26 13 13 Mvcircuitbreakerswitchgear(Air Insulated,Vacuum,5kv 15kv)

8/13/2019 26 13 13 Mvcircuitbreakerswitchgear(Air Insulated,Vacuum,5kv 15kv)

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SECTION 26 13 13MEDIUM VOLTAGE CIRCUIT BREAKER SWITCHGEAR

METAL-CLAD VACUUM (5 kV - 15 kV)

PART 1 - GENERAL

1.1 SCOPE

A. This section includes medium voltage metal-clad circuit breaker switchgear and its associatedauxiliar e!ui"ment. The e!ui"ment shall consist o# [indoor] [outdoor, non-walk-in] [outdoorShelter-Clad single-aisle walk-In] [outdoor Shelter-Clad common-aisle walk-in]switchgearwith hori$ontal drawout% vacuum circuit breakers.

1.& 'E(ATE) )OC*+E,TS

A. )rawings and general "rovisions o# the Contract% including eneral and Su""lementarConditions a""l to this Section.

1. S*/+0TTA(S

A. Submit sho" drawings and "roduct in#ormation #or a""roval and #inal documentation in the

!uantities listed according to the Conditions o# the Contract. All transmittals shall be identi#iedb "urchaser name% "urchaser location and "urchasers order number.

/. A""roval documents shall include21. eneral arrangement drawing showing dimensioned elevation and #loor "lan% #oundation

details and one-line diagram&. Panel arrangement drawing showing laout o# devices on the "anel doors. Three-line diagrams3. chematics4. ,ame"late engraving drawings5. Electrical bill o# material

C. 6inal documents shall include21. )ocuments listed in 1.7./ above&. 8iring diagrams. 'ecommended s"are "arts list #or start-u" su""ort3. 0nstruction manual

1.3 9*A(0T: ASS*'A,CE

A. +anu#acturer !uali#ications2 The bidder must have at least 14 ears ex"erience inmanu#acturing medium voltage metal-clad switchgear and circuit breakers. The manu#acturer o#the metal-clad switchgear assembl shall also be the manu#acturer o# the circuit breakers.

/. Com"l with re!uirements o# latest revisions o# a""licable industr standards% s"eci#icallincluding the #ollowing21. A,S0;0EEE Coltage Circuit /reakers

3. A,S0;0EEE CE':% STO'AE and =A,)(0,

A. )eliver in convenient shi""ing grou"s. Shi""ing grou"s shall not exceed #i#teen #eet in length.

/. Circuit breakers shall be shi""ed inside their res"ective cells.

C. Aisle #or the outdoor Shelter-Clad single-aisle switchgear shall be shi""ed [disassembled forerection in the field] [factory assembled].

). The accessor cabinet shall be shi""ed attached to the switchgear.

,ovember &?% &71 @Proect ,ameB+edium >oltage +etal-Clad Circuit /reaker Switchgear

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E. /us bars with associated hardware #or connections between shi""ing grou"s shall be shi""edinside one o# the units in which shall be installed.

6. Contractor shall store the e!ui"ment in accordance with manu#acturers recommendations.

. Contractor shall install tem"orar heaters% i# necessar% to "revent condensation during storage.

=. Contractor shall handle and move the switchgear in accordance with manu#acturers

recommendations.

PART 2 - PRODUCTS

&.1 +A,*6ACT*'E'S

A. [The metal-clad switchgear assembly shall be as manufactured by Siemens or approvedeual! "pproved manufacturers are as follows#1. Siemens&. !]

&.& 'AT0,S

A. Sstem con#iguration2 The switchgear shall be suitable #or a""lication in three-"hase% [$% &']

[(% &'], [grounded-neutral] [ungrounded] [high-impedance grounded]sstem./. Electrical ratings2

1. Circuit breaker and switchgear ratings shall be based on [)*" class and "+SIIC./!%0-12/2]or [3constant k"4 ratings and "+SII C./!%0-1222]. The #irst six are+>A class and the second eight are constant kA rated. [Choose one of the 10categories! 5elete the other 1.!]a. [Interrupting class# 6(% )*"

1. )a7imum design voltage 8*9# 0!/$ k*&. Impulse withstand voltage# $% k*. Interrupting current 8I9 at ma7imum design voltage# 62 k"3. *oltage range factor 8:9# 1!604. )a7imum design voltage divided by :# .!;( k*5. Interrupting current 8I:9 at *:# .$ k"


