CJ: Kodi ya kampani
M: Chotsukira ma circuit cha bokosi lopangidwa
1: Nambala ya Kapangidwe
□:Mawonekedwe amakono a chimango
□:Kutha kusweka kwa mphamvu/khodi ya khalidwe/S imasonyeza mtundu wokhazikika (S ikhoza kuchotsedwa)H imasonyeza mtundu wapamwamba
Dziwani: Pali mitundu inayi ya pole yosagwirizana (pole ya N) ya zinthu zinayi. Pole yosagwirizana ya mtundu wa A ilibe chotchinga chamagetsi chopitirira muyeso, nthawi zonse imayatsidwa, ndipo simayatsidwa kapena kuzimitsidwa pamodzi ndi pole zina zitatu.
Mzati wa mtundu wa B wopanda mphamvu uli ndi chinthu chogwetsa mphamvu zambiri, ndipo umayatsidwa kapena kuzimitsidwa pamodzi ndi zipilala zina zitatu (mzati wa neutral umayatsidwa usanazimitsidwe) Mzati wa neutral wa mtundu wa C uli ndi chinthu chogwetsa mphamvu zambiri, ndipo umayatsidwa kapena kuzimitsidwa pamodzi ndi zipilala zina zitatu (mzati wa neutral umayatsidwa usanazimitsidwe) Mzati wa neutral wa mtundu wa D uli ndi chinthu chogwetsa mphamvu zambiri, nthawi zonse umayatsidwa ndipo suyatsidwa kapena kuzimitsidwa pamodzi ndi zipilala zina zitatu.
| Dzina la zowonjezera | Kutulutsa kwamagetsi | Kutulutsa kwapawiri | ||||||
| Kulumikizana kothandiza, kutulutsidwa kwa magetsi, kukhudzana ndi alamu | 287 | 378 | ||||||
| Ma seti awiri othandizira olumikizirana, kulumikizana ndi alamu | 268 | 368 | ||||||
| Kutulutsa kwa Shunt, kulumikizana ndi alamu, kulumikizana kothandizira | 238 | 348 | ||||||
| Kutulutsa kwamagetsi, kukhudzana ndi alamu | 248 | 338 | ||||||
| Alamu yothandizira yolumikizirana | 228 | 328 | ||||||
| Kulumikizana ndi alamu yotulutsa Shunt | 218 | 318 | ||||||
| Kutulutsa kwa under-voltage yothandizira | 270 | 370 | ||||||
| Ma seti awiri othandizira olumikizirana | 260 | 360 | ||||||
| Kutulutsa kwa Shunt pansi pa voltage | 250 | 350 | ||||||
| Kulumikizana kothandizira kwa Shunt kumasula | 240 | 340 | ||||||
| Kutulutsa kwapansi pa mphamvu | 230 | 330 | ||||||
| Kulumikizana kothandiza | 220 | 320 | ||||||
| Kutulutsidwa kwa Shunt | 210 | 310 | ||||||
| Kulumikizana ndi alamu | 208 | 308 | ||||||
| Palibe chowonjezera | 200 | 300 | ||||||
| 1 Mtengo wovomerezeka wa ma circuit breaker | ||||||||
| Chitsanzo | Imax (A) | Mafotokozedwe (A) | Voltage Yogwira Ntchito Yoyesedwa (V) | Voltage Yotetezedwa Yoteteza (V) | Icu (kA) | Ma Ics (kA) | Chiwerengero cha Ndodo (P) | Mtunda Wozungulira (mm) |
| CJMM1-63S | 63 | 6,10,16,20 25,32,40, 50,63 | 400 | 500 | 10* | 5* | 3 | ≤50 |
| CJMM1-63H | 63 | 400 | 500 | 15* | 10* | 3,4 | ||
| CJMM1-100S | 100 | 16,20,25,32 40,50,63, 80,100 | 690 | 800 | 35/10 | 22/5 | 3 | ≤50 |
| CJMM1-100H | 100 | 400 | 800 | 50 | 35 | 2, 3, 4 | ||
| CJMM1-225S | 225 | 100,125, 160,180, 200,225 | 690 | 800 | 35/10 | 25/5 | 3 | ≤50 |
| CJMM1-225H | 225 | 400 | 800 | 50 | 35 | 2, 3, 4 | ||
| CJMM1-400S | 400 | 225,250, 315,350, 400 | 690 | 800 | 50/15 | 35/8 | 3,4 | ≤100 |
