Mu MCCB, mphamvu yothyola ma circuit short breaking imatanthauza mphamvu yothyola ma circuit pansi pa mikhalidwe yodziwika. Pambuyo pa njira yoyesera yomwe yatchulidwa, ndikofunikira kuganizira kuti circuit breaker ikupitiliza kunyamula mphamvu yake yodziwika. Pofuna kukwaniritsa zosowa za ogwiritsa ntchito osiyanasiyana, opanga ma circuit breaker ambiri tsopano amagawa mphamvu yothyola ma circuit short-circuit ya shell rating current yomweyi m'magawo osiyanasiyana, ndipo ogwiritsa ntchito amatha kusankha circuit breaker yoyenera malinga ndi zosowa zawo kuyambira pa zochepa mpaka ma circuit breaker apamwamba kwambiri. Ndi ofala kwambiri ndipo amapezeka pafupifupi mnyumba iliyonse kapena nyumba iliyonse kotero kuti nthawi zambiri amaonedwa ngati osafunikira. Komabe, amachita gawo lofunikira mu dongosolo lathu lamagetsi ndipo ayenera kusamalidwa kuti agwirizane ndi miyezo yaposachedwa yachitetezo.
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% |