I-CJ: Ikhodi yebhizinisi
M: Isiphuli sesekethe sekesi esibunjiwe
1: Inombolo Yomklamo
□:Uhlaka lwamanje olulinganiselwe
□:Ikhodi yesici/S echaza umthamo wokwephuka imelela uhlobo olujwayelekile (u-S angashiywa) u-H umelela uhlobo oluphezulu
Qaphela: Kunezinhlobo ezine ze-neutral pole (i-N pole) zomkhiqizo wezigaba ezine. I-neutral pole yohlobo A ayinayo i-extra-current tripping element, ihlala ivuliwe, futhi ayivulwa noma ivalwe kanye nezinye izigxobo ezintathu.
I-neutral pole yohlobo B ayinayo i-over-current tripping element, futhi ivuliwe noma ivaliwe kanye nezinye izinti ezintathu (i-neutral pole iyavulwa ngaphambi kokuba icishwe) I-neutral pole yohlobo C ine-over-current tripping element, futhi ivuliwe noma icishwe kanye nezinye izinti ezintathu (i-neutral pole iyavulwa ngaphambi kokuba icishwe) I-neutral pole yohlobo D ine-over-current tripping element, ihlala ivuliwe futhi ayivulwa noma icishwe kanye nezinye izinti ezintathu.
| Igama lesesekeli | Ukukhishwa kwe-elekthronikhi | Ukukhishwa okuhlanganisiwe | ||||||
| Ukuxhumana okusizayo, ukukhululwa kwamandla kagesi, ukuxhumana kwe-alamu | 287 | 378 | ||||||
| Amasethi amabili okuxhumana asizayo, ukuxhumana kwe-alamu | 268 | 368 | ||||||
| Ukukhululwa kwe-shunt, ukuxhumana kwe-alamu, ukuxhumana okusizayo | 238 | 348 | ||||||
| Ukukhululwa kwamandla kagesi, ukuxhumana kwe-alamu | 248 | 338 | ||||||
| Ukuxhumana kwe-alamu yokuxhumana okusizayo | 228 | 328 | ||||||
| Ukuxhumana kwe-alamu yokukhulula i-shunt | 218 | 318 | ||||||
| Ukukhululwa kwe-under-voltage yokuxhumana okusizayo | 270 | 370 | ||||||
| Amasethi amabili okuxhumana asizayo | 260 | 360 | ||||||
| Ukukhishwa kwe-Shunt ngaphansi kwe-voltage | 250 | 350 | ||||||
| Ukuxhumana okusizayo kokukhulula i-shunt | 240 | 340 | ||||||
| Ukukhululwa kwe-Under-voltage | 230 | 330 | ||||||
| Oxhumana naye osizayo | 220 | 320 | ||||||
| Ukukhishwa kwe-shunt | 210 | 310 | ||||||
| Ukuxhumana kwe-alamu | 208 | 308 | ||||||
| Akukho okungeziwe | 200 | 300 | ||||||
| 1 Inani elilinganiselwe lama-circuit breaker | ||||||||
| Imodeli | I-Imax (A) | Imininingwane (A) | I-Voltage Yokusebenza Elinganisiwe (V) | I-Voltage Yokufaka Elinganiselwe (V) | I-Icu (kA) | Ama-Ics (kA) | Inani lama-Poles (P) | Ibanga Lokugoba (mm) |
| I-CJMM1-63S | 63 | 6,10,16,20 25,32,40, 50,63 | 400 | 500 | 10* | 5* | 3 | ≤50 |
| I-CJMM1-63H | 63 | 400 | 500 | 15* | 10* | 3,4 | ||
| I-CJMM1-100S | 100 | 16,20,25,32 40,50,63, 80,100 | 690 | 800 | 35/10 | 22/5 | 3 | ≤50 |
| I-CJMM1-100H | 100 | 400 | 800 | 50 | 35 | 2,3,4 | ||
| I-CJMM1-225S | 225 | 100,125, 160,180, 200,225 | 690 | 800 | 35/10 | 25/5 | 3 | ≤50 |
| I-CJMM1-225H | 225 | 400 | 800 | 50 | 35 | 2,3,4 | ||
| I-CJMM1-400S | 400 | 225,250, 315,350, 400 | 690 | 800 | 50/15 | 35/8 | 3,4 | ≤100 |
| I-CJMM1-400H | 400 | 400 | 800 | 65 | 35 | 3 | ||
| I-CJMM1-630S | 630 | 400,500, 630 | 690 | 800 | 50/15 | 35/8 | 3,4 | ≤100 |
| I-CJMM1-630H | 630 | 400 | 800 | 65 | 45 | 3 | ||
| Qaphela: Uma imingcele yokuhlola ye-400V ikhishwa, i-6A ngaphandle kokushisa | ||||||||
| 2 Isici sokusebenza kokuphula isikhathi okuphambene lapho i-pole ngayinye yokukhululwa kwe-overcurrent yokusatshalaliswa kwamandla ivuliwe ngesikhathi esifanayo | ||||||||
