Kwi-MCCB, ireyithwe kwi-short circuit breaking capacity ibhekisa kumthamo wokuqhawuka phantsi kweemeko ezithile.Emva kwenkqubo yovavanyo oluchaziweyo, kuyimfuneko ukuqwalasela ukuba i-breaker circuit iyaqhubeka nokuthwala i-current yayo ehleliweyo.Ukuze kuhlangatyezwane neemfuno zabasebenzisi abahlukeneyo, abaninzi abavelisi besekethe ngoku bahlulahlula amandla okuqhekeza iqokobhe elifanayo kumanqanaba ahlukeneyo, kwaye abasebenzisi banokukhetha isaphuli sesekethe esifanelekileyo ngokweemfuno zabo ukusuka kowona mncinci ukuya kowona mkhulu. abaphuli beesekethe bangoku.Zixhaphake kakhulu kwaye zifumaneka phantse kuso nasiphi na isakhiwo okanye isakhiwo esihlala sithathwa njengesiqhelo.Nangona kunjalo, badlala indima ebalulekileyo kwinkqubo yethu yegridi yombane kwaye kufuneka igcinwe ukuze ihambisane nemigangatho yamva nje yokhuseleko.
CJ:Ikhowudi yeshishini
M:Ityala elibunjiweyo lesaphuli sesekethe
1:Inombolo yoyilo
□:Umlinganiselo wangoku wesakhelo
□:Ukwaphulwa kwekhowudi yophawu/S ichaza uhlobo olusemgangathweni (S ingashiywa)H ichaza uhlobo oluphezulu
Qaphela: Kukho iintlobo ezine zepali engathathi hlangothi (i-N pole) kwimveliso yezigaba ezine. Ipali engathathi hlangothi yohlobo A ayixhotyiswanga yinto yokukhubeka yangoku, ihlala ilayita, kwaye ayivulwa okanye icinywe kunye nezinye. iipali ezintathu.
Ipali engathathi hlangothi yohlobo B ayixhotyiswanga ngento yokukhubeka ngokungaphaya, kwaye iyacinywa okanye icinywe kunye nezinye iipali ezintathu (ipali engathathi hlangothi iyalayitwa phambi kokuba icinywe)Ipali engathathi hlangothi yohlobo C ixhotyiswe ngokungaphezulu- into enokukhubeka yangoku, kwaye iyalayitwa okanye icinywe kunye nezinye iipali ezintathu (ipali engathathi hlangothi iyavulwa phambi kokuba icinywe) Ipali engathathi hlangothi yohlobo D ixhotyiswe ngesixhobo sokukhubeka sangoku, ihlala ilayita kwaye ayitshintshwa. phezu okanye ukucinywa kunye nezinye iipali ezintathu.
Igama lesincedisi | Ukukhutshwa kwe-elektroniki | Ukukhutshwa komdibaniso | ||||||
Uqhagamshelwano oluncedisayo, phantsi kokukhululwa kwamandla ombane, uqhagamshelwano lwe-alam | 287 | 378 | ||||||
Iiseti ezimbini zoqhagamshelwano ezincedisayo,uqhagamshelwano lwe-alam | 268 | 368 | ||||||
Ukukhutshwa kwe-Shunt, uqhagamshelwano lwe-alam, uqhagamshelwano oluncedisayo | 238 | 348 | ||||||
Ngaphantsi kokukhutshwa kwamandla ombane, uqhagamshelwano lwe-alam | 248 | 338 | ||||||
Umnxeba oncedisayo we-alam | 228 | 328 | ||||||
Cima umnxeba wokukhupha i-alam | 218 | 318 | ||||||
Uqhagamshelwano oluncedisayo olungaphantsi kwe-voltage | 270 | 370 | ||||||
Iiseti ezimbini zoqhagamshelwano ezincedisayo | 260 | 360 | ||||||
Ukukhutshwa kwe-shunt under-voltage release | 250 | 350 | ||||||
Shunt ukukhulula unxibelelwano oluncedisayo | 240 | 340 | ||||||
Ukukhutshwa kwe-voltage