AM6 P964 Specifications 11 Mar 21.pdf

P- 964 Shor e t o Shi p Ut i l i t i es, NSA2, Bahr ai n 474976

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STATI C FREQUENCY CONVERTERS ( SFCS)

REVI SED BY AMENDMENT NO. 0006

05/11

PART 1 GENERAL

1. 1 REFERENCES

The publ i cat i ons l i s t ed bel ow f or m a par t of t hi s speci f i cat i on t o t he ext ent r ef er enced. The publ i cat i ons ar e r ef er r ed t o wi t hi n t he t ext by t he basi c desi gnat i on onl y.

I NSTI TUTE OF ELECTRI CAL AND ELECTRONI CS ENGI NEERS ( I EEE)

I EEE 519 ( 2014) Recommended Pr act i ces and Requi r ement s f or Har moni c Cont r ol i n El ect r i cal Power Syst ems

I EEE 1159 ( 2009) Recommended Pr act i ce on Moni t or i ng El ect r i c Power Qual i t y

I EEE C2 ( 2017; Er r at a 1- 2 2017; I NT 1 2017) Nat i onal El ect r i cal Saf et y Code

I EEE C62. 41. 1 ( 2002; R 2008) Gui de on t he Sur ges Envi r onment i n Low- Vol t age ( 1000 V and Less) AC Power Ci r cui t s

I EEE C62. 41. 2 ( 2002) Recommended Pr act i ce on Char act er i zat i on of Sur ges i n Low- Vol t age ( 1000 V and Less) AC Power Ci r cui t s

I NTERNATI ONAL ELECTROTECHNI CAL COMMI SSI ON ( I EC)

I EC 60146- 2 ( 1999) Semi conduct or Conver t er s - Par t 2:

Sel f - Commut at ed Semi conduct or Conver t er s I ncl udi ng Di r ect d. c. Conver t er s - Second Edition

I EC 60204- 1 ( 2009) Saf et y of Machi ner y – El ect r i cal Equi pment of Machi nes – Par t 1: Gener al Requi r ement s - Edi t i on 5. 1; Consol i dat ed Reprint

I EC 60204- 11 ( 2000) Saf et y of Machi ner y - El ect r i cal Equi pment of Machi nes - Par t 11:

Requi r ement s f or HV Equi pment f or Vol t ages Above 1 000 V a. c. or 1 500 V d. c. and Not Exceedi ng 36 kV - Fi r st Edi t i on

I EC 60439- 1 ( 2000) Low- vol t age swi t chgear and cont r ol gear assembl i es Par t 1: Type- t est ed and par t i al l y t ype- t est ed assembl i es

I EC 60871- 1 ( 2005) Shunt capaci t or s f or a. c. power syst ems havi ng a r at ed vol t age above 1 000

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V - Par t 1: Gener al - Thi r d Edi t i on

I EC 61000- 2- 4 ( 2002) El ect r omagnet i c compat i bi l i t y ( EMC) Par t 2- 4: Envi r onment - Compat i bi l i t y l evel s f or l ow- f r equency conduct ed di st ur bances - Second Edi t i on

I EC 61000- 2- 12 ( 2003) El ect r omagnet i c compat i bi l i t y ( EMC) Par t 2- 12: Envi r onment Compat i bi l i t y l evel s f or l ow- f r equency conduct ed di st ur bances and si gnal l i ng i n publ i c medi um- vol t age power suppl y syst ems - Edi t i on 1. 0

I EC 61000- 4- 7 ( 2009) El ect r omagnet i c compat i bi l i t y ( EMC)

– Par t 4- 7: Test i ng and measur ement t echni ques – Gener al gui de on har moni cs and i nt er har moni cs measur ement s and i nst r ument at i on, f or power suppl y syst ems and equi pment connect ed t her et o - Edi t i on

2. 1; Consol i dat ed Repr i nt

I EC 61800- 3 ( 2012) Adj ust abl e speed el ect r i cal power dr i ve syst ems – Par t 3: EMC r equi r ement s and speci f i c t est met hods - Edi t i on 2. 1;

Consol i dat ed Repr i nt

I EC 62271- 1 ( 2011) Hi gh- vol t age swi t chgear and cont r ol gear – Par t 1: Common speci f i cat i ons - Edi t i on 1. 1; Consol i dat ed Reprint

I EC/ TR 61000- 3- 6 ( 2008) El ect r omagnet i c compat i bi l i t y ( EMC)

– Par t 3- 6: Li mi t s – Assessment of emi ssi on l i mi t s f or t he connect i on of di st or t i ng i nst al l at i ons t o MV, HV and EHV power syst ems - Edi t i on 2. 0

NATI ONAL ELECTRI CAL MANUFACTURERS ASSOCI ATI ON ( NEMA)

NEMA 250 ( 2018) Encl osur es f or El ect r i cal Equi pment ( 1000 Vol t s Maxi mum)

NATI ONAL FI RE PROTECTI ON ASSOCI ATI ON ( NFPA)

NFPA 70 ( 2017; ERTA 1- 2 2017; TI A 17- 1; TI A 17- 2;

TI A 17- 3; TI A 17- 4; TI A 17- 5; TI A 17- 6;

TI A 17- 7; TI A 17- 8; TI A 17- 9; TI A 17- 10;

TI A 17- 11; TI A 17- 12; TI A 17- 13; TI A

17- 14) Nat i onal El ect r i cal Code

1. 2 RELATED REQUI REMENTS

Sect i on 26 00 00. 00 20 BASI C ELECTRI CAL MATERI ALS AND METHODS and Sect i on 25 05 11. 26 CYBERSECURI TY FOR FACI LI TY RELATED CONTROL SYSTEMS, appl i es t o t hi s sect i on wi t h addi t i on and modi f i cat i ons speci f i ed her ei n. Sect i on 26 35 53 STATI C FREQUENCY CONVERTER SFC HOUSE AND sect i on 26 12 23 STATI C FREQUENCY COVERTER TRANSFORMERS ar e al so a par t of t hi s speci f i cat i on and al l of t hese i t ems must be pr ovi ded by t he same vendor and coor di nat ed

SECTI ON 26 35 43 Page 2 t oget her t o pr ovi de a compl et e wor ki ng syst em. Devi at i ons t hat ar e r equi r ed f r om t he speci f i cat i ons shal l pr ovi de t he same or hi gher l evel of qual i t y, cont r ol and saf et y, and t hese devi at i ons shal l be i ndi cat ed pr i or t o bi d f or appr oval .