| CJMM1-400H | 400 | 400 | 800 | 65 | 35 | 3 | ||
| CJMM1-630S | 630 | 400,500, 630 | 690 | 800 | 50/15 | 35/8 | 3,4 | ≤100 |
| CJMM1-630H | 630 | 400 | 800 | 65 | 45 | 3 | ||
| Zindikirani: Pamene magawo oyesera a 400V atsegulidwa, 6A popanda kutulutsidwa kwa kutentha | ||||||||
| 2 Kusinthasintha kwa nthawi yogwirira ntchito pamene mtengo uliwonse wa kutulutsidwa kwa overcurrent kuti ugawidwe mphamvu umayatsidwa nthawi imodzi | ||||||||
| Chinthu choyesedwa Current (I/In) | Malo a nthawi yoyesera | Mkhalidwe woyambirira | ||||||
| Mphamvu yosagwedera ya 1.05In | 2h(n>63A),1h(n<63A) | Chikhalidwe chozizira | ||||||
| Mphamvu yotsika ya 1.3In | 2h(n>63A),1h(n<63A) | Pitirizani nthawi yomweyo pambuyo pa mayeso a Nambala 1 | ||||||
| 3 Kusinthasintha kwa nthawi yogwirira ntchito pamene mtengo uliwonse wa over- Kutulutsa kwamakono kwa chitetezo cha injini kumayatsidwa nthawi yomweyo. | ||||||||
| Kukhazikitsa Nthawi Yamakono Yoyambira | Zindikirani | |||||||
| 1.0In | >2 ola | Dziko Lozizira | ||||||
| 1.2In | ≤2 ola | Anapitiliza nthawi yomweyo mayeso a Nambala 1 atatha | ||||||
| 1.5In | ≤4mphindi | Dziko Lozizira | 10≤Mu≤225 | |||||
| ≤8mphindi | Dziko Lozizira | 225≤Mu≤630 | ||||||
| 7.2In | 4s≤T≤10s | Dziko Lozizira | 10≤Mu≤225 | |||||
| 6s≤T≤masekondi 20 | Dziko Lozizira | 225≤Mu≤630 | ||||||
| 4. Chikhalidwe cha ntchito ya circuit breaker yogawa mphamvu chiyenera kukhazikitsidwa pa 10in + 20%, ndipo cha circuit breaker yoteteza injini chiyenera kukhazikitsidwa pa 12ln ± 20% |
CJMM1-63, 100, 225, Kukula kwa Chidule ndi Kukhazikitsa (Kulumikizana kwa bolodi lakutsogolo)
| Miyeso (mm) | Khodi ya Chitsanzo | |||||||
| CJMM1-63S | CJMM1-63H | CJMM1-63S | CJMM1-100S | CJMM1-100H | CJMM1-225S | CJMM1-225 | ||
| Kukula kwa Ndondomeko | C | 85.0 | 85.0 | 88.0 | 88.0 | 102.0 | 102.0 | |
| E | 50.0 | 50.0 | 51.0 | 51.0 | 60.0 | 52.0 | ||
| F | 23.0 | 23.0 | 23.0 | 22.5 | 25.0 | 23.5 | ||
| G | 14.0 | 14.0 | 17.5 | 17.5 | 17.0 | 17.0 | ||
| G1 | 6.5 | 6.5 | 6.5 | 6.5 | 11.5 | 11.5 | ||
| H | 73.0 | 81.0 | 68.0 | 86.0 | 88.0 | 103.0 | ||
| H1 | 90.0 | 98.5 | 86.0 | 104.0 | 110.0 | 127.0 | ||
| H2 | 18.5 | 27.0 | 24.0 | 24.0 | 24.0 | 24.0 | ||
| H3 | 4.0 | 4.5 | 4.0 | 4.0 | 4.0 | 4.0 | ||
| H4 | 7.0 | 7.0 | 7.0 | 7.0 | 5.0 | 5.0 | ||
| L | 135.0 | 135.0 | 150.0 | 150.0 | 165.0 | 165.0 | ||
| L1 | 170.0 | 173.0 | 225.0 | 225.0 | 360.0 | 360.0 | ||
| L2 | 117.0 | 117.0 | 136.0 | 136.0 | 144.0 | 144.0 | ||
| W | 78.0 | 78.0 | 91.0 | 91.0 | 106.0 | 106.0 | ||
| W1 | 25.0 | 25.0 | 30.0 | 30.0 | 35.0 | 35.0 | ||
| W2 | - | 100.0 | - | 120.0 | - | 142.0 | ||
| W3 | - | - | 65.0 | 65.0 | 75.0 | 75.0 | ||
| Kuyika Kukula | A | 25.0 | 25.0 | 30.0 | 30.0 | 35.0 | 35.0 | |
| B | 117.0 | 117.0 | 128.0 | 128.0 | 125.0 | 125.0 | ||
| od | 3.5 | 3.5 | 4.5 | 4.5 | 5.5 | 5.5 | ||