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d. [Interrupting class# (%% )*"1. )a7imum design voltage 8*9# 1( k*&. Impulse withstand voltage# 2( k*. Interrupting current 8I9 at ma7imum design voltage# 1; k"3. *oltage range factor 8:9# 1!.4. )a7imum design voltage divided by :# 11!( k*5. Interrupting current 8I:9 at *:# 6. k"oltage +etal-Clad Circuit /reaker Switchgear

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. [Interrupting class# 0% k"1. )a7imum design voltage 8*9# ;!6( k*&. Impulse withstand voltage# 2( k*. Interrupting current 8I9 at ma7imum design voltage# 0% k"3. *oltage range factor 8:9# 1!%4. Short-time withstand current# 0% k"5. )omentary withstand and closing and latching current# $6 k" rms and

1%0 k" peak]k. [Interrupting class# 6( k"

1. )a7imum design voltage 8*9# 1( k*&. Impulse withstand voltage# 2( k*. Interrupting current 8I9 at ma7imum design voltage# 6( k"3. *oltage range factor 8:9# 1!%4. Short-time withstand current# 6( k"5. )omentary withstand and closing and latching current# .2 k" rms and

$( k" peak]l. [Interrupting class# 0% k"

1. )a7imum design voltage 8*9# 1( k*&. Impulse withstand voltage# 2( k*. Interrupting current 8I9 at ma7imum design voltage# 0% k"

3. *oltage range factor 8:9# 1!%4. Short-time withstand current# 0% k"5. )omentary withstand and closing and latching current# $6 k" rms and

1%0 k" peak]m. [Interrupting class# (% k"

1. )a7imum design voltage 8*9# 1( k*&. Impulse withstand voltage# 2( k*. Interrupting current 8I9 at ma7imum design voltage# (% k"3. *oltage range factor 8:9# 1!%4. Short-time withstand current# (% k"5. )omentary withstand and closing and latching current# /; k" rms and

1.% k" peak]n. [Interrupting class# $. k"

1. )a7imum design voltage 8*9# 1( k*&. Impulse withstand voltage# 2( k*. Interrupting current 8I9 at ma7imum design voltage# $. k"3. *oltage range factor 8:9# 1!%4. Short-time withstand current# $. k"5. )omentary withstand and closing and latching current# 2; k" rms and

1$0 k" peak]&. Circuit breaker rated interru"ting time [five-cycles] [three-cycles].. Switchgear main bus continuous current [16%% "] [6%%% "] [.%%% "] [0%%% "].

&. S80TC=EA' E,E'A( CO,ST'*CT0O,

A. The switchgear enclosure shall be o# metal-clad construction as described in A,S0;0EEEstandards.

/. The switchgear shall be #actor assembled into convenient shi""ing grou"s and tested. Theswitchgear shall be o# a coordinated design so shi""ing grou"s shall be easil connectedtogether at the site into a continuous lineu". ,ecessar shi""ing s"lit connecting busbars%boots and hardware shall be #urnished and shall be attached to the switchgear in thea""roximate locations where the shall be needed.


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C. The switchgear assembl shall consist o# one or more vertical sections% each o# which shallhave a main bus com"artment and two verticall stacked e!ui"ment cells. The cells shall bearranged #or circuit breakers or auxiliar devices or shall be blank as indicated in the detaileds"eci#ication. Each vertical section shall be "rovided with a low voltage devices com"artmentlocated between the u""er and lower cells at the #ront o# the e!ui"ment.

). Each main bus com"artment shall contain co""er bus bars [silver-plated at electrical

connection points] [tin-plated at electrical connection points],three-"hase% three-wire% #ullinsulated with #luidi$ed bed e"ox coating or e!uivalent. Sleeve t"e insulation shall not be"ermitted. /us connection oints shall be insulated with "re#ormed P>C boots held togetherwith nlon hardware #or eas installation and removal during servicing. Co""er bus bars shallbe bead-blasted "rior to a""ling e"ox coating to assure a "ro"er bond between the e"oxand the bus bar% eliminating "artial discharges. Each bus segment shall be individuall high-"otential tested "rior to assembl. Ta"ed oints are not "ermitted exce"t in unusual ointcon#igurations. The ground bus shall be bare [silver-plated] [tin-plated]co""er at least F btwo inches and shall extend the #ull length o# switchgear.

E. Each circuit breaker com"artment shall contain a racking mechanism% circuit breaker o"eratedGnot racking mechanism o"erated automatic shutters and sa#et interlocks.