1. 3 SUBMITTALS

Gover nment appr oval i s r equi r ed f or submi t t al s wi t h a " G" desi gnat i on;

submi t t al s not havi ng a " G" desi gnat i on ar e f or i nf or mat i on onl y. When used, a desi gnat i on f ol l owi ng t he " G" desi gnat i on i dent i f i es t he of f i ce t hat wi l l r evi ew t he submi t t al f or t he Gover nment . Submi t t he f ol l owi ng i n accor dance wi t h Sect i on 01 33 00 SUBMI TTAL PROCEDURES:

SD- 02 Shop Dr awi ngs

SFC Dr awi ngs; G M

Shor t Ci r cui t Model ; G M

SD- 03 Pr oduct Dat a

St at i c Fr equency Conver t er

SD- 05 Desi gn Dat a

St r uct ur al Desi gn Repor t ; G M

SD- 06 Test Repor t s

Wor k Pl an; G M

Routine Factory Test Pl an; G M

Speci al Fact or y Test Pl an; G M

Per f or mance Test Pl an; G M

Equi pment Test Schedul e; G M

Routine Factory Test Repor t s; G M

Speci al Fact or y Test Repor t s; G M

Accept ance Checks and Test s; G M

SD- 07 Cer t i f i cat es

Qual i f i cat i ons of Manuf act ur er

St ar t - Up Engi neer

SD- 09 Manuf act ur er ' s Fi el d Repor t s

Per f or mance Test Repor t s

Tr ai ni ng Syl l abus

SFC Desi gn Test s

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Routine Factory Tests

SD- 10 Oper at i on and Mai nt enance Dat a

SFC Assembl y O & M, Dat a Package 5; G R

Local O & M Manual s; G R

Pr el i mi nar y O & M Manual s, Dat a Package 5; G R

1. 4 QUALI TY ASSURANCE

1. 4. 1 SFC Dr awi ngs

Pr ovi de scal ed dr awi ngs of encl osur e out l i ne i ncl udi ng f r ont , t op, s i de v i ews, and over al l di mensi ons. Pr ovi de ext er nal power and cont r ol wi r i ng and cabl e connect i ons. Pr ovi de si ngl e l i ne, schemat i c, wi r i ng di agr ams, sur ge pr ot ect or s, cont act or s, r ect i f i er s, and cool i ng dat a r equi r ement s.

Dr awi ngs must show al l necessar y i nf or mat i on t o ensur e pr oper coor di nat i on.

1. 4. 1. 1 Shor t Ci r cui t Model

Pr ovi de shor t c i r cui t model of t he SFC i ncl udi ng al l i mpedances r equi r ed t o per f or m a shor t c i r cui t st udy on t he ext er nal syst em connect ed t o t he SFC. I nf or mat i on must be of suf f i c i ent det ai l t o al l ow i t s use i n an ext er nal shor t c i r cui t comput er pr ogr am.

1. 4. 2 St ar t - Up Engi neer

Pr ovi de t he ser vi ces of a qual i f i ed f act or y t r ai ned st ar t - up engi neer .

The st ar t - up ser vi ces must i ncl ude conduct i ng pr el i mi nar y oper at i ons and f unct i onal accept ance t est s. The st ar t - up engi neer must be pr esent at t he SFC i nst al l at i on s i t e, f ul l - t i me, whi l e pr el i mi nar y oper at i ons and f unct i onal accept ance t est s ar e bei ng conduct ed. Pr ovi de t he r esume of t he st ar t - up engi neer f or appr oval .

1. 4. 2. 1 Rout i ne Fact or y Test Pl an

Submi t 7 copi es of t est pl ans and pr ocedur es at l east 21 cal endar days pr i or t o t he t est s bei ng conduct ed. Pr ovi de det ai l ed descr i pt i on of t est pr ocedur es, i ncl udi ng t est equi pment and set ups, t o be used t o ensur e t he conver t er meet s t he per f or mance speci f i cat i on and expl ai n t he t est met hods t o be used. As a mi ni mum, t he t est pr ocedur es must i ncl ude t he t est s r equi r ed under t he par agr aph ent i t l ed " Rout i ne Factory Tests."

1. 4. 2. 2 Speci al Fact or y Test Pl an

Submi t 7 copi es of t est pl ans and pr ocedur es wi t h t he Rout i ne Fact or y Test Pl an. Pr ovi de det ai l ed descr i pt i on of t est pr ocedur es, i ncl udi ng t est equi pment and set ups, used t o ensur e t he conver t er meet s t he per f or mance speci f i cat i on and expl ai n t he t est met hods used. As a mi ni mum, t he t est pr ocedur es must i ncl ude t he t est s r equi r ed under t he par agr aph ent i t l ed " Speci al Fact or y Test s. "

1. 4. 2. 2 Per f or mance Test Pl an

Submi t 7 copi es of t est pl ans and pr ocedur es at l east 15 cal endar days pr i or t o t he st ar t of f i el d t est s. Pr ovi de det ai l ed descr i pt i on and dat es and t i mes schedul ed f or per f or mance of t est s, and det ai l ed descr i pt i on of

SECTI ON 26 35 43 Page 4 t est pr ocedur es, i ncl udi ng t est equi pment ( l i s t make and model and pr ovi de f unct i onal descr i pt i on of t he t est i nst r ument s and accessor i es) and set ups of t he t est s t o be conduct ed t o ensur e t he conver t er meet s t he per f or mance speci f i cat i on. Expl ai n t he t est met hods t o be used. As a mi ni mum, t he t est pr ocedur es must i ncl ude t he t est s r equi r ed under t he par agr aph ent i t l ed " Fi el d Qual i t y Cont r ol . " Test r epor t s must i ncl ude power qual i t y measur ement dat a col l ect ed i n accor dance wi t h I EEE 1159.

1. 4. 2. 3 Wor k Pl an

Submi t a wr i t t en schedul e of dat es of r out i ne and speci al f act or y tests, i nst al l at i on, f i el d t est s, and oper at or t r ai ni ng f or t he conver t er syst em. Fur ni sh a l i s t of i nst r ument at i on equi pment f or f act or y and f i el d t est r epor t s.

1. 4. 2. 4 Routine Factory Test Repor t s

Submi t wi t hi n 45 cal endar days af t er compl et i on of t est s. Recei ve appr oval of t est pr i or t o shi ppi ng uni t . Cer t i f y t est s wer e conduct ed on each SFC i n accor dance wi t h t he r equi r ement s set f or t h i n par agr aph ent i t l ed " Rout i ne Fact or y Test s" and cer t i f y conver t er sat i sf act or i l y oper at ed wi t hi n speci f i ed l i mi t s. Repor t must i ncl ude copi es of t he t est pr ocedur es, t est dat a, and r esul t s.

1. 4. 2. 5 Speci al Fact or y Test Repor t s

Cer t i f y t est s wer e conduct ed on a conver t er of t he same desi gn, const r uct i on and kVA and vol t age r at i ng t o be pr ovi ded and i n accor dance wi t h t he r equi r ement s set f or t h i n par agr aph ent i t l ed " Speci al Fact or y Test " and cer t i f y conver t er oper at ed wi t hout mal f unct i oni ng wi t hi n speci f i ed l i mi t s. Repor t must i ncl ude copi es of t he t est pr ocedur es, t est dat a, and r esul t s.

1. 4. 2. 5 Per f or mance Test Repor t s

Submi t r epor t of t est r esul t s as speci f i ed by par agr aph ent i t l ed " Fi el d Qual i t y Cont r ol " wi t hi n 15 cal endar days af t er compl et i on of t est s.

Cer t i f y t est s wer e conduct ed on each conver t er i n accor dance wi t h t he par agr aph ent i t l ed " Fi el d Qual i t y Cont r ol " and cer t i f y conver t er sat i sf act or i l y oper at ed wi t hi n speci f i ed l i mi t s. Repor t must i ncl ude copi es of t he t est pr ocedur es, t est dat a, and r esul t s.

1. 4. 3 Qual i f i cat i ons of Manuf act ur er

The manuf act ur er must be r egul ar l y and pr of essi onal l y engaged i n t he busi ness of t he desi gn, manuf act ur i ng, appl i cat i ons, i nst al l at i on, and t est i ng of sol i d st at e f r equency conver t er s at t he same or equi val ent kVA and vol t age r at i ng as speci f i ed her ei n. The manuf act ur er must demonst r at e exper i ence i n pr ovi di ng successf ul st at i c f r equency conver t er syst ems wi t hi n t he past three five year s of s i mi l ar scope and si zed at 1 MVA or larger . Qual i f i cat i ons must show a mi ni mum of t hr ee and a maxi mum of f i ve successful l i nst al l at i ons, i ncl udi ng, but not l i mi t ed t o, connect i ons t o non- l i near l oads, par al l el ed oper at i ons wi t h ot her gener at i ng syst ems such as st at i c f r eqency conver t er s, mot or - gener at or s, and/ or di esel gener at or s.