CJMM1-400,630,800, Kukula kwa Chidule ndi Kukhazikitsa (Kulumikizana kwa bolodi lakutsogolo)
| Miyeso (mm) | Khodi ya Chitsanzo | |||||||
| CJMM1-400S | CJMM1-630S | |||||||
| Kukula kwa Ndondomeko | C | 127 | 134 | |||||
| C1 | 173 | 184 | ||||||
| E | 89 | 89 | ||||||
| F | 65 | 65 | ||||||
| G | 26 | 29 | ||||||
| G1 | 13.5 | 14 | ||||||
| H | 107 | 111 | ||||||
| H1 | 150 | 162 | ||||||
| H2 | 39 | 44 | ||||||
| H3 | 6 | 6.5 | ||||||
| H4 | 5 | 7.5 | ||||||
| H5 | 4.5 | 4.5 | ||||||
| L | 257 | 271 | ||||||
| L1 | 465 | 475 | ||||||
| L2 | 225 | 234 | ||||||
| W | 150 | 183 | ||||||
| W1 | 48 | 58 | ||||||
| W2 | 198 | 240 | ||||||
| A | 44 | 58 | ||||||
| Kuyika Kukula | A1 | 48 | 58 | |||||
| B | 194 | 200 | ||||||
| Od | 8 | 7 | ||||||
Chithunzi Chodulira Cholumikizira Bwalo Lakumbuyo
| Miyeso (mm) | Khodi ya Chitsanzo | ||||||
| CJMM1-63S CJMM1-63H | CJMM1-100S CJMM1-100H | CJMM1-225S CJMM1-225H | CJMM1-400S | CJMM1-400H | CJMM1-630S CJMM1-630H | ||
| Kukula kwa Bodi Yakumbuyo Mtundu Wolumikizira Pulagi | A | 25 | 30 | 35 | 44 | 44 | 58 |
| od | 3.5 | 4.5*6 dzenje lakuya | 3.3 | 7 | 7 | 7 | |
| od1 | - | - | - | 12.5 | 12.5 | 16.5 | |
| od2 | 6 | 8 | 8 | 8.5 | 9 | 8.5 | |
| oD | 8 | 24 | 26 | 31 | 33 | 37 | |
| oD1 | 8 | 16 | 20 | 33 | 37 | 37 | |
| H6 | 44 | 68 | 66 | 60 | 65 | 65 | |
| H7 | 66 | 108 | 110 | 120 | 120 | 125 | |
| H8 | 28 | 51 | 51 | 61 | 60 | 60 | |
| H9 | 38 | 65.5 | 72 | - | 83.5 | 93 | |
| H10 | 44 | 78 | 91 | 99 | 106.5 | 112 | |
| H11 | 8.5 | 17.5 | 17.5 | 22 | 21 | 21 | |
| L2 | 117 | 136 | 144 | 225 | 225 | 234 | |
| L3 | 117 | 108 | 124 | 194 | 194 | 200 | |
| L4 | 97 | 95 | 9 | 165 | 163 | 165 | |
| L5 | 138 | 180 | 190 | 285 | 285 | 302 | |
| L6 | 80 | 95 | 110 | 145 | 155 | 185 | |
| M | M6 | M8 | M10 | - | - | - | |
| K | 50.2 | 60 | 70 | 60 | 60 | 100 | |
| J | 60.7 | 62 | 54 | 129 | 129 | 123 | |
| M1 | M5 | M8 | M8 | M10 | M10 | M12 | |
| W1 | 25 | 35 | 35 | 44 | 44 | 58 | |
Ma molded case circuit breakers ndi zida zotetezera zamagetsi zomwe zimapangidwa kuti ziteteze dera lamagetsi ku magetsi ochulukirapo. Mphamvu yochulukirapo iyi imatha kuchitika chifukwa cha overload kapena short circuit. Ma molded case circuit breakers angagwiritsidwe ntchito m'ma voltage ndi ma frequency osiyanasiyana okhala ndi malire otsika komanso apamwamba a mayendedwe osinthika. Kuphatikiza pa njira zopunthwa, ma MCCB amathanso kugwiritsidwa ntchito ngati ma switch odulira manual pakagwa mwadzidzidzi kapena ntchito zokonza. Ma MCCB ndi ofanana ndipo amayesedwa kuti awone overcurrent, voltage surge, ndi error protection kuti atsimikizire kuti akugwira ntchito bwino m'malo onse ndi ntchito. Amagwira ntchito bwino ngati reset switch ya dera lamagetsi kuti adule magetsi ndikuchepetsa kuwonongeka komwe kumachitika chifukwa cha overload ya dera, ground fault, short circuit, kapena pamene current yapitirira malire a current.
