Micrologic Conol unis.0 and 5.0 Low Volage Producs User manual We do more wih eleciciy.
Micrologic Conol unis.0 and 5.0 Discovering your conol uni Idenifying your conol uni Overview of funcions 4 Seing your conol uni 6 Seing procedure 6 Seing he Micrologic.0 conol uni 7 Seing he Micrologic 5.0 conol uni 8 Tesing he conol uni 9 Technical appendix 0 Tripping curves 0 Changing he long-ime raing plug Thermal memory Micrologic.0, 5.0
insananeous seing shor ime seing delay insananeous Discovering your conol uni Idenifying your conol uni Designaions All Compac NS800-300 and Maserpac NT and NW circui breakers are equipped wih a Micrologic conol uni ha can be changed on sie. Conol unis are designed o proec power circuis and conneced loads. E566B Micrologic.0: basic proecion Micrologic.0 E535A E5450A Micrologic.0 A X Y X: ype of proecion c for basic proecion c 5 for selecive proecion c 6 for selecive + earh-faul proecion c 7 for selecive + earh-leakage proecion. Z E5353A.7.8.9 4 8.6.95 6.98 0.4 a 6 4 3 4 5 6 8 0 x 0 I Long ime + Insananeous Micrologic 5.0: selecive proecion Micrologic 5.0 E5354A Y: version number Idenificaion of he conol-uni generaion. "0" signifies he firs generaion. Z: ype of measuremen c A for "ammeer" c P for "power meer" c H for "harmonic meer" c no indicaion = no measuremens..6.95.98.4 3 4 56 8 0 x 4 8 6 0 a 6 4 sd.4.4.3.. on I.3.. 0 I i 6 8 0 4 3 5 off 0 Ii I Long ime + Shor ime + Insananeous Micrologic.0, 5.0
Presenaion op fasener boom fasener 3 proecive cover 4 cover opening poin 5 lead-seal fixure for proecive cover 6 long-ime raing plug 7 screw for long-ime raing plug 8 connecion wih circui breaker E5355B Micrologic.0 E5356A 7 5.7.8.9 4 8.6.95 6.98 0.4 4 @ 6 6 3 4 8 Adjusmen dials 9 long-ime curren seing 0 long-ime ipping delay shor-ime pickup shor-ime ipping delay sd 3 insananeous pick-up 4 insananeous pick-up Ii 5 LED indicaing an overload 6 es connecor E5357A Micrologic.0 Micrologic 5.0 5 5 9 0 3.6.95.98.4 insananeous 3 4 5 6 8 0 x seing 4 8 6 0 a 6 4 7 5 6 9 0 4.7.8.9 4 8.6.95 6.98 0.4 a 6 4 shor ime 3 4 56 8 0 x seing sd.4.4.3.. on I delay.3.. 0 off insananeous I i 6 8 0 4 3 5 off 7 5 6 3 Micrologic.0, 5.0
Discovering your conol uni Overview of funcions Curren proecion Proecion seings Depending on he ype of insallaion, i is possible o se he ipping curve of your conol uni using he parameers presened below. E5358A Micrologic.0 0 I 3. curren seing (). ipping delay () for 6 x 3. pick-up (insananeous) E5359A Micrologic 5.0 3 0 Ii I 4 I on I off 5. curren seing (). ipping delay () for 6 x 3. pick-up (shor ime) 4. ipping delay sd (shor ime) 5. pick-up Ii (insananeous) Long-ime proecion The long-ime proecion funcion proecs cables (phases and neual) agains overloads. This funcion is based on ue rms measuremens. Thermal memory The hermal memory coninuously accouns for he amoun of hea in he cables, boh before and afer ipping, whaever he value of he curren (presence of an overload or no). The hermal memory opimises he long-ime proecion funcion of he circui breaker by aking ino accoun he emperaure rise in he cables. The hermal memory assumes a cable cooling ime of approximaely 5 minues. Micrologic conol uni Accuracy.0 and 5.0 Long-ime curren seing and sandard ipping delay curren seing = In (*) x 0.4 0 0.6 0.7 0.8 0.9 0.95 0.98 ipping beweeen.05 and.0 oher ranges or disable by changing raing plug ime seing 0,5 4 8 6 0 4 ime delay a x 0 o - 30% 5 50 00 00 300 400 500 600 a 6 x 0 o - 0% 0.7 () 4 8 6 0 4 a 7. x 0 o - 0% 0.7 () 0.69.38.7 5 8.3 3.8 6.6 (*) In: circui breaker raing () 0 o - 40% () 0 o - 60% Seing accuracy of he seing may be enhanced by using a differen long-ime raing plug. See he echnical appendix "Changing he long-ime raing plug". Overload LED E5360A.6.95.98.4 E536A 4 8 6.6.95 0.98 4.4 a 6 4 8 6 0 a 6 4 insananeous 3 4 5 6 8 0 x seing shor ime 3 4 5 6 8 0 x seing sd.4.4.3.3.... on I 0 off delay insananeous I i 6 8 0 4 3 5 off This LED signals ha he long-ime curren seing has been overrun. 4 Micrologic.0, 5.0