Exper i ence i n manuf act ur i ng mot or gener at or s and por t abl e engi ne- dr i ven power uni t s do not qual i f y as bei ng equi val ent .

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1. 4. 4 St r uct ur al Desi gn

The equi pment and anchor age/ mount i ng must be desi gned t o r esi st t he st r uct ur al l oads def i ned on pr oj ect dr awi ng S- 001. The desi gn must be per f or med by a r egi st er ed st r uct ur al engi neer and i ncl uded i n a St r uct ur al Desi gn Repor t whi ch i s seal ed by t he desi gner .

1. 4. 5 Regul at or y Requi r ement s

I n each of t he publ i cat i ons r ef er r ed t o her ei n, consi der t he advi sor y pr ovi s i ons t o be mandat or y, as t hough t he wor d, " must " had been subst i t ut ed f or " shoul d" wher ever i t appear s. I nt er pr et r ef er ences i n t hese publ i cat i ons t o t he " aut hor i t y havi ng j ur i sdi ct i on, " or wor ds of s i mi l ar meani ng, t o mean t he Cont r act i ng Of f i cer . Equi pment , mat er i al s, i nst al l at i on, and wor kmanshi p must be i n accor dance wi t h t he mandat or y and advi sor y pr ovi s i ons of NFPA 70 unl ess mor e st r i ngent r equi r ement s ar e speci f i ed or i ndi cat ed.

1. 5 MAINTENANCE

1. 5. 1 SFC Assembl y O & M

Submi t oper at i on and mai nt enance dat a i n accor dance wi t h Sect i on 01 78 23 OPERATI ON AND MAI NTENANCE DATA, Dat a Package 5 and as speci f i ed her ei n.

The submi t t ed dat a package must i ncl ude l i t er at ur e f or mechani cal and el ect r i cal component s, and SFC assembl y.

1. 5. 1. 1 Local O & M Manual s

Pr ovi de l ocal oper at i ons and mai nt enance manual s at t he SFC assembl y.

Manual s must be assembl ed i n a dur abl e, har d cover ed, wat er r esi st ant bi nder . The manual must be assembl ed and i ndexed i n t he or der not ed i n a t abl e of cont ent s. The cont ent s of t he l ocal oper at i on and mai nt enance manual s must be as f ol l ows:

a. Manuf act ur er ' s O&M i nf or mat i on r equi r ed by t he par agr aph ent i t l ed, " SD- 10 Oper at i on and Mai nt enance Dat a" .

b. Cat al og dat a r equi r ed by t he par agr aph ent i t l ed, " SD- 03 Pr oduct Dat a" .

c. Dr awi ng r equi r ed by t he par agr aph ent i t l ed, " SD- 02 Shop Dr awi ngs" .

d. A weat her pr oof , t ear - r esi st ant pl ast i c dat a sheet wi t h oper at i ng i nst r uct i ons f or each uni t i ncl udi ng st ar t up, shut down, and par al l el i ng pr ocedur es.

e. Pr i ce f or spar e par t s and suppl y l i s t f . Rout i ne and f i el d accept ance t est r epor t s

1. 5. 1. 2 Pr el i mi nar y O & M Manual s

Pr i or t o schedul i ng Fi el d Per f or mance Test s, 2 copi es of a Pr el i mi nar y Oper at i on and Mai nt enance Manual must be submi t t ed t o and appr oved by t he Cont r act i ng Of f i cer .

1. 5. 1. 3 Ext r a Mat er i al

Fur ni sh r ecommended manuf act ur er ' s spar e par t s l i s t and schedul e of pr i ces

SECTI ON 26 35 43 Page 6 f or each t ype of conver t er and ot her equi pment speci f i ed i n t hi s sect i on.

Thi s l i s t shal l i ncl ude t he f ol l owi ng:

a. Power semi - conduct or s

b. Power f i l t er capaci t or s

c. Pl ug- i n l ogi c car ds

d. Out put swi t chi ng modul es

e. Fuses f . I ndi cat or l amp/ LED

1. 6 WARRANTY

Cont r act or must war r ant al l pr oduct s pr ovi ded under t hi s sect i on t o be f r ee f r om def ect s i n mat er i al s and wor kmanshi p f or t he per i od set f or t h i n t he manuf act ur er ' s st andar d war r ant y, one year , or as i ndi cat ed ot her wi se, whi chever i s l onger . War r ant y per i od must begi n at t he t i me of Gover nment accept ance f or t he wor k under whi ch t he pr oduct s wer e i nst al l ed. Assi gn al l manuf act ur er war r ant i es t o t he Gover nment . Ref er t o t he Di v i s i on 01 sect i ons f or mor e i nf or mat i on.

PART 2 PRODUCTS

2. 1 STATI C FREQUENCY CONVERTER

2. 1. 1 Standards

The st at i c f r equency conver t er ( SFC) must conf or m t o I EEE 519, I EC 60146- 2, I EC 60204- 1, I EC 60204- 11, I EC 60871- 1, I EC 60439- 1, I EC 62271- 1, I EC 61800- 3, I EC/ TR 61000- 3- 6, I EC 61000- 2- 4, and I EC 61000- 2- 12 st andar ds.

2. 1. 2 Gener al Requi r ement s

Pr ovi de a st at i c f r equency conver t er ( SFC) uni t s t hat ar e assembl ed and t est ed pr i or t o t he ar r i v i al t o t he const r uct i on s i t e. The SFC must consi st of f i el d modul ar const r uct i on usi ng t he l at est desi gn of sol i d st at e component s. The har moni c cont ent of t he SFC must be l ess t han f i ve per cent t ot al at f ul l l oad. The cont r act or must i dent i f y, i n t he pr oposal , t he t ot al har moni c di st or t i on ( THD) of t he SFC i nput and out put syst em, i ncl udi ng met hods of achi evi ng t he desi r ed THD. Accept abl e met hods i ncl ude t wel ve pul se r ete ct i f i er s, har moni c f i l t er s, or har moni c cancel l at i on devi ces. Ot her met hods wi l l be consi der ed, pr ovi ded t hat t he cont r act or can cl ear l y demonst r at e successf ul depl oyment of SFC of s i mi l i ar s i ze. A compl et e SFC package must consi st of t he f ol l owi ng:

a. 50 Her t z t o 60 Her t z St at i c Fr equencey Conver t er s.

b. I nput and out put t r ansf or mer s as speci f i ed i n Sect i on 26 12 23

STATI C FREQUENCY CONVERTER TRANSFORMERS.

c. Encl osur e as speci f i ed i n Sect i on 26 35 53 STATI C FREQUENCY CONVERTER

HOUSE..

d. Cl osed- l oop wat er cool i ng syst em wi t h heat exchanger s, f ans, and auxi l i ar i es as desi gned by t he manuf act ur er .

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e. Cont r ol syst em t hat wi l l i nt egr at e and l oad shar e wi t h exi st i ng di esel gener at or s and mot or - gener at or syst ems.

