Scientific Study of Unidentified Flying Objects (the Condon Report, complete, three volumes)

PJ~l system 5epclrat'Jl1 from wcstelll New York due to the
tripping of the lhmk il'k-Erie 23 f)-kv. line and the lines
running east and \>'e-:\ from Warren. Pa.
At almost the same time, scparatic,)1 fTc"':- -l.:nt.ral
~cw York begull when line protect i vc relays opcratod to
open the two Rochester-Clay 345-kv. circuitq at 3.56
and 3.61 seconds. The computtJr simulation demonstrated
that the parallel lower voJtage circuits opened immed-
iately thereafter.
~oses-St. Lawrence generating station in northern
~ew York, now connected to New England and central New
York, continued to accelerate toward an out-of-stCD
condition, tripping the two Moses-Adirondack circuits at
.3.~)8 and 4,01 seconds. This was followed by automatic
generator dropping ~n at C;rcenwoou approx-
imately 7 seconds after the initial eVel'lt, The opening of
thl'sC l'il'cuits sl'jJurateu eastern New York and New England
from PJM. 169
PJ~I systellJ !Oep",ratr~u from wcstelll New York due to the
tripping of the llunkl!'k-Eric 23 rJ-kv. line and the ljJ1es
rUIlning east and \"e-1 from WarrQn. Fa.
At almost the sarno time, scparaticn fr~r -untrnl
l';cw York begall when line protect iva relays operated to
open the two Rochester-Clay 34S-kv. circuits at 3.56
and 3.61 S(,COIHls. The computuT simulation demonstrated
that the parallel lower vol tage circuits opened immed-
iately t,hereafter.
Moses-St. Lawrence generating station in northern
New York, now connected to New England and central New
York, continued to accelerate toward an out-of-stCD
condition, tripping the two Moses-Adirondack circuits at
3.~)8 ilnd 4.Ul seconds. This was followed by alitolilatic
generator dropping at Moses-St. Lawrence in an attempt
to maintain ar~a stability. At this late stage, this
did not rrev~nt the opening of the Plattsburgh-Essex
230-kv. circuit at 4.11 seconds. Automatic reclosure
was ullsucr.::essftll 011 the two ~loses-AJirol1dad, 230-kv.
circuits at 4.79 and 4.81 seconds. Northern New York
was now effectively separated frum central New York and
New England. The switching sequences in the St. Lawrence
area separation were determined from oscillographic
rel:onls "t Moses-St. Lawrence, and wen: lIot duplicated
sUccessfully in the computer sil'lulatioJl.
The sepurat ion of ~!est(;l'n New York frum central
NL'w York was follo'''cu by tl1C' 5epar~t.i 011 of c\:Jltral New
)'01")... from PJ~I at approxl!1lutcly 4 !)oCOJ'd:; with the OPCll--
Ing of the 2:iO-kv. lIi.llsiJc-East Towanda lilJ(;), til(' North
Waved)I-East Suyr<.' lill!;! anu the (;ouJcy-- LenJlox line. Thls
separation was followed by ,I surge of about liDO megaw .. tts
f:om New .Jerse)' to C:on~olidateJ EJison [ICrOSS the Fresh
Kllls-Linucn circuit. This caused tl'lO lines in series with
the Fresh Ki lls-Linden cirelli t to open at C:r(;)l:I1WOOU approx-
imately 7 sl.'conds after the .initial cvcr,t. The ()pCnili/i of
thl'SC (in:uits Sl'jJUl'fltl'd eastern New York und New 1:nglullJ
from PJM. 169