M'dziko lamakono lamakono, magetsi ndi gawo lofunika kwambiri pa moyo wathu wa tsiku ndi tsiku. Kuyambira kuyika magetsi m'nyumba zathu mpaka kuyendetsa makina a mafakitale, kuonetsetsa kuti makina amagetsi ndi otetezeka komanso odalirika ndikofunikira kwambiri. Chotsekera magetsi chopangidwa ndi molded case (MCCB) ndi gawo lofunika kwambiri. Mu blog iyi, tifufuza kufunika kwa ma MCCB pakuonetsetsa kuti magetsi ndi otetezeka.
MCCB ndi chipangizo choteteza magetsi chomwe chimapangidwa kuti chiteteze ma circuit ndi zida ku zinthu zodzaza ndi magetsi komanso ma short circuit. Amagwiritsidwa ntchito kwambiri m'nyumba, m'mabizinesi ndi m'mafakitale kuti apewe kuwonongeka kwa magetsi komanso, chofunika kwambiri, kuchepetsa chiopsezo cha moto wamagetsi.
Chimodzi mwa ntchito zazikulu za MCCB ndikuletsa kuyenda kwa magetsi ngati magetsi achulukirachulukira kapena afupikitsa. Izi ndizofunikira kwambiri poletsa mawaya ndi zida zina kuti zisatenthe kwambiri, zomwe zingayambitse moto komanso kuwonongeka kwakukulu. Mwa kugwetsa magetsi ndikudula magetsi, ma MCCB amathandiza kupewa zoopsa zomwe zingachitike komanso kuteteza anthu ndi katundu.
Kuphatikiza apo, MCCB imapereka mwayi wosavuta komanso wosinthasintha pamakina amagetsi. Amatha kubwezeretsedwanso mosavuta pambuyo pa ulendo, zomwe zimathandiza kuti magetsi abwezeretsedwe mwachangu popanda kufunikira kusintha zida zilizonse. Izi sizimangopulumutsa nthawi ndi khama, komanso zimachepetsa nthawi yogwira ntchito komanso kusokoneza ntchito za tsiku ndi tsiku.
Kuwonjezera pa ntchito yawo yopewa ngozi zamagetsi, ma molded case circuit breakers amathandiza kukonza magwiridwe antchito ndi kudalirika kwa machitidwe amagetsi. Mwa kuteteza ku overloads ndi short circuit, amathandiza kusunga umphumphu wa zida zamagetsi ndikuwonjezera nthawi yogwirira ntchito. Izi zimachepetsa kufunika kokonza ndi kusintha zinthu mokwera mtengo, zomwe zimasunga nthawi ndi ndalama pakapita nthawi.
Ndikofunikira kudziwa kuti si ma MCCB onse omwe ali ofanana. Posankha MCCB yogwiritsira ntchito inayake, ndikofunikira kuganizira zinthu monga current rating, breakability ndi operating voltage. Ma specifications awa ayenera kufananizidwa mosamala ndi zofunikira za makina amagetsi kuti atsimikizire chitetezo ndi magwiridwe antchito oyenera.
Kuphatikiza apo, kukonza ndi kuyesa MCCB nthawi zonse ndikofunikira kwambiri kuti zitsimikizire kuti ikugwira ntchito bwino. Kuwunika ndi kuyesa nthawi zonse kungathandize kuzindikira mavuto aliwonse omwe angakhalepo kapena kuwonongeka kotero kukonza kapena kusintha kungachitike ngati pakufunika kutero.
Mwachidule, ma molded case circuit breakers amachita gawo lofunika kwambiri pakuonetsetsa kuti magetsi ali otetezeka komanso odalirika. Mwa kuteteza ku overloads ndi short circuit, zimathandiza kupewa ngozi zamagetsi ndikuchepetsa chiopsezo cha moto. Kuphatikiza apo, zimathandiza kuwonjezera magwiridwe antchito ndi moyo wautali wa makina amagetsi, zomwe zimapangitsa kuti akhale gawo lofunikira kwambiri pakukhazikitsa magetsi amakono. Kuyika ndalama mu MCCB yabwino ndikuwonetsetsa kuti ikusamalidwa bwino ndikofunikira kwambiri poteteza anthu ndi katundu ku zoopsa za magetsi.