2. 1. 3 El ect r i cal Char act er i st i cs

The SFC package must meet t he f ol l owi ng char act er i st i cs:

a. I nput vol t age i nt o t he st ep down t r ansf or mer must be r at ed at 11, 000- Vol t , t hr ee phase, 50 Her t z f r om cur r ent l i mi t ed sour ce ( i . e.

c i r cui t br eaker ) .

b. Out put vol t age f r om t he st ep up t r ansf or mer must be r at ed at 11, 000- Vol t , t hr ee phase, 60 Her t z t o cur r ent l i mi t ed sour ce ( i . e. c i r cui t br eaker ) .

c. SFC cont i nuous capaci t y must be 10 MVA.

d. I nput power f act or must be bet ween 0. 8 and 1. 0.

e. I nput cur r ent THD must be l ess t han 5 per cent of t he f undament al wi t h nomi nal i nput vol t age f r om zer o t oat f ul l l oad.

f . I ndi v i dual i nput har moni c cont ent must not exceed 3. 0 per cent of fundamental f or zer o t oat f ul l l oad.

g. SFC must have an ef f i c i ency equal t o or gr eat er t han 95% f or l oadi ng l evel s bet ween 30% and 100%.

h. Out put vol t age must not exceed 3. 0 per cent of nomi nal vol t age f r om no l oad t o f ul l l oad.

2. 1. 4 Syst em Oper at i on

The SFCs, as i ndi cat ed, must be sui t abl e f or connect i on t o a 50 her t z ( i nput ) , 60 her t z ( out put ) power di st r i but i on syst em. The i nput and out put of t he SFC syst em wi l l be f ed by way of medi um vol t age vacuum f aul t i nt er r upt er s i n t he upst r eam pad- mount ed swi t ches.

2. 1. 4. 1 Nor mal Oper at i on

I n nor mal oper at i on each SFC wi l l pr ovi de power t o t hr ee hot el st at i ons each compr i sed of a t hr ee ( 3) MVA t r ansf or mer .

2. 1. 4. 2 Mai nt enance Oper at i on

I n mai nt enance oper at i on one SFC wi l l pr ovi de power t o up t o s i x hot el s st at i ons each compr i sed of a t hr ee ( 3) MVA t r ansf or mer . The t ot al r unni ng l oad i s may be up t o 7500 kVA di st r i but ed t hr ough t hese hot el st at i ons.

2. 1. 4. 3 St ar t - Up Oper at i on

I n st ar t up, each of t he t hr ee ( 3) MVA hot el st at i ons wi l l be ener gi zed i ndi v i dual l y. The SFCs shal l be capabl e of st ar t i ng t hr ee 2. 5 MVA st ep l oads whi l e mai nt ai ni ng t he pr evi ous r unni ng l oads.

2. 1. 5 Load Range

SFC must oper at e i nt o a l oad wi t h t he f ol l owi ng char act er i st i cs:

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a. 7. 5 MW t ot al l oad

b. 10 per cent nonl i near l oad

c. Li near l oad wi t h a power f act or bet ween 0. 75 l aggi ng and 0. 95 l eadi ng.

d. No l oad l osses no gr eat er t han 2 per cent of t he cur r ent out put kV r at i ng, i ncl udi ng l osses i n t he t r ansf or mer s f ur ni shed as par t of t he syst em.

2. 1. 6 Phase Angl e Regul at i on

Di spl acement angl e bet ween adj acent vol t age phases must be 120 degr ees pl us or mi nus 2 degr ees wi t h bal anced l oad and pl us or mi nus 4 degr ees wi t h t hr ee phase unbal anced l oad. A 15 per cent unbal anced l oad i s def i ned as f ol l ows:

a. One phase at f ul l r at ed si ngl e phase l oad.

b. Any ot her Phase at 85 per cent of f ul l r at ed si ngl e phase l oad.

2. 1. 7 Fr equency St abi l i t y

Pr ovi de a hi gh accur acy cr yst al c l ock t o cont r ol out put f r equency of t he 60 Hz conver t er wi t hi n pl us or mi nus 0. 5 per cent f or al l oper at i ng condi t i ons i ncl udi ng maxi mum and mi ni mum oper at i ng vol t ages, ambi ent t emper at ur e and r el at i ve humi di t y. The f r equency r egul at i on must oper at e i ndependent l y of suppl y f r equency and l oad changes.

2. 1. 8 Pr ot ect i ve Cont r ol s

Pr ovi de t he SFC pr ot ect i ve cont r ol as f ol l ows:

a. I nput Under vol t age.

b. I nput Over vol t age.

c. Loss of Phase

d. Door I nt er l ock: When any access door i s opened, t he i nt er l ock c i r cui t r y must open t he 50 Hz i nput devi ce and 60 Hz out put devi ce and not al l ow t he i nput or out put devi ce t o c l ose. For mai nt enance pur poses, pr ovi de a bypass swi t ch t o def eat t he i nt er l ock c i r cui t r y

e. Out put over vol t age - Pr ot ect by t r i ppi ng out put devi ces f or i nst ant aneous over vol t age of 30 per cent or mor e and f or 10 t o 30 per cent over vol t age l ast i ng mor e t han 0. 25 second.

f . Out put under vol t age - Pr ot ect by pr event i ng t he cl osi ng of t he out put di sconnect unt i l t he out put vol t age i s 95 per cent of t he r at ed out put .

I f , af t er c l osi ng, t he vol t age decr eases t o bel ow 90 per cent f or l onger t han 5 seconds, pr ovi de r el ayi ng t o t r i p out put devi ces ut i l i z i ng a f i el d- adj ust abl e t i me- del ayed ci r cui t wi t h a r ange of 4 t o 10 seconds.

g. Out put f r equency - Pr ot ect by t r i ppi ng out put devi ces f or f r equency change i n excess of pl us or mi nus 5 per cent of t he r at ed out put f r equency ( 60 HZ) .

SECTI ON 26 35 43 Page 9

h. Out put Over l oad.

i . Conver t er over t emper at ur e pr ot ect i on.

2. 1. 9 Aut o Rest ar t

Af t er a t ot al i nput power out age t he uni t shal l be capabl e of aut omat i cal l y r est ar t i ng and r e- ener gi z i ng l oads upon r est or at i on of nor mal power . Pr ovi de SFC uni t s wi t h a manual / aut o r est ar t swi t ch. I f t hi s pr ovi s i on r equi r es a backup bat t er y power suppl y t hi s shal l be pr ovi ded. When i nt er l ock c i r cui t has been i nt er r upt ed or when i nt er l ock i s i n t he mai nt enance posi t i on manual r est ar t , t he syst em shoul d not restart.

2. 1. 10 Bui l t - I n Test Equi pment

SFC must i ncl ude bui l t - i n t est equi pment whi ch moni t or s bot h pr i mar y c i r cui t s and pr ot ect i on c i r cui t s of t he uni t . Pr ovi de vi sual i ndi cat i on t o assi st di agnosi s of uni t f ai l ur es t o a modul ar l evel . Pr ovi de vi sual i ndi cat i on of conver t er st at us usi ng cabi net mount ed l i ght emi t t i ng di odes.

2. 1. 11 Assembl y Const r uct i on

Pr ovi de encl osur es sui t abl e f or i ndoor envi r onment s i n accor dance wi t h NEMA 250. Ar r ange t o pr ovi de r equi r ed l ouver s, cool i ng ai r , bot t om ent r y pr ovi s i ons f or equi pment wi t hi n encl osur es. Const r uct uni t ( s) so t hat component s, wi t h t he except i on of cont r ol and moni t or i ng component s, ar e t ot al l y encl osed wi t hi n t he encl osur e. El ect r oni c c i r cui t s i ncl udi ng power c i r cui t s must be modul ar const r uct i on r eadi l y accessi bl e f or mai nt enance, r epai r and modul e r epl acement f r om t he ext er i or of t he encl osur e. Pr ovi de per manent i dent i f i cat i on t ags f or wi r i ng. Uni quel y i dent i f y each wi r e. Use t he same i dent i f i cat i on syst em i n t he wi r i ng di agr ams i n t he Oper at i on and Mai nt enance Manual . Pr ovi de each encl osur e wi t h a f i ni sh coat over a subst r at e whi ch has been pr ovi ded wi t h a r ust i nhi bi t i ng t r eat ment . Col or must be t he manuf act ur er ' s st andar d col or .

