second generator start/ATS transfer delay outage:

  • 300 KVA UPS

  • 10 KVA UPS for Utility building emergency lighting

  • 15 KVA UPS S&O emergency lighting

  • FTS AHU-02, Chiller CH-02, pumps CP-03 and CP-07 in UB

  • UB fans: generator room, mezzanine, tunnel

  • Tunnel sump pump

  • Generator day tank

  • Air compressor and dryer #2

  • Receiving and Coude cranes

  • M1 cart receptacle in receiving area

  • Elevator and LULA

  • PFlow and roll-up doors

  • Subset of S&O FTS pumps

  • Waste treatment aerator

  • Enclosure azimuth/shutter drives, vent gates, cranes

  • Coude instrument and OSS rack thermal/fans

Emergency power (EM) - 300 KVA Generator backed UPS. Continuously online
throughout power outages:

  • Fire alarm control panel

  • Network IDF racks: Utility building mezzanine and S&O ground,

mezzanine / utility level

  • Computer room row A

  • Control room wiremold outlets

  • Mount, Coude, Enclosure control systems and Enclosure Aperture drives

  • M1 cover

  • Xbox PLC/controls

  • GIS including GIC, TIM, LIC's with the exception of the OSS LIC

  • FMS PLCs/controls

  • Cryo-NIRSP electronics racks

UPS power (UPS) - 200 KVA UPS on normal power feed. Runtime spec of 5 minutes at full load. Actual runtime with current loading is much longer, however, if the UPS runs to an end-of-discharge shut down, it is prone to inrush circuit breaker tripping on re-start.

  • VBI, ViSP, DL-NIRSP, WFC, NCSP, VTF

  • 16C chillers

  • Computer room rows B, C, D

  • Instrument prep lab 3-phase 208V receptacles

  • M1/M2 OSS rack

  • PA&C OSS rack including M3 controller and OSS LIC

  • GOS blower rack

  • M3/M4/M6 thermal rack

  • M5/M6 control rack MER3 and M5 thermal rack MER2

Emergency lighting (UPSEM power) - Both the Utility building and S&O emergency lighting UPS's are fed from generator backed panels so emergency lighting remains powered for the duration of MECO outages.