6. Each circuit breaker cell shall also include2

1. =inged #ront "anel.&. Primar and secondar disconnecting devices.. Control circuit cutout device.3. Terminal blocks% control wiring and control "ower buses.4. +anual latch to retain circuit breaker in withdrawn "osition.5. Side wall mounted sliding t"e secondar disconnects to #acilitate ins"ection o# mating o#

contact #rom the #ront and eas accessibilit #or troubleshooting. Secondar disconnectsusing "lug and socket arrangement with umbilical cord% as well as disconnects not visible#or ins"ection% are not "ermitted.


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(. Enclosure [

wall switches at each access door] [?luorescent aisle lights with low-temperature ballasts, controlled by three-way wall switches at eachaccess door]

. Space heaters in each vertical section, operating at @ rated voltage,si'ed to prevent condensation

3. Aouvers euipped with screens and filters, arranged to permit air

circulation while e7cluding e7terior dust and rodents4. "isle of sufficient width to permit circuit breaker withdrawal,

disassembly and servicing in the aisle5. "isle access doors at each end with outside padlocking provisions

and interior panic bars


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&.3 CO+PO,E,TS

A. 0nstrument trans#ormers2 Com"l with A,S0;0EEE C4Ts2 Secondar voltage rating o# 1&7 > and accurac class o# 7.

with burdens o# 8% K and :. The >Ts shall be mounted on a rollout tra. Each tra mustaccommodate u" to three >Ts% with integrall mounted "rimar #uses. The auxiliar cellshall be e!ui""ed with automatic shutters and grounding #ingers that remove an static

charge #rom the windings be#ore allowing o"erator access to the >Ts.&. Current trans#ormers GCTs2 'atios as indicated burden and accurac class as "er

A,S0% suitable #or connected relas% meters and instruments. The CTs shall be bushingmounted. Each circuit breaker bushing shall be able to accommodate two standardaccurac CTs or one high accurac CT. The CT secondar wiring shall be connected toshorting terminal blocks with ring tongue terminations.

. AC control "ower shall be #urnished #rom2 [


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#. The relas shall have "rogrammable logic ca"abilities to "ermit use in "rotectionand control sstems. Programming so#tware must be com"liant with 0EC 5111standard #or P(C "rogramming.

g. The relas shall have a modular communications "rocessor to "ermit #ield changebetween +odbus 'T*% Pro#ibus-)P% Pro#ibus-6+S% ),P.7% 0EC 57D


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characteristic standards per IC, I, even if deployed in harsh dustyenvironments!

i. The relays must provide 6% fle7ible functions that shall be used to createadditional protection functions to ma7imi'e application fle7ibility!]

3. [?eeder protection F motor protection with communicationsa. The relays shall be Siemens /S:;% protective relay or euivalent! The relays

shall provide the following protection functions# (%(1, (%+(1+, $/+, $/+s,(%+s, (2+$0, ./, 0;, $$, 10, (1), 02, 0$, 6/, (2, ;1=, (%B?, 0$ and 0/!

b. The relays shall have five DT5 inputs!c. The relays shall have the option to connect 16 additional DT5 inputs through

an thernet connection!d. The relays shall provide trip circuit supervision of the feeder circuit breaker

and alarm on trip circuit failure!e. The relays shall be capable of being used in a reverse 8'one9 interlocking

bus protection scheme!#. The relays shall provide logic programmability to create starting schemes!

?or e7ample, reduced voltage starting!g. The relays shall provide logic programmability to create failsafe tripping

logic!h. The relays shall have nine programmable function keys to replace control

switches!i. The relays shall have programmable logic capabilities to permit use in

protection and control systems!


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. 6our minimum s"are auxiliar contacts shall be "rovided. Additional contacts shall be"rovided on the cell wall as s"eci#ied.

3. O"erating mechanism shall be electricall charged% mechanicall and electricall tri"-#reeand stored-energ o"erated.

4. Closing velocit o# moving contacts shall be inde"endent o# both control voltage level ando"erator.

5. )esign o# mechanism shall "ermit manual charging o# mechanism.acuum interru"ters and circuit breaker shall be manu#actured and warranted b thesame manu#acturer.

13. >acuum interru"ter design shall limit the cho""ing currents to below 4 A to obviate theneed #or surge "rotection against switching transients during #ault interru"tion #or mostloads. Surge limiters shall be "rovided #or #eeders to motors having locked rotor currento# less than 577 A.

/. The circuit breakers shall be #loor rollout that "ermits convenient insertion and withdrawal o# thevacuum circuit breakers in the lower cells Go# switchgear not on a raised "ad without the use o#li#t truck% ram" or doll.