2. 2 MONI TORI NG AND CONTROL

The SFC uni t must be pr ovi ded wi t h a l ocal cont r ol panel and cont r ol l er .

The l ocal cont r ol panel must i ncl ude pr ovi s i ons f or moni t or i ng and cont r ol t o t he Gover nment ' s r emot e HMI syst em.

2. 2. 1 Controller

A cont r ol l er modul e must be i ncl uded t o pr ovi de cont r ol of t he SFC and i nt er f ace t o bot h a l ocal cont r ol panel and Gover nment ' s r emot e HMI syst em used f or cont r ol and moni t or i ng f r om a cent r al cont r ol r oom.

The cont r ol syst em must moni t or t he oper at i on of t he SFC and st or e dat a as wel l as r espondi ng t o t he dat a bei ng moni t or ed. The f ol l owi ng f eat ur es must be i ncl uded:

a. An i nt er nal UPS must be pr ovi ded t hat must al l ow savi ng of i nput r eadi ngs and al ar ms. The syst em must have a capaci t y of at l east 30 minutes.

b. The dat a must be wr i t t en t o nonvol at i l e memor y i n t he event of l oss of power t o t he SFC syst em. Thi s must be t r i gger ed by t he l oss of power

SECTI ON 26 35 43 Page 10 and must happen bef or e t he UPS i s near t he end of i t s bat t er y l i f e

c. When t her e i s a di st ur bance an al ar m or t r i p s i gnal must be sent dependi ng on t he sever i t y of t he condi t i on. An al ar m or t r i p message must be sent t o t he cent r al l ocat i on.

d. Abnor mal condi t i ons t hat may be har mf ul t o t he syst em wi l l cause t he syst em t o shut down and a t i me t agged al ar m t o be gener at ed.

e. An emer gency of f s i gnal may be gener at ed when needed. Thi s s i gnal must i mmedi at el y bl ock t he f i r i ng pul ses t o t he syst em and must send a t r i p s i gnal t o t he i ncomi ng pr ot ect i ve devi ce.

f . A nor mal swi t ch of f s i gnal must be gener at ed t o begi n t he nor mal shut down pr ocedur e. The nor mal shut down pr ocedur e must r amp t he cur r ent down and swi t ch of f t he i ncomi ng br eaker .

g. The syst em t i me must be det er mi ned f r om an ext er nal I RI G B si gnal .

Thi s t i me must be used f or t i me t aggi ng al l event s.

h. An abnor mal condi t i on t hat does not r equi r e t he i mmedi at e shut down of t he syst em must gener at e an al ar m.

i . The nor mal st ar t sequence of t he SFC syst em must be t hr ough t he cont r ol l er . The cont r ol l er must i mpl ement a nor mal st ar t sequence t hat wi l l cont r ol t he i nput c i r cui t br eaker , t he out put c i r cui t br eaker , and t he oper at i on of t he i nt er nal el ect r oni cs. The sequence must mi ni mi ze t he st r ess on t he ci r cui t br eaker s and t he el ect r oni cs as wel l as t he power syst em ext er nal t o t he SFC.

j . The nor mal st op sequence of t he SFC syst em must be t hr ough t he cont r ol l er . The cont r ol l er must i mpl ement a nor mal st op sequence t hat wi l l cont r ol t he i nput c i r cui t br eaker , t he out put c i r cui t br eaker , and t he oper at i on of t he i nt er nal el ect r oni cs. The sequence must mi ni mi ze t he st r ess on t he ci r cui t br eaker s and t he el ect r oni cs as wel l as t he power syst em ext er nal t o t he SFC.

k. Emer gency oper at i on of t he SFC must i ncl ude an emer gency st op t hat wi l l shut down t he SFC i mmedi at el y and t r i p t he i nput and out put c i r cui t br eaker s.

l . The ci r cui t br eaker s wi l l be pr ot ect ed by power syst em r el ays. These r el ays may cause t he ci r cui t br eaker s t o t r i p f or a f aul t condi t i on wi t hout r egar d t o t he oper at i on of t he SFC. I f t hi s event happens t he cont r ol syst em must shut down t he SFC i n t he best way possi bl e gi ven t he r el ay t r i p.

2. 2. 2 Local Cont r ol Panel

A l ocal cont r ol panel must be pr ovi ded. The cont r ol panel must al l ow l ocal cont r ol i nput s and must di spl ay al ar ms as wel l as r eadi ngs of t he SFC par amet er s. The l ocal cont r ol panel must pr ovi de t he i nt er f ace bet ween t he l ocal oper at or and t he cont r ol modul e descr i bed above. Wi r i ng of t he l ocal cont r ol panel t o t he SFC must be i nt er nal and must be compl et ed i n t he f act or y. The i nt ent of t he l ocal cont r ol panel i s t o al l ow emer gency or mai nt enance oper at i on of t he equi pment . The f ol l owi ng must be pr ovi ded f or t he l ocal cont r ol panel :

a. Emer gency of f but t on.

SECTI ON 26 35 43 Page 11

b. St ar t / st op pushbut t ons.

c. Lamp t est - a push t o t est but t on t o t est i ndi cat i ng l i ght s.

d. Al ar m si l ence - a pushbut t on t o s i l ence t he audi bl e al ar m.

e. Al ar m r eset - a pushbut t on t o r eset t he al ar m. I f t he al ar m has cl ear ed i t wi l l be r eset , ot her wi se t he al ar m wi l l r emai n.

f . Local r emot e key swi t ch.

g. Oper at i on i ndi cat i ng l i ght s.

h. Label ed 230 Vac por t f or comput er .

i . Label ed 120 VAC por t f or comput er .

j . Et her net por t f or commi ssi oni ng and ser vi c i ng.

k. +/ - 24 V dc f or ser vi ce and commi ssi oni ng.

2. 2. 3 Remot e Moni t or i ng Syst em

A r emot e moni t or i ng and cont r ol syst em must be pr ovi ded. The syst em must i nt er f ace wi t h t he PCMS cont r ol net wor k as shown on t he dr awi ngs. The i nt er f ace must be vi a an Et her net or f i ber opt i c cabl e connect ed t o t he the Gover nment ' s HMI syst em. The f ol l owi ng al ar m and cont r ol poi nt s must be pr ovi ded:

a. SFC st ar t

b. SFC st op

c. SFC r unni ng st at us

d. SFC r emot e e- st op i ni t i at ed

e. SFC l ocal e- st op i ni t i at ed f . SFC cont r ol l er r emot e st ar t command acknowl edge

g. SFC cont r ol l er e- st op i ni t i at ed command acknowl edge

h. SFC al ar m i . SFC i nput l i ne RMS vol t age A phase t o B phase j . SFC i nput l i ne RMS vol t age B phase t o C phase

k. SFC i nput l i ne RMS vol t age C phase t o A phase l . SFC out put l i ne RMS vol t age A phase t o B phase

m. SFC out put l i ne RMS vol t age B phase t o C phase

n. SFC out put l i ne RMS vol t age C phase t o A phase

o. SFC out put f r equency

SECTI ON 26 35 43 Page 12

p. SFC out put kW ( 3 phase)

q. SFC out put kVAR ( 3 phase)

2. 2. 4 Load Shar i ng

The SFC must be i nt egr at ed i nt o t he ot her cont r ol schemes def i ned i n t hi s speci f i cat i on and i n t he dr awi ngs t o per f or m al l of t he r equi r ed f unct i ons descr i bed her ei n:

a. Under nor mal oper at i ng condi t i ons each SFC must car r y hal f of t he 60 Hz syst em l oad. Si nce t he t wo SFC uni t s ar e not i n par al l el , each uni t must car r y t he por t i on of t he l oad connect ed t o i t s bus.

b. Upon l oss of a s i ngl e SFC out put swi t chi ng must t ake pl ace on t he 60 Hz syst em so t hat t he ent i r e l oad i s ser ved by t he r emai ni ng SFC uni t .

