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469 Guideform SpecificationsNovember 27, 2005

NOTE TO SPECIFIER:For more information on this product visit the GE Multilin Web Site from a product brochure athttp!!"""#$eindustrial#com!products!brochures!%&'#pdf

(he motor mana$ement rela) shall provide primar) protection and mana$ement to mediumvolta$e, medium to lar$e motors# (he rela) shall be e*uipped "ith the follo"in$ protectionfunctions#

Motor (hermal +verload Model %'-

o .nclude /5 standard overload curves, a custom curve feature, and a curve specificall)

desi$ned for the startin$ of hi$h inertia loads, "hen the acceleration time eceeds thesafe stall time#

o 1 second overload curve selection shall be provided for t"ospeed motors#

o (he stator protective thermal model shall combine inputs from positive and ne$ative

se*uence currents and 3(4 "indin$ feedbac# (his "ill then cause the model to

become d)namic in nature in order to follo" the loadin$ and temperature of themotor#

o Motor coolin$ time constants

o 3otor protection durin$ stall and acceleration# (o achieve this the stall!acceleration

curve shall be volta$e compensated and a speed s"itch input shall be available#

(he rela) shall detect $round faults or earth leaa$e currents as lo" as 0#25 1 usin$ a

500#025 Ground 6(#

(he rela) shall incorporate four % to 20 m1 analo$ inputs to be used for trippin$ and

alarmin$ on an) transducer input such as vibration, pressure, flo", etc#

se phase and ne$ativese*uence current heatin$ to calculate motor thermal capacit)

durin$ startin$ and runnin$ states

Settable motorstopped and motor runnin$ coolin$ time constants

8hase and residual overcurrent elements 508!50G-

Ne$ative se*uence unbalance! sin$le phase biasin$ %&-

9oadloss undercurrent- :7-

Mechanical ;am %/00 +hm 8latinum?,

>/20 +hm Nicel?, >/00 +hm Nicel?, or >/0 +hm 6opper?

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o (he motor rela) shall incorporate the 3(4 inputs to support the follo"in$

(hermal overload model biasin$

(emperature alarms and trips %'!:

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(he rela) shall be capable of protectin$ the motor durin$ the entire startin$ process in 3educe=olta$e startin$ applications#

(he rela) shall provide complete monitorin$ and meterin$ functions# (hese shall include

6urrent 8hasors, 3MS =alues of per 8hase, 1vera$e, Motor 9oad, 6urrent nbalance,

Ground, 4ifferential 6urrents =olta$e 8hasors, 3MS =alues of 8hase8hase and 8haseNeutral, 1vera$e =olta$e

Fre*uenc)

(emperature of each 3(4 .nputs

Motor Speed 38M-

8o"er 8o"er Factor, (hree phase 3eal ", hp-, 3eactive var-, 1pparent va- 8o"er

Ener$) Watthours, =arhours

(or*ue Nm-

4emand 3ollin$ 4emand method, time interval, pro$rammed to 5 to '0 min in steps of /

minute

1n event recorder "ith a record of the last 25& events, time ta$$ed "ith a resolution of /0ms#

(he "aveform capture feature is similar to a transient!fault recorder# (he rela) shall stora$e

of up to &% c)cles of data, captured for 8hase 1, @, and 6 currents .a, .b, and .c-,4ifferential 1, @, and 6 currents .diffa, .diffb, and .diffc-, Ground currents .$-, 8hase 1N, @N, and 6N volta$es =an, =bn, and =cn- for ")e connections, 8hase 1@ and @6 =ab and=bc- for opendelta connections

(he rela) shall be able to provide data in the form of trendin$ or data lo$$er, samplin$ and

recordin$ up to ei$ht actual values at an interval defined b) the user# Several parametersshall be trended and $raphed at samplin$ periods ran$in$ from / second up to / hour# (heparameters "hich can be trended b) the Setup soft"are shall be 8hase 6urrents 1, @, and6, and 1vera$e 8hase 6urrent, Motor 9oad, 6urrent nbalance, Ground 6urrent,4ifferential 6urrents 1, @, and 6, S)stem Fre*uenc), =olta$es =ab, =bc, =ca =an, =bn B

=cn, 8o"er Factor, 3eal W or hp- 3eactive var-, and 1pparent =1- 8o"er, 8ositiveWatthours, 8ositive and Ne$ative =arhours, (or*ue, Cottest Stator 3(4, (hermal 6apacit)sed, 3(4s / throu$h /2 temperature, 6urrent 4emand, 8o"er 4emand 1ctive, 3eactiveB 1pparent-, 1nalo$ .nputs /, 2, :, and %, (achometer

(he rela) shall include four % to 20 m1 or 0 to / m1 as specified "ith order- transducer

outputs that ma) be assi$ned to an) measured parameter# (he ran$e of these outputs shallbe scalable#

9atest trip report containin$ date and time, cause, phase, $round, sensitive $round, and

differential currents, motor load, current unbalance, speed, 9ine9ine and 9ine$roundvolta$es, hottest 3(4s, s)stem fre*uenc), real, reactive and apparent po"er, po"er factor,and analo$ .nputs

1larm status information reflectin$ 1larm Name as pro$rammed and status#

Start bloc timer status includin$ overload locout, start inhibit, starts per hour, time bet"een

starts, and restart bloc

(he rela) shall provide comprehensive statistical data and learned information, as follo"s

9earned .nformation

(his data shall be accumulated based on the last five starts#o 1cceleration time

o Startin$ current

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o (hermal capacit) re*uired durin$ motor starts

o 9ast startin$ current, last acceleration time, last startin$ thermal capacit)

o 1vera$e motor load

o 3(4 maimums for each 3(4

o 1nalo$ .nputs minimums and maimums

8reventive Maintenance .nformation

o (he rela) shall eep count of number of trips b) t)peo Number of motor starts or start attempts

o Number of Emer$enc) 3estarts

o Number of starter operations performed over time

o 4i$ital 6ounter via one of the pro$rammable di$ital inputs

o Motor runnin$ hours

o Start per hour

o (ime bet"een starts

(he rela) shall have starter!breaer monitorin$ inputs for the detection of a failed circuit

re$ardless of the starter!breaer state

(he rela) shall have the capabilit) to displa) up to 5 user pro$rammable tet messa$es

nder normal conditions, if no front panel activit) is detected "ithin a settable time, the

screen shall se*uentiall) displa) up to :0 default messa$es# 1n) actual value or setpointmessa$e shall be selectable for default displa)

ser interfaces shall include

1 lar$e %0 character displa), navi$ation e)s, and a e)pad

.ndicator 9E4s on the front panel "hich shall provide a *uic visual indication of status

1 front panel 3S2:2 serial port that shall provide eas) computer access# (he

communications protocol shall be Modbus 3(

("o rear 3S%

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Militar) specifications M.9.%&05