Shor-ime proecion c he shor-ime proecion funcion proecs he disibuion sysem agains impedan shor-circuis. c he shor-ime ipping delay can be used o ensure discriminaion wih a downseam circui breaker. c his funcion carries ou ue rms measuremens. c he I ON and I OFF opions enhance discriminaion wih downseam proecion devices. c use of I curves wih shor-ime proecion: v I OFF seleced: he proecion funcion implemens a consan ime curve v I ON seleced: he proecion funcion implemens an I inverse-ime curve up o 0. Above 0, he ime curve is consan. Shor-ime pick-up and ipping delay sd Micrologic conol uni.0 and 5.0 pick-up = x accuracy ± 0% 3 4 5 6 8 0 ime delay (ms) seing I Off 0 0. 0. 0.3 0.4 a 0 I On 0. 0. 0.3 0.4 I On or sd (max reseable ime) 0 80 40 30 350 I Off sd (max break ime) 80 40 00 30 500 Insananeous proecion c he insananeous-proecion funcion proecs he disibuion sysem agains solid shor-circuis. Conary o he shor-ime proecion funcion, he ipping delay for insananeous proecion is no adjusable. The ipping order is sen o he circui breaker as soon as curren exceeds he se value, wih a fixed ime delay of 0 milliseconds. c his funcion carries ou ue rms measuremens. Insananeous pick-up Micrologic conol uni.0 pick-up = x... accuracy ± 0 % 3 4 5 6 8 0 ime delay (ms) sd (max reseable ime) 0 sd (max break ime) 80 Insananeous pick-up Ii Micrologic conol uni 5.0 pick-up li = In (*) x accuracy ± 0 % 3 4 6 8 0 5 OFF ime delay (ms) sd (max reseable ime) 0 sd (max break ime) 50 (*) In: circui-breaker raing Neual proecion on four-pole circui breakers Proecion of he neual conducor depends on he disibuion sysem. There are hree possibiliies: Type of neual Neual unproeced Neual proecion a 0 In Neual proecion a In Descripion The disibuion sysem does no require proecion of he neual conducor. The cross-secional area of he neual conducor is half ha of he phase conducors. c he long-ime curren seing for he neual is equal o half he seing value c he shor-ime pick-up for he neual is equal o half he seing value c he insananeous pick-up (Micrologic.0) for he neual is equal o half he seing value c he insananeous pick-up Ii (Micrologic 5.0) for he neual is equal o he seing value The cross-secional area of he neual conducor is equal o ha of he phase conducors. c he long-ime curren seing for he neual is equal o he seing value c he shor-ime pick-up for he neual is equal o he seing value c he insananeous pick-ups and Ii for he neual are equal o he seing value 5 Micrologic.0, 5.0
Seing your conol uni Seing procedure Cauion! Wih he 4P 3D seing, he curren in he neual mus no exceed he raed curren of he circui breaker. E5383A Selecing he ype of neual proecion On four-pole circui breakers, i is possible o selec he ype of neual proecion using he hree-posiion swich: 3D+N/ 4P 3D 4P 4D c neual unproeced (4P 3D) c neual proecion a 0 In (3D + N/) c neual proecion a In (4P 4D). Seing procedure Using he adjusmen dials E5363A E5364A E5365A Micrologic.0 Micrologic.0 Micrologic.0 3 Open he proecive cover. Selec he desired seing. Close he proecive cover and, if necessary, insall a lead seal o proec he seings. 6 Micrologic.0, 5.0
Seing he Micrologic.0 conol uni The raing of he circui breaker in his example is 000 A. E5366A In = 000 A In = 000 A See pages 4 and 5 for informaion on he available seings. Se he hreshold values E60365A.6.95.98.4 In = 000 A = 0.7 = 400 A = 3 x = 400 A E5368A insananeous 3 4 5 6 8 0 x seing 0 I Se he ipping delay E60366A 4 8 6 0 a 6 4 = second E5370A 0 I 7 Micrologic.0, 5.0
Seing your conol uni Seing he Micrologic 5.0 conol uni See pages 4 and 5 for informaion on he available seings. Se he hreshold values E60367A.6.95.98.4 shor ime 3 4 5 6 8 0 x seing insananeous I i 6 8 0 4 3 5 off In = 000 A = 0.7 = 400 A = x = 800 A Ii = 3 = 6000 A E537A I OFF curve Ii 0 I E5373A I ON curve Ii 0 I Se he ipping delay E60368A 4 8 6 0 a 6 4 = second sd = 0. seconds E5375A I OFF curve E5376A I ON curve shor ime sd.4.4.3.. on I delay.3.. 0 I on I off sd 0 I sd 0 I 8 Micrologic.0, 5.0