The SFC uni t must be capabl e of car r y i ng t hi s ent i r e l oad up t o i t s capacity.

2. 2. 5 Pr ot ect i ve Devi ces

Pr ot ect i ve devi ces must be pr ovi ded t hat ensur e cor r ect over l oad and f aul t c l ear i ng sequences. I ncl ude r ecommended set t i ngs f or t hese devi ces.

I ncl ude t he pr ot ect i on phi l osophy of t he devi ces and r ecommendat i ons of set t i ngs f or adj ust abl e devi ces.

2. 3 Cooling

The SFC must i ncl ude a c l osed l oop wat er cool i ng syst em t o r emove heat f r om t he SFC. Pr ovi de wat er t o ai r heat exchanger s, wi t h f ans, as a means of cool i ng t he wat er f or t he SFC. The cl osed l oop syst em must r emove, at a mi ni mum, 92 per cent of t he heat gener at ed by t he SFC. The l ayout of t he cool i ng syst em must be coor di nat ed wi t h t he s i t e.

a. The cool i ng syst em must use a c l osed l oop wat er syst em t o pr ovi de cool i ng. The syst em must empl oy a mi xt ur e of wat er and gl ycol t o oper at e at t he l ow t emper at ur es r equi r ed.

b. Pumps must be pr ovi ded t o c i r cul at e t he wat er / gl ycol mi xt ur e. Ther e must be at l east one ext r a pump f or r edundancy.

c. Cool ant must be cont i nuousl y f i l t er ed and condi t i on as r equi r ed t o mai nt ai n wat er qual i t y. Car t r i dges must be f i el d r epl aceabl e wi t hout shut t i ng t he syst em down.

d. Par amet er s of t he cool i ng syst em must be moni t or ed by t he cont r ol uni t of t he SFC. The mi ni mum par amet er t o be moni t or ed i s cool ant conductivity.

e. Tr end super vi s i on of t he moni t or ed par amet er s must be pr ovi ded.

f . Moni t or ed dat a must be avai l abl e f or t r ansmi t t i ng t o t he cent r al cont r ol l ocat i on.

2. 4 SOURCE QUALI TY CONTROL

Har moni c t est i ng must conf or m t o I EC 61000- 4- 7.

SECTI ON 26 35 43 Page 13

2. 4. 1 Equi pment Test Schedul e

The Gover nment wi l l wi t ness t est s. Pr ovi de equi pment t est schedul es f or t est s t o be per f or med at t he manuf act ur er ' s t est f aci l i t y . Submi t r equi r ed t est schedul e and l ocat i on, and not i f y t he Cont r act i ng Of f i cer 30 cal endar days bef or e schedul ed t est dat e. Not i f y Cont r act i ng Of f i cer 15 cal endar days i n advance of changes t o schedul ed dat e.

Test I nst r ument Cal i br at i on

a. The manuf act ur er must have a cal i br at i on pr ogr am whi ch assur es t hat al l appl i cabl e t est i nst r ument s ar e mai nt ai ned wi t hi n r at ed accur acy.

b. The accur acy must be di r ect l y t r aceabl e t o t he Nat i onal I nst i t ut e of St andar ds and Technol ogy.

c. I nst r ument cal i br at i on f r equency schedul e must not exceed 12 mont hs f or bot h t est f l oor i nst r ument s and l eased speci al t y equi pment .

d. Dat ed cal i br at i on l abel s must be vi s i bl e on al l t est equi pment .

e. Cal i br at i ng st andar d must be of hi gher accur acy t han t hat of t he i nst r ument t est ed.

f . Keep up- t o- dat e r ecor ds t hat i ndi cat e dat es and t est r esul t s of i nst r ument s cal i br at ed or t est ed. For i nst r ument s cal i br at ed by t he manuf act ur er on a r out i ne basi s, i n l i eu of t hi r d par t y cal i br at i on, i ncl ude t he f ol l owi ng:

( 1) Mai nt ai n up- t o- dat e i nst r ument cal i br at i on i nst r uct i ons and pr ocedur es f or each t est i nst r ument .

( 2) I dent i f y t he t hi r d par t y/ l abor at or y cal i br at ed i nst r ument t o ver i f y t hat cal i br at i ng st andar d i s met .

2. 4. 2 Rout i ne Test s

Rout i ne t est s must be per f or med by t he manuf act ur er on each SFC pr epar ed f or t hi s pr oj ect t o ensur e t hat t he desi gn per f or mance i s mai nt ai ned i n pr oduct i on. Submi t t est r epor t s of t he ent i r e assembl ed uni t on s i t e.

Addi t i onal l y, each maj or component ( i ncl udi ng conver t er modul es, i nput t r ansf or mer s, and out put t r ansf or mer s) must be t est ed and appr oved by ser i al number pr i or t o del i ver y of equi pment t o t he pr oj ect s i t e. Test s t hat ar e r equi r ed as par t of maj or component t est i ng pr i or t o shi pment ar e mar ked wi t h a ( P) bel ow. These t est s ar e al so r equi r ed f or t he ent i r e assembl y on si t e.

For t est s whi ch r equi r e f ul l l oad, use 1. 0 power f act or unl ess ot her wi se not ed. Al l measur ement s must be t r ue RMS measur ement s. Measur ement s must be obt ai ned i n accor dance wi t h I EEE 1159. Test s must i ncl ude t he following:

a. I nput cur r ent and power f act or ( par t i al l oad) : Oper at e each SFC at nomi nal i nput vol t age at a mi ni mum of 25 per cent of r at ed capaci t y.

Measur e and r ecor d i nput vol t age, i nput power f act or and i nput cur r ent i n each phase and neut r al i f t he neut r al conduct or i s connect ed t o t he conver t er i nput . ( P)

SECTI ON 26 35 43 Page 14

b. I nput cur r ent and power f act or ( f ul l l oad) : Oper at e each SFC at nomi nal i nput vol t age at f ul l l oad. Measur e and r ecor d i nput vol t age, i nput power f act or and i nput cur r ent i n each phase and neut r al i f t he neut r al conduct or i s connect ed t o t he conver t er i nput .

c. Out put vol t age, out put vol t age THD, out put cur r ent , out put power f act or , and vol t age r egul at i on: Oper at e each SFC at nomi nal i nput vol t age f or :

( 1) A mi ni mum l oad of 25 per cent of r at ed capaci t y ( any power f act or bet ween 0. 75 l aggi ng and 1. 0 l i near l oad) . ( P)

( 2) 100 per cent of r at ed capaci t y at a power f act or of appr oxi mat el y

0. 8 l aggi ng and appr oxi mat el y 1. 0. .

d. Ef f i c i ency: Oper at e conver t er modul es, i nput t r ansf or mer s, and t r ansf or mer s at nomi nal i nput vol t age at hal f l oad and f ul l l oad at

