3 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗Document / 3 pages
Engineering memorandum, job 1854, August 1999
Machine-extracted title · confidence 95%Engineering consultant memorandum dated August 2, 1999 related to 7 World Trade Center Mayor's Office of Emergency Management.
NYC-WTC_000172539–000172541Folder label: “Mayor's Office of Emergency Management (Generator Test) Our Job No. 1854”
Page image
OCR text
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
O.S 04 90 OS I I EKt 21 j;:i00?.36 •SWKNKE HKVDEN CONNEI.I. 1^00,3/00 4 08/03/99 18:02 FAX 212 61S 3700 COSEEUXL, 21003/004
Mr. Joe Alictta SwaoKe Hayden Connell Page Two CoMntini AuocialM LLP Coruulltng Engineers
3, A simulated power outage was performed on automatic transfer swiitchcs (A.T.S.) numbers 2 thru 9, During loss of normal power all “A.T,S .’s” transferred to the alternate power source with no difficulties. Time set points were set on ail switches.
4. A simulated power outage was performed on A.T.S. #1. During loss of normal power AT S.#I started the generators and was on line in approximately 7 seconds. All other switches transferred to alternate power source.
5. ; A total power outage was performed by opening all transfer switchers alternate power disconnect switches. Loss of normal power to A.T.S. #1 started the generators. All other transfer switches remained at primary power source position until generators were on line (approximately 7 seconds) and served each of the transfer switch loads.
The following items were noted to be addressed and completed:
1. ' Russel Electric to modify tiieir software to perform priority load shedding sequence.
' Remark: At this point of the system it does not affect the operation to deliver emffl-gency power, but must be incorporated and tcstisd.
2. I Correct the £bel oil pump system not operating for this test.
Remark: The system is connected to a building feel pump for temporary use. Operation of system is not affected. 1 3. Electrical contractor to label all buss duct and local disconnect switches.
Remark: R.B. Samuels to complete
4. * Correct on all 3 generator’s cracks in muffler insulation.
Remark; Ambassador to address.
I
Combi irjg«i Chicogo Now York C^riondo WdihJnglon, DC
NYC-WTC_000172540
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NYC-WTC_000172540Source: NYC Law Department, mirrored locally
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