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CURRENT IN MULTIPLES OF Ir(Ir=LONG-TIME SETTING x In)
<br /> t0soao --(--i----._.,_�.— _.i..__._ -t-?-,�- p _..,. � .�.4.'� _t (.- IT
<br /> °°mIowa ROLOGICO .. ..
<br /> ,°� r i _... _ — __.. __:?I...am
<br /> CHARACTERISTIC TRIP CURVE NO. N3-5
<br /> saw
<br /> :_..._ !_.law
<br /> . { ;" yi s000 Short-time,Pickup and I2t ON,°Delay.
<br /> Now[.. L....._I_.Y... - - - ——_W� -a 3--j swo Sho
<br /> i_. j_ I_#..._ .; __i. .__ _ $i l ..I.. __. . :..I... _....., ' . _,.: The tirine-.current curve'information is to be Used'
<br /> wee
<br /> �.. i-- - --- Boa
<br /> f ,
<br /> :,.- - _ +- s- {-'�' for purposes Y
<br /> I_. .:I_... ,. , �, .;...._C.;. .,.._.,. _. _._. .._ application ur osesonl .
<br /> L_L_ -s - -! = -- i-- wea
<br /> '°°° .I ..i. Curves apply from-30°C to+60°C ambient
<br /> temperature.
<br /> • ' l i amps
<br /> ! , I ;
<br /> ,500 Notes:
<br /> ;_ �----=-''�-,. ;-;i _ I + ( � 1,There is a thermal-intagin effect that can act
<br /> low! ..y-� � + fi , _ _`.-i-� to shorten the long-time delay.The thermal-
<br /> ' .-- {---r-: ..- 1-i- __�_•��'.___-...'_„"._„ `_:. _ ..
<br /> we;__.fi _: .: --_ __• _ 4..__..;_: _ ; 30o imaging effect comes into play if a current
<br /> i_ _:._.._. ,
<br /> _ " i M above the long-time.delay pickup value exists:
<br /> "
<br /> `.". ' 50° for a time and then is cleared b the tri in of
<br /> � as a downstream device or the,circuit breaker
<br /> Tit :'as
<br /> .`;.._ ,....__:._.;..-!.--. ... .<.., . .itself.A subsequent overload will cause the
<br /> 30°' -' -- _-( `'-' - ---- --- -- --=--'=-{-j-i-#-'-we circuit breaker to tripin a shorter time than -
<br /> ' ' f -'` :.; normal.The amount of time delay_reduction is.'
<br /> :.�. i
<br /> i.
<br /> m3; _:_Y _,j _ 1, l I _ ___ i�_�° amount of time that has elapsed-
<br /> i':-:•$-( ; .._��w ,--. rovers a he _
<br /> ,5g since the previous overload,Approximately 20
<br /> minutes is required between overloads to
<br /> SNORT TIME{ _� I completely reset thermal-imaging.
<br /> PICKUPt'loo
<br /> r ' L T � x'`i = 2.The end of the curve'is determined by the
<br /> 70 t .._F-
<br /> i5 2 210interru tin ratin of the circuit breaker.
<br /> �. P 9 9_-_ 3.With zone-selective interlocking on,short-time
<br /> ___-.-- ... ,' _ -- r: : = :j-,° 'delay utilized and no restraining signal the
<br /> 3 i 4 5 - -
<br /> . _f F : T
<br /> _ -_ Iy.j maximum unrestrained short-time.delay time
<br /> applies regardless of the setting.
<br /> -
<br /> i- i--�----- -= ! - -{ ' 4.Total Cie times shown include the
<br /> —w._
<br /> f...
<br /> -,--- _ : ,$ sponse times of the.trip unit,the.circuit
<br /> breaker opening,and the extinction of the
<br /> <� ,° - Current.
<br /> M L
<br /> s ----=- -••:-- ->= *- - 5.Far.a withstand circuit breaker;instantaneous
<br /> t can be turned OFF.'See 61377 for
<br /> can instantaneous tripcurve.,See 613-10 for
<br /> Z ;-.s._;_ _,.._,..._- ... % ;3; Instantaneous override values.
<br /> W 3 . !. 6.See 613-4 for long-time pickup arid delay trip
<br /> z ;... ...:_;... .. o: i :...; curve.- .
<br /> ( ;-
<br /> ,
<br /> - ,3
<br /> ,
<br /> ,
<br /> ,
<br /> _6 .11 0.4 ON .a
<br /> ?_-iSHORTxTIME _.i...;._I.;.._;...I. •� _ _ .. - -
<br /> _-
<br /> ,SECONDSAT10 ..
<br /> '—
<br /> UNRESTRAINED I - — ..
<br /> ._.SHORT-TIMEE..I_ `0.2ON .. .
<br /> .� - .0
<br /> - E
<br /> .07
<br /> 1
<br /> .06
<br /> .05
<br /> — _ f-- .07
<br /> i �
<br /> .: .. .02 L.....�_._II .02
<br /> 0
<br /> .01
<br /> .. .. ..00e!—�.I2.CYCLE-��.
<br /> :_�_ _� ...I L_:� _.i._....i_i.. W5.
<br /> CURRENT IN MULTIPLES OF Ir'
<br /> (Ir.=_LONG-TIME,SE,TTING x In)
<br /> h id. Sc ne er
<br /> 1o" Electric
<br /> - ... •: Curve N°.06,31Cfq,15
<br /> D�12003
<br />
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