1. 0 power f act or . Measur e and r ecor d i nput vol t age, i nput cur r ent , i nput power f act or , out put vol t age, out put cur r ent , and out put power f act or . Cal cul at e t he uni t ef f i c i ency.

e. No l oad l osses: Oper at e al l maj or component s at no l oad and nomi nal i nput vol t age. Measur e and r ecor d i nput vol t age, i nput cur r ent , i nput power , i nput power f act or , and out put vol t age.

f . Bur n- i n Test : Bef or e del i ver y, bBur n- i n al l maj or component s under f ul l l oad condi t i ons f or at l east 24 hour s by cycl i ng uni t s 6 hour s " ON" under f ul l l oad condi t i ons and 3 hour s " OFF" at no l oad condi t i ons f or at l east 4 compl et e " ON" cycl es. Bur n- i n t est must be per f or med wi t h t he conver t er encl osur e door s c l osed and al l vent i l at i on i n t he f i nal oper at i ng condi t i on.

g. I ncl ude har moni c f r equency spect r um anal ysi s depi ct i ng Har moni c Or der and Har moni c Magni t ude at t he uni t ' s i nput and out put t er mi nal s dur i ng f ul l l oad t est i n t est r epor t s.

2. 4. 3 SFC Desi gn Test s

Submi t desi gn t est r epor t s ( compl et e wi t h t est dat a, expl anat i ons, f or mul as, and r esul t s) , i n t he same submi t t al package as t he cat al og dat a and dr awi ngs f or t he speci f i ed SFCs. Addi t i onal l y, " desi gn t est s ar e made onl y on r epr esent at i ve appar at us of basi cal l y t he same desi gn" . Desi gn t est s must have been per f or med pr i or t o t he awar d of t hi s cont r act . Test s must be cer t i f i ed and si gned by a r egi st er ed pr of essi onal engi neer or engi neer s wi t h havi ng an equi val ent r ecogni t i on and exper i ence.

As an opt i on, t he manuf act ur er must t est one uni t at t he same t i me schedul ed f or r out i ne t est s, of each r at i ng and si ze conver t er t o assur e compl i ance wi t h t he speci f i cat i on. For al l t est s whi ch r equi r e f ul l l oad, use 1. 0 power f act or unl ess ot her wi se not ed. The t est s must i ncl ude t he following:

a. Sur ge pr ot ect i on: Appl y i nput sur ges i n accor dance wi t h I EEE C62. 41. 1 and I EEE C62. 41. 2, Locat i on Cat egor y B and moni t or out put . Conduct a mi ni mum of t hr ee consecut i ve successf ul t est s on each uni t l i s t ed.

Conf i r m t her e i s no i nt er r upt i on t o 60 Hz out put power and vol t age st ays wi t hi n speci f i ed r egul at i on t ol er ances. Sur ge pr ot ect i on t est s must be appl i cabl e on al l SFCs ut i l i z i ng same sur ge pr ot ect i on devi ce

SECTI ON 26 35 43 Page 15 by manuf act ur er and par t number r egar dl ess of SFC kVA si ze.

b. I nr ush cur r ent : Af t er appl y i ng power t o t he conver t er , conduct a mi ni mum of t hr ee i nr ush cur r ent t est s at f ul l l oad. Pr ovi de copi es of wavef or m and THD anal ysi s i n t est r epor t .

c. I nput cur r ent di st or t i on: Oper at e at nomi nal i nput vol t age at f ul l l oad. Measur e and r ecor d t he i nput cur r ent THD f or t he cur r ent i n each phase.

d. Over l oad/ over cur r ent : Oper at e at nomi nal i nput vol t age wi t h l oads l i s t ed bel ow:

Per cent of Ful l Load

Time

110 per cent 60 mi nut es

125 per cent 10 seconds

Moni t or out put t o conf i r m t her e i s no 60 Hz power i nt er r upt i on. Af t er mi ni mum oper at i ng t i me i s achi eved, uni t must i nt er r upt out put power .

e. Shor t - c i r cui t : Appl y a bol t ed l i ne- t o- gr ound, bol t ed l i ne- t o- l i ne, and bol t ed t hr ee phase f aul t di r ect l y t o t he out put t er mi nal s of t he uni t . Conduct a mi ni mum of t hr ee consecut i ve successf ul t est s on each uni t . Pr ovi de uni t capabl e of car r y i ng t he f aul t cur r ent unt i l t he i nt egr al syst em pr ot ect i ve devi ces i nt er r upt s t he f aul t wi t h no damage t o t he uni t . Pr ovi de wavef or ms of shor t c i r cui t cur r ent dur i ng shor t c i r cui t t est s.

h. Tr ansi ent r ecover y: Pr ovi de l oad st eps t hat ar e at a mi ni mum, 10% of t he r at ed f ul l l oad. Oper at e at t he f ol l owi ng l oad st eps: Goi ng f r om 0 t o 100 per cent , i n a mi ni mum of 3 l oad st eps and f r om 100 t o 0 per cent i n a mi ni mum of t hr ee l oad st eps. Measur e and r ecor d r ecover y t i me and out put vol t age devi at i on l i mi t s f or each l oad st ep i n each di r ect i on. Pr ovi de r ecor di ngs or di spl ay of out put vol t age dur i ng t r ansi ent r ecover y t est .

PART 3 EXECUTI ON

3. 1 INSTALLATION

I nst al l equi pment and devi ces i n accor dance wi t h manuf act ur er ' s publ i shed i nst r uct i ons and t he wi t h r equi r ement s and r ecommendat i ons of t he NFPA 70 and I EEE C2.

3. 1. 1 Equipment

3. 1. 1. 1 Fl oor Mount ed

Pr ovi de pr oper f l oor mount i ng channel s and i nst al l i n accor dance wi t h t he manuf act ur er ' s dr awi ngs and i nst r uct i ons and as i ndi cat ed. Al i gn, l evel , and bol t or wel d uni t s t o channel s t o al l ow easy wi t hdr awal or i nser t i on of r emovabl e component s and t o per mi t pr oper oper at i on and mai nt enance of

SECTI ON 26 35 43 Page 16 equipment.

3. 1. 2 Grounding

Pr ovi de i n accor dance wi t h Sect i on 33 71 02 UNDERGROUND ELECTRI CAL

DISTRIBUTION.

3. 1. 3 Wi r i ng and Condui t

Pr ovi de i n accor dance wi t h Sect i on 26 20 00 I NTERI OR DI STRI BUTI ON and Sect i on 33 71 02 UNDERGROUND ELECTRI CAL DI STRI BUTI ON.

3. 1. 4 Manuf act ur er ' s Repr esent at i ve

The manuf act ur er ' s r epr esent at i ve must pl ace t he syst em i n oper at i on and make necessar y adj ust ment s t o ensur e opt i mum oper at i on of t he equi pment .

The manuf act ur er ' s r epr esent at i ve must have at l east 2 year s of pr act i cal exper i ence i n t he i nst al l at i on and t est i ng of 50 t o 60 Hz sol i d st at e f r equency conver t er s.

3. 2 FI ELD QUALI TY CONTROL

3. 2. 1 Instruments

Pr ovi de t est i nst r ument s capabl e of measur i ng and r ecor di ng or di spl ayi ng t est dat a at a hi gher r esol ut i on and gr eat er accur acy t han speci f i ed f or t he conver t er ' s per f or mance. The t est i nst r ument s used i n t he f i el d t est s must have cur r ent val i d cal i br at i on st i cker s i ssued by an appr oved cal i br at i on l abor at or y. Ver i f y cal i br at i on and adj ust ment s of conver t er i nst r ument s pr ovi ded pr i or t o f i el d t est s. I nst r ument s must be cal i br at ed f or 50 Hz oper at i on when measur i ng 50 Hz si gnal s and f or 60 Hz oper at i on when measur i ng 60 Hz si gnal s.

