3 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗Document / 3 pages
Engineering firm correspondence, 7 World Trade Center, August 1999
Machine-extracted title · confidence 70%Correspondence from engineering firm regarding 7 World Trade Center Mayor's Office of Emergency Management project.
NYC-WTC_000172389–000172391Folder label: “Mayor's Office of Emergency Management (Generator Test) Our Job No. 1854”
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OCR text
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
1)3 04 99 OS II l-'U 2122I902.36 .SWV.NKE HAYDEN CONM-I.I. 1^00.3 004 OS/03/89 16:02 F'AJL 212 815 3700 COSENTI.NI I21003z'004
Mr. Joe Aliotta Swaruce Hayden Connell Page Two CoMTiHni AuociolM LLP Coruuiltng Engineer]
3, A simulated power outage was performed on automatic transfer switches (A.T.S.) numbers 2 thru 9. During loss of normal power all “AT, S.’s” tranEferred to the altemate power source with no difficulties. Time set points were set on all swtehes.
4. A simulated power outage was performed on A.T.S. #1. During loss of normal power AT S.# 1 started the generators and was on line in approximately 7 seconds. Al other switches transferred to alternate power source.
5. : A total power outage was performed by opening all transfer switches 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. i Russel Electric to modify their software to perform priority load shedding sequence.
Remark; At this point of the system it does not affect the operation to deliver emergency power, but must be incorporated and testtsd.
2. I Coirect the fbeJ oil pump system not operating for this test.
RMoark: The system is connected to a building fuel pump for temporary use. Operation of system is not affected. I 3. Electrical contractor to label all buss duct and local disconnect switches.
Remark; R.B. Samuds to complete
4. ' Correct on all 3 generator’s cracks in muffler insulation.
Remark: Ambassador to address.
I
Combi Chicago New York CDriondo Wruhlnglon, CXZ
NYC-WTC_000172390
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NYC-WTC_000172390Source: NYC Law Department, mirrored locally
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