| Into yokuhlolwa yamanje (I/In) | Indawo yesikhathi sokuhlola | Isimo sokuqala | ||||||
| Amandla kagesi angakhubeki angu-1.05In | 2h(n>63A),1h(n<63A) | Isimo sokubanda | ||||||
| Umshini wamanje ogobhozayo ongu-1.3In | 2h(n>63A),1h(n<63A) | Qhubeka ngokushesha ngemuva kokuhlolwa kweNombolo 1 | ||||||
| 3 Isici sokusebenza kokuphula isikhathi okuphambene lapho ipali ngayinye ye-over- ukukhishwa kwamanje kokuvikela injini kuvuliwe ngesikhathi esifanayo. | ||||||||
| Ukusetha Isikhathi Esivamile Samanje Isimo Sokuqala | Inothi | |||||||
| 1.0In | >2h | Isimo Esibandayo | ||||||
| 1.2In | ≤2h | Kuqhubeke ngokushesha ngemva kokuhlolwa kweNombolo 1 | ||||||
| 1.5In | ≤4min | Isimo Esibandayo | 10≤Ku-≤225 | |||||
| ≤8min | Isimo Esibandayo | 225≤Ku-≤630 | ||||||
| 7.2In | 4s≤T≤10s | Isimo Esibandayo | 10≤Ku-≤225 | |||||
| 6s≤T≤20s | Isimo Esibandayo | 225≤Ku-≤630 | ||||||
| 4 Isici sokusebenza okusheshayo kwe-circuit breaker sokusabalalisa amandla kufanele sibekwe njengo-10in + 20%, kanti ese-circuit breaker sokuvikela imoto kufanele sibekwe njengo-12ln ± 20% |
I-CJMM1-63, 100, 225, Usayizi Wohlaka kanye Nokufakwa (Ukuxhumeka kwebhodi langaphambili)
| Osayizi(mm) | Ikhodi Yemodeli | |||||||
| I-CJMM1-63S | I-CJMM1-63H | I-CJMM1-63S | I-CJMM1-100S | I-CJMM1-100H | I-CJMM1-225S | I-CJMM1-225 | ||
| Osayizi Bohlaka | 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 | ||
| Osayizi Bokufaka | 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, Usayizi Wohlaka Nokufakwa (Ukuxhumeka kwebhodi langaphambili)
| Osayizi(mm) | Ikhodi Yemodeli | |||||||
| I-CJMM1-400S | I-CJMM1-630S | |||||||
| Osayizi Bohlaka | 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 | ||||||
| Osayizi Bokufaka | A1 | 48 | 58 | |||||
| B | 194 | 200 | ||||||
| Od | 8 | 7 | ||||||
Umdwebo Wokunqunywa Koxhumano Lwebhodi Langemuva
| Osayizi(mm) | Ikhodi Yemodeli | ||||||
| I-CJMM1-63S I-CJMM1-63H | I-CJMM1-100S I-CJMM1-100H | I-CJMM1-225S I-CJMM1-225H | I-CJMM1-400S | I-CJMM1-400H | I-CJMM1-630S I-CJMM1-630H | ||
| Uhlobo Lokuxhuma Lokuxhuma Osayizi Bebhodi Langemuva | A | 25 | 30 | 35 | 44 | 44 | 58 |
| od | 3.5 | 4.5*6 umgodi ojulile | 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 | |
Ama-Molded case circuit breakers amadivayisi okuvikela kagesi aklanyelwe ukuvikela isekethe kagesi kusuka kumandla kagesi amaningi. Lo mandla kagesi amaningi angabangelwa ukugcwala ngokweqile noma isekethe esifushane. Ama-molded case circuit breakers angasetshenziswa ku-voltage ehlukahlukene kanye nama-frequency anomkhawulo ophansi nophezulu wezilungiselelo zokuhamba ezilungisekayo. Ngaphezu kwezindlela zokukhubeka, ama-MCCB angasetshenziswa futhi njengokushintshana kokuxhuma ngesandla uma kwenzeka isimo esiphuthumayo noma imisebenzi yokulungisa. Ama-MCCB ajwayelekile futhi ahlolwe ukugcwala kwamandla kagesi, ukukhuphuka kwamandla kagesi, kanye nokuvikelwa kwamaphutha ukuqinisekisa ukusebenza okuphephile kuzo zonke izindawo kanye nezinhlelo zokusebenza. Asebenza kahle njengokushintshana kabusha kwesekethe kagesi ukuze anqamule amandla futhi anciphise umonakalo obangelwa ukugcwala kwamandla kagesi, iphutha lomhlabathi, isekethe esifushane, noma lapho amandla kagesi edlula umkhawulo wamanje.
Ezweni lanamuhla lanamuhla, ugesi uyingxenye ebalulekile yempilo yethu yansuku zonke. Kusukela ekunikezeni amandla emakhaya ethu kuya ekusebenziseni imishini yezimboni, ukuqinisekisa ukuphepha nokuthembeka kwezinhlelo zikagesi kubalulekile. I-Molded case circuit breaker (MCCB) iyisici esibalulekile esidlala indima ebalulekile. Kule bhulogi, sizohlola ukubaluleka kwama-MCCB ekuqinisekiseni ukuphepha kukagesi.
I-MCCB iyithuluzi lokuvikela kagesi elenzelwe ukuvikela amasekethe nemishini ekugcwaleni ngokweqile kanye namasekethe amafushane. Avame ukusetshenziswa ezindaweni zokuhlala, zezentengiselwano kanye nezezimboni ukuvimbela umonakalo ezinhlelweni zikagesi, futhi okubaluleke kakhulu, ukunciphisa ingozi yemililo kagesi.
Omunye wemisebenzi eyinhloko ye-MCCB ukuphazamisa ukuhamba kwamanje uma kwenzeka ukulayisha ngokweqile noma ukujikeleza okufushane. Lokhu kubalulekile ekuvimbeleni izintambo nezingxenye ekushiseni ngokweqile, okungaholela emlilweni nasemonakalweni omkhulu. Ngokukhubeka kwezifunda nokunqamula ugesi, ama-MCCB asiza ekugwemeni izingozi ezingaba khona futhi avikele abantu nempahla.
Ngaphezu kwalokho, i-MCCB inikeza izinga lokulula kanye nokuguquguquka kwezinhlelo zikagesi. Zingasethwa kabusha kalula ngemva kohambo, okuvumela ugesi ukuthi ubuyiselwe ngokushesha ngaphandle kwesidingo sokushintsha noma yiziphi izingxenye. Lokhu akugcini nje ngokusindisa isikhathi nomzamo, kodwa futhi kunciphisa isikhathi sokungasebenzi kanye nokuphazamiseka kokusebenza kwansuku zonke.
Ngaphezu komsebenzi wazo wokuvimbela izingozi zikagesi, ama-molded case circuit breakers asiza ekuthuthukiseni ukusebenza kahle kanye nokuthembeka kwezinhlelo zikagesi. Ngokuvikela ekuthwaleni ngokweqile kanye nama-short circuit, asiza ekugcineni ubuqotho bemishini kagesi futhi andise impilo yayo yokusebenza. Lokhu kunciphisa isidingo sokulungiswa okubizayo kanye nokushintsha, okusindisa isikhathi nemali ngokuhamba kwesikhathi.
Kuyafaneleka ukuqaphela ukuthi akuwona wonke ama-MCCB afanayo. Uma ukhetha i-MCCB yohlelo oluthile, kubalulekile ukucabangela izici ezifana nesilinganiso samanje, amandla okwephuka kanye ne-voltage yokusebenza. Lezi zincazelo kufanele zihambisane ngokucophelela nezidingo zesistimu kagesi ukuqinisekisa ukuvikelwa nokusebenza okufanele.
Ngaphezu kwalokho, ukulungiswa nokuhlolwa njalo kwe-MCCB kubalulekile ukuqinisekisa ukusebenza kwayo okuqhubekayo. Ukuhlolwa njalo nokuhlolwa kungasiza ekuboneni noma yiziphi izinkinga ezingaba khona noma ukuguguleka ukuze kulungiswe noma kushintshwe uma kudingeka.
Ngamafuphi, ama-molded case circuit breakers adlala indima ebalulekile ekuqinisekiseni ukuphepha kukagesi nokuthembeka. Ngokuvikela ekugcwaleni ngokweqile kanye nama-short circuits, asiza ekuvimbeleni izingozi zikagesi futhi anciphise ingozi yomlilo. Ngaphezu kwalokho, asiza ekwandiseni ukusebenza kahle kanye nobude bezinhlelo zikagesi, okwenza zibe yingxenye ebalulekile ekufakweni kukagesi kwesimanje. Ukutshala imali ku-MCCB esezingeni eliphezulu nokuqinisekisa ukuthi inakekelwa kahle kubalulekile ekuvikeleni abantu kanye nempahla ezingozini zamaphutha kagesi.