3. 2. 2 Per f or mance of Accept ance Checks and Test s

Per f or m i n accor dance wi t h t he manuf act ur er ' s r ecommendat i ons and i ncl ude t he f ol l owi ng vi sual and mechani cal i nspect i ons and el ect r i cal t est s.

3. 2. 2. 1 I ni t i al I nspect i on and Test s

a. Compar e equi pment namepl at e i nf or mat i on wi t h speci f i cat i ons and appr oved shop dr awi ngs.

b. I nspect physi cal and mechani cal condi t i on.

c. I nspect al l bol t ed el ect r i cal connect i ons f or hi gh r esi st ance usi ng l ow- r esi st ance ohmmet er , ver i f y i ng t i ght ness of accessi bl e bol t ed el ect r i cal connect i ons by cal i br at ed t or que- wr ench met hod, or per f or mi ng t her mogr aphi c sur vey.

d. Per f or m speci f i c i nspect i ons and mechani cal t est s as r ecommended by manufacturer.

e. Ver i f y cor r ect equi pment gr oundi ng.

f . Per f or m r esi st ance measur ement s t hr ough al l bol t ed connect i ons wi t h l ow- r esi st ance ohmmet er , i f appl i cabl e.

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3. 2. 2. 2 Per f or mance Test s

Conduct conver t er per f or mance t est s under t he super vi s i on of t he manuf act ur er ' s r epr esent at i ve. Successf ul l y compl et e t he pr el i mi nar y oper at i on, cont r ol and pr ot ect i ve devi ces check pr i or t o per f or mi ng l oad and t r ansi ent t est s. I f t he conver t er f ai l s t o oper at e wi t hi n t he speci f i ed l i mi t s dur i ng any of t he per f or mance t est s t he Cont r act or must di scont i nue t he t est and must make necessar y r epai r s t o cor r ect t he f ai l ur e and r est ar t t est i ng of t he conver t er .

3. 2. 2. 2. 1 Pr el i mi nar y Oper at i on

I nspect t he conver t er and make adj ust ment s necessar y t o assur e pr oper oper at i on i n accor dance wi t h t he manuf act ur er ' s i nst r uct i ons. Oper at e f r equency conver t er at 0, 25, 50, 75, and 100 per cent of r at ed f ul l l oad.

Measur e and r ecor d t he out put vol t age, cur r ent , f r equency, and THD at each l oad. Cal cul at e out put vol t age r egul at i on. Ver i f y conver t er i s oper at i ng wi t hi n speci f i ed l i mi t s at each l oad l evel .

3. 2. 2. 2. 2 Cont r ol and Pr ot ect i ve Devi ce Checks

Oper at e each cont r ol , swi t ch, i nput / out put devi ce t hat i s capabl e of bei ng oper at ed manual l y a mi ni mum of t hr ee t i mes, demonst r at i ng sat i sf act or y oper at i on each t i me. Per f or m oper at i on t est on each pr ot ect i ve devi ce t o ensur e t hat devi ces f unct i ons pr oper l y. Af t er each oper at i on measur e and r ecor d t he conver t er out put f r equency, vol t age and cur r ent . Ver i f y conver t er i s oper at i ng wi t hi n speci f i ed l i mi t s.

3. 2. 2. 2. 3 Load Test

Oper at e each uni t cont i nuousl y a mi ni mum of 2 hour s at 100 per cent r at ed l oad. Measur e and r ecor d t he conver t er out put f r equency, vol t age and cur r ent . Ver i f y conver t er i s oper at i ng wi t hi n speci f i ed l i mi t s. Load t est must be per f or med wi t h t he conver t er door s c l osed.

3. 2. 2. 2. 4 Tr ansi ent Test s

Tr ansi ent r ecover y: Oper at e at t he f ol l owi ng l oad st eps: 0 t o 100 per cent , 0 t o 50 per cent , 100 t o 0 per cent , and 50 t o 0 per cent . Pr ovi de r ecor di ngs or di spl ays of vol t age and f r equency dur i ng each t r ansi ent t est , and i ndi cat e on t he r ecor di ngs and di spl ays t he t i me i nt er val s and accept abl e l i mi t s f or vol t age and f r equency. Repeat each t r ansi ent t est t hr ee t i mes, r ecor d t he r esul t s of each t est . Ver i f y conver t er i s oper at i ng wi t hi n speci f i ed l i mi t s.

3. 2. 2. 2. 4 Har moni c Di st or t i on Test s

Per f or m out put vol t age har moni c di st or t i on t est s at t he out put of t he conver t er t er mi nal s at 0 per cent l oad and 100 per cent l oad at uni t y power f act or . The Cont r act or must pr ovi de t est equi pment and i nst r ument at i on r equi r ed f or t he t est s. Test s must be conduct ed wi t h a di st or t i on anal yzer wi t h t est l eads wi t hi n 3 f eet of t he f r equency conver t er ' s out put t er mi nal s. Test dat a must i ncl ude t ot al har moni c di st or t i on ampl i t udes of al l i ndi v i dual har moni cs pr esent ed i n a spect r um anal ysi s f or mat up t o t he 37t h or der .

3. 2. 2. 2. 5 Gr oundi ng Syst em

a. Vi sual and Mechani cal I nspect i on

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( 1) I nspect gr ound syst em f or compl i ance wi t h cont r act pl ans and specifications.

b. El ect r i cal Test s

( 2) Per f or m gr ound- i mpedance measur ement s ut i l i z i ng t he f al l - of - pot ent i al met hod. On syst ems consi st i ng of i nt er connect ed gr ound r ods, per f or m t est s af t er i nt er connect i ons ar e compl et e.

On syst ems consi st i ng of a s i ngl e gr ound r od per f or m t est s bef or e any wi r e i s connect ed. Take measur ement s i n nor mal l y dr y weat her , not l ess t han 48 hour s af t er r ai nf al l . Use a por t abl e gr ound t est i ng megger i n accor dance wi t h manuf act ur er ' s i nst r uct i ons t o t est each gr ound or gr oup of gr ounds. The i nst r ument must be equi pped wi t h a met er r eadi ng di r ect l y i n ohms or f r act i ons t her eof t o i ndi cat e t he gr ound val ue of t he gr ound r od or gr oundi ng syst ems under t est .

Submi t t he measur ed gr ound r esi st ance of each gr ound r od and gr oundi ng syst em, i ndi cat i ng t he l ocat i on of t he r od and gr oundi ng syst em. I ncl ude t he t est met hod and t est set up ( i . e. , pi n l ocat i on) used t o det er mi ne gr ound r esi st ance and soi l condi t i ons at t he t i me t he measur ement s wer e made.

3. 2. 3 Fol l ow- up Ver i f i cat i on

Upon compl et i on of accept ance checks and t est s, t he Cont r act or must show by demonst r at i on i n ser vi ce t hat c i r cui t s and devi ces ar e i n good oper at i ng condi t i on and pr oper l y per f or mi ng t he i nt ended f unct i on. As an except i on t o r equi r ement s st at ed el sewher e i n t he cont r act , t he Cont r act i ng Of f i cer must be gi ven 5 wor ki ng days advance not i ce of t he dat es and t i mes of checki ng and t est i ng.

3. 3…