CJ: Ikhowudi yeshishini
M: Isixhobo sokwaphula isekethe esibunjiweyo
1: Inombolo yoYilo
□:Umlinganiselo wangoku wesakhelo
□:Umthamo wokuphuka uphawu lwekhowudi/S lubonisa uhlobo oluqhelekileyo (u-S unokushiywa) u-H ubonisa uhlobo oluphezulu
Qaphela: Kukho iintlobo ezine ze-neutral pole (i-N pole) kwimveliso yezigaba ezine. I-neutral pole yohlobo A ayinayo i-over-current tripping element, ihlala ivuliwe, kwaye ayivulwa okanye icinywe kunye nezinye iipali ezintathu.
Ipali engathathi cala yohlobo B ayinayo into yokukhuhla ngamandla angaphezu kombane, kwaye ivulwa okanye icinywe kunye nezinye iipali ezintathu (ipali engathathi cala ivulwa ngaphambi kokuba icinywe) Ipali engathathi cala yohlobo C inento yokukhuhla ngamandla angaphezu kombane, kwaye ivulwa okanye icinywe kunye nezinye iipali ezintathu (ipali engathathi cala ivulwa ngaphambi kokuba icinywe) Ipali engathathi cala yohlobo D inento yokukhuhla ngamandla angaphezu kombane, ihlala ivulwa kwaye ayivulwa okanye icinywe kunye nezinye iipali ezintathu.
| Igama lesixhobo | Ukukhutshwa nge-elektroniki | Ukukhululwa okudityanisiweyo | ||||||
| Uqhagamshelwano oluncedisayo, ukukhululwa kwe-voltage phantsi, uqhagamshelwano lwe-alam | 287 | 378 | ||||||
| Iiseti ezimbini zoqhagamshelwano ezincedisayo, unxibelelwano lwe-alamu | 268 | 368 | ||||||
| Ukukhululwa kwe-shunt, unxibelelwano lwe-alamu, unxibelelwano oluncedisayo | 238 | 348 | ||||||
| Phantsi kokukhululwa kwe-voltage, uqhagamshelwano lwe-alamu | 248 | 338 | ||||||
| Unxibelelwano lwe-alamu yoqhagamshelwano oluncedisayo | 228 | 328 | ||||||
| I-alamu yokukhupha i-shunt inxibelelana nayo | 218 | 318 | ||||||
| Ukukhululwa kombane ongaphantsi kombane oncedisayo | 270 | 370 | ||||||
| Iiseti ezimbini zoqhagamshelwano ezincedisayo | 260 | 360 | ||||||
| Ukukhululwa kwe-Shunt ukukhutshwa kwe-under-voltage | 250 | 350 | ||||||
| Uqhagamshelwano oluncedisayo lokukhulula i-Shunt | 240 | 340 | ||||||
| Ukukhululwa kwe-Under-voltage | 230 | 330 | ||||||
| Unxibelelwano oluncedisayo | 220 | 320 | ||||||
| Ukukhululwa kwe-Shunt | 210 | 310 | ||||||
| Unxibelelwano lwe-alamu | 208 | 308 | ||||||
| Akukho nto yokongeza | 200 | 300 | ||||||
| 1 Ixabiso elilinganisiweyo lee-circuit breakers | ||||||||
| Imodeli | Imax (A) | Iinkcukacha (A) | Ixabiso leVoltage yokusebenza (V) | I-Voltage yoKhuseleko oluLinganisiweyo (V) | I-Icu (kA) | Ii-Ics (kA) | Inani leeNtsika (P) | Umgama we-Arcing (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 | ||
| Qaphela: Xa iiparameter zovavanyo ze-400V, i-6A ngaphandle kokukhululwa kokufudumeza | ||||||||
| 2 Uphawu lokusebenza oluchaseneyo lokwaphulwa kwexesha xa ipali nganye yokukhululwa kombane ogqithisileyo ivuliwe ngaxeshanye | ||||||||
| Into yovavanyo yangoku (I/In) | Indawo yexesha lovavanyo | Imeko yokuqala | ||||||
| Umbane ongakhubekiyo oyi-1.05In | 2h(n>63A),1h(n<63A) | Imeko yokubanda | ||||||
| Umjikelo wangoku ojikelezayo oyi-1.3In | 2h(n>63A),1h(n<63A) | Qhubeka ngoko nangoko emva kovavanyo lweNombolo 1 | ||||||
| 3. Uphawu lokusebenza oluchaseneyo lokwaphulwa kwexesha xa ipali nganye ye-over- ukukhutshwa kwangoku kokukhusela imoto kuvuliwe ngaxeshanye. | ||||||||
| Ukuseta Ixesha langoku eliqhelekileyo Imeko yokuqala | Phawula | |||||||
| 1.0In | >iiyure ezi-2 | Ilizwe elibandayo | ||||||
| 1.2In | ≤2 iiyure | Kuqhutyelwe phambili kwangoko emva kovavanyo lweNombolo yoku-1 | ||||||
| 1.5In | ≤4min | Ilizwe elibandayo | 10≤Kwi≤225 | |||||
| ≤8min | Ilizwe elibandayo | 225≤Kwi-≤630 | ||||||
| 7.2In | 4s≤T≤10s | Ilizwe elibandayo | 10≤Kwi≤225 | |||||
| 6s≤T≤20s | Ilizwe elibandayo | 225≤Kwi-≤630 | ||||||
| 4. Uphawu lokusebenza ngoko nangoko lwe-circuit breaker yokusasazwa kwamandla kufuneka lubekwe njenge-10in + 20%, kwaye eyom-circuit breaker yokukhusela imoto kufuneka ibekwe njenge-12ln ± 20% |
Ii-Molded case circuit breakers zizixhobo zokukhusela umbane ezenzelwe ukukhusela i-electrical circuit kwi-current egqithisileyo. Le current egqithisileyo inokubangelwa kukugqithisa okanye i-short circuit. Ii-molded case circuit breakers zingasetyenziswa kuluhlu olubanzi lwee-voltage kunye nee-frequency ezinomda ochaziweyo osezantsi nophezulu wezicwangciso zokutshintsha ezilungisekayo. Ukongeza kwiinkqubo zokukhubeka, ii-MCCB zingasetyenziswa njengee-manual disconnecting switches xa kukho imeko engxamisekileyo okanye imisebenzi yokulungisa. Ii-MCCB zisemgangathweni kwaye zivavanyelwa i-overcurrent, i-voltage surge, kunye nokukhuselwa kwempazamo ukuqinisekisa ukusebenza ngokukhuselekileyo kuzo zonke iindawo kunye nezicelo. Zisebenza ngokufanelekileyo njenge-reset switch ye-electrical circuit ukuze zikhuphe umbane kwaye zinciphise umonakalo obangelwa yi-circuit overload, i-ground fault, i-short circuit, okanye xa i-current idlula umda we-current.