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LWOM.?tlltiOWlaT.CO1MILT^C�O[N�LL'�G .re��.rw..w~�rner.r�r�.e��u��Yf� <br />Mr. Danlel Mathir PaF Z Ju1� 7� 19t6 <br />Alternwtl�e II wou!d utWse a na� �SO �olt powv aPP�7 �7+tem and roqWre �11 <br />asf�tfo` moton to be roplacad. As �IN Altw�ti�e I, pump No. l and 2�oWd L�e <br />two�peedmotonloRW�d. PopNo.3��.andS1lut�ve)�ouldLa�e�506pmoton <br />Imtatled, 7�Nu TM-2 prnah o�r ntimale o( the uplGl m�4 Im ��!0 wlt <br />puwerwrypll��stem. powerdyWp�tlo���y�elicedL�amsotAltematlteII <br />+re prdmtad In Sketchea 2, 3� and �. <br />It ahould 6e noted tlut Altwati�a II wodd pro�lde c6e Cit� wlth new moCon <br />�nNalled on a11 pump �haeY Altetnatl�e I�ould utilise the ed�t3nQ moton o0 <br />Pump No. 3�nd �. Mhm compvlo� t6e capitd cosb o[ Altemati�n I aod D� u <br />praeMed 1nTaWn TM-1 �od TM-2� tLue i� a dgdflcant �mowt o[ additbn�l �ort <br />and equlpm�t requlred to impleoot Alternati�e II. 7'hse addldooal ltems <br />include two 450hp moton and cootrdlen� ne� rnndutton to ail p�upp�� oa� motor <br />control cmter aod mdn di�tributim vitcAEoard. In dfect. tbe enHre dectdcd <br />•uppl� s�slem �ouid 6e rcplacad �It6 4!0 �dt equipmrnt. <br />BoCL alternatlta po�Ide � potend�l OkM bentfit for t6e Clt�. In Altanati�e I� <br />thewotor� wLic6 ue 6eing r�o�ed (rom A�p� No. 1�nd 2 coWd aeroe u E�ckwp <br />(�palre) moton for Pump� No. 3� 4+nd 3: �ud or� ane of t6e moton could be med n <br />t6e he� pump No. Sdr1�e mots and the �crnnd could serre v a Gck-up, A� �ou ue <br />wdouMad� aw�re� 2,�00 plt motors pid rnntrol equipment are aot norm�lly <br />atncted b� dl�trlEuton u tEe� ue ler commoa. Altenatf�e II�oWd }rovide t6e <br />Clt� �1N all ne� metors �6icT tbeoret{ca��� �hoWd rcducs down tlme �hen <br />compared to the ed�tlnQ 2pyeu dd moton. In additfon the �60 vdt �7rxtem is the <br />mwt c�mmonl� utillud �oltaae !or dmil�r inatallaHb�u �nd waWd pro�ide tLe <br />NghesC le�el of avail�bit{t� of apare par4 for emergmc� needs. It fhoutd Ee noted <br />th+t �eLea referr:nQ to the predoul� ldentificd bcneflb ot 6oth alternatl�es lhe <br />benelita al�o Include the motor atuten �nd mlacel2ineau eq�lpment aasod�ted <br />witA ench motor. <br />Beuuse the Clty Ln mdnttlned tAe pump atatiom m a 2��00 �olt aptem fm <br />appro�umatel� 20 �ean� aa�ent employ�en ue famll{u witA the aptem. <br />Generallr� we �odd anticip�te Lig6er mdntmance co�b for a 2�100 aolt aystem <br />whm cumpared wit6 a 480 �olt aptem. Thi� ia primarii� due to the arai(abilit� and <br />hSgher wage ratn of perwanei vdned uid e�rerienced sith 7�400 �olt a7atem�. <br />Rellability o! the moton and related eq�ripment ir expected to hc equal for either o[ <br />lhe elecidcal �yetcm�. Rdfab{Ilty is sometime asociated with downtime ot a <br />piett o[ equipment. Due to tAe potential di((icWtr o! ohtaining re�pdr pub (or a <br />2�400 volt eyatem we NoWd e�ect tA�t the Iength of time to make energency <br />repaira of a 2,400 volt system voWd be longer than a 980 volt aptem. L� dfect� the <br />480 volt eyatem wa;ild be moee rdlaWe t6an a 2,400 volt aytem. <br />7he wsta as+oristed with Snohomish Coimly PUD No. 1'a step down tnnformer <br />ha>e not 6cen included in thie �.timate. Diaing disenatons with FUD peesonnd, <br />they indicated that due to the4 propoaed changn b[he lnnsformen prlmuy <br />voltag.•, a new lramformer will he i�utalled {n tTc tut�ue. It is important to rwte <br />I •_ <br />'' <br />� :. <br />i�',: <br />l;' • <br />c_�. <br />i�. <br />ii !tiT•' <br />''` . i�.�: _ <br />Y <br />� F,. <br />i�. <br />