C. Circuit breakers o# e!ual ratings shall be interchangeable #or the u""er and lower cells.

). [?or (% k" or lower ratings, the vacuum circuit breakers shall be designed to be used inswitchgear cells of the same design and short-circuit rating but different voltage orcontinuous ratings, as long as the voltage and continuous current ratings of the circuitbreaker shall be eual to or higher than reuired by the cell! 6%%% " and .%%% " circuitbreakers shall be designed to be used in 16%% " cells!]

E. [?or $. k" rating, the vacuum circuit breakers shall be designed to be used inswitchgear cells of the same design and short-circuit rating but different voltage orcontinuous ratings, as long as the voltage and continuous current ratings of the circuitbreaker shall be eual to or higher than reuired by the cell! 6%%% " and .%%% " circuit

breakers shall be designed to be used in 16%% " cells!]6. 0t shall be "ossible to test the circuit breaker in the MTestH "osition inside the cell without the use

o# additional cables or cou"lers.

. The switchgear manu#acturer shall ccle each circuit breaker through at least &77 mechanicalon-o## o"erations as a "art o# routine "roduction tests.

&.5 ACCESSO'0ES

A. +anual racking crank.


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/. +anual s"ring charging crank.

C. [Circuit breaker test cabinet separately mounted and containing pushbuttons for circuitbreaker closing and tripping, fuses and secondary coupler with cable appro7imately 2feet long!]

). [Secondary test coupler to permit testing of circuit breaker outside the assembly!]

E. [Circuit breaker lift truck for removing circuit breakers from the upper cells!]

6. [Aift sling!]

. [lectric racking motor assembly and control station!]

=. [?ifth wheel device for convenient handling of circuit breakers!]

0. [Si7 spare fuses of each type and rating of fuse used! Include spares for voltagetransformer fuses and control power fuses!]

I. [=ne spare indicating lamp of each type installed!]

J. [@ pint of touchup paint matching enclosure finish!]

(. Contact lubricant.

+. [Ground and test device [for (% k" or lower ratings], manually operated, suitable forphasing out, testing and grounding switchgear bus or feeder when the device is installedin place of circuit breaker shall include the following#1. Si7 primary disconnect studs!&. electrically operated!

&. Demote-control station with [.%] [0%] [(%] foot long coupler cable!

. Suitable interlocks to facilitate safe procedures!

3. Test wells arranged to allow testing for presence of voltage on each of the $disconnects!

4. Two devices shall be furnished, one for grounding the upper terminals and one forgrounding the lower terminals through the power operated ground making switch!]

5. [=ptional - Ground and test device shall have interrupting capacity eual to that ofthe circuit breakers for which it is substituted!]

PART 3 - EXECUTION

.1 0,STA((AT0O,

A. eneral2 Electrical contractor or switchgear installer shall install switchgear in accordance withmanu#acturers written instructions and the #ollowing s"eci#ications.


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.& A)I*ST+E,TS A,) C(EA,0,

A. 'emove debris #rom switchgear and wi"e dust and dirt #rom all com"onents.

/. 'e"aint marred and scratched sur#aces with touch u" "aint to match original #inish.

. TEST0,

A. Check tightness o# all accessible mechanical and electrical connections to assure the aretor!ued to the minimum acce"table manu#actures recommendations.

/. Check all installed switchgear #or "ro"er grounding% #astening and alignment.

.3 8A''A,T:

A. E!ui"ment manu#acturer shall warrant that all goods su""lied are #ree o# non-con#ormities inworkmanshi" and materials #or one ear #rom date o# initial o"eration% but not more than 1Dmonths #rom date o# shi"ment.

.4 STA'T-*P SE'>0CE

A. Switchgear manu#acturer shall "rovide a #actor-authori$ed service re"resentative #or a "eriodo# two das to train OwnerNs maintenance "ersonnel in the #ollowing21. Procedures and schedules related to startu" and shutdown% troubleshooting% servicing

and "reventive maintenance.&. 'eview data in the maintenance manuals. 'e#er to )ivision 1 Section [HContract

closeout!H] [H=peration and maintenance data!H]. Schedule training with Owner with at least three weeks advance notice.

.5 [?IA5 SD*IC

A. Switchgear manufacturers own field service office 8same name as the manufacturer9shall be located not more than a three hour drive from the installation site!]

END O SECTION


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26 13 13 Mvcircuitbreakerswitchgear(Air Insulated,Vacuum,5kv 15kv)