Tesing he conol uni See he user manual for he porable es ki. To es he conol uni, connec he porable es ki via he es connecor E5363A E5377A Micrologic.0 Micrologic.0 9 Micrologic.0, 5.0
Technical appendix Tripping curves Long-ime and insananeous proecion - Micrologic.0 E60369A 0 000 5 000 = 0.4 000 000 500 00 00 50 = 0 4 s 0 0 5...05.0.0.005 = 0 x.00.00.7 3 4 5 7 0 0 30 50 70 00 00 300 I / Long-ime, shor-ime and insananeous proecion - Micrologic 5.0 E60370B 0 000 5 000 = 0.4 000 000 500 00 00 50 = 0 4 s 0 0 5...05 0.4 0.3 0. 0. 0 I ON I OFF 0.4 0.3 0. 0. 0 = 0 x.0.0.005 Ii = 5. OFF.00.00.7 3 4 5 7 0 0 3 5 7 0 0 30 x 0 Micrologic.0, 5.0
.6.4 6 0.6.4 6 0 Changing he long-ime raing plug Selec he long-ime raing plug A number of seing ranges for he long-ime curren seing are available on Micrologic.0 and 5.0 conol unis by changing he long-ime raing plug. The available raing plugs are lised below: Par number Seing range for he value 3354 sandard 0.4 o x 33543 low seing 0.4 o 0.8 x 33544 high seing 0.8 o x 33545 wihou long-ime proecion = In for he shor-ime proecion seing Cauion. Following any modificaions o he long-ime raing plug, all conol-uni proecion parameers mus be checked. Change he long-ime raing plug Proceed in he following manner.. Open he circui breaker.. Open he proecive cover of he conol uni. 3. Compleely remove he longime raing plug screw. E5483A E5484A If no long-ime raing plug is insalled, he conol uni coninues o operae under he following downgraded condiions: c he long-ime curren seing is 0.4, whaever he posiion of he adjusmen dial c he long-ime ipping delay corresponds o he value indicaed by he adjusmen dial. E5485A 4. Snap ou he raing plug. 5. Clip in he new raing plug. E5486A.95.98 4 8 @ 6 4.95.98 4 8 @ 6 4 6. Refi he screw for he long-ime raing plug. 7. Check and/or modify he conol-uni seings Micrologic.0, 5.0
Technical appendix Thermal memory Thermal memory The hermal memory is a means o simulae emperaure rise and cooling caused by changes in he flow of curren in he conducors. These changes may be caused by: c repeiive moor saring; c loads flucuaing near he proecion seings; c repeaed circui-breaker closing on a faul. Conol unis wihou a hermal memory (conary o bimeal sip hermal proecion) do no reac o he above ypes of overloads because hey do no las long enough o cause ipping. However, each overload produces a emperaure rise and he cumulaive effec can lead o dangerous overheaing. Conol unis wih a hermal memory record he emperaure rise caused by each overload. Even very shor overloads produce a emperaure rise ha is sored in he memory. This informaion sored in he hermal memory reduces he ipping ime. Micrologic conol unis and hermal memory All Micrologic conol unis are equipped as sandard wih a hermal memory. c for all proecion funcions, prior o ipping, he emperaure-rise and cooling ime consans are equal and depend on he ipping delay in quesion: v if he ipping delay is shor, he ime consan is low; v if he ipping delay is long, he ime consan is high. c for long-ime proecion, following ipping, he cooling curve is simulaed by he conol uni. Closing of he circui breaker prior o he end of he ime consan (approximaely 5 minues) reduces he ipping ime indicaed in he ipping curves. Shor-ime proecion and inermien fauls For he shor-ime proecion funcion, inermien currens ha do no provoke ipping are sored in he Micrologic memory. This informaion is equivalen o he long-ime hermal memory and reduces he ipping delay for he shor-ime proecion. Following a ip, he shor-ime sd ipping delay is reduced o he value of he minimum seing for 0 seconds. Micrologic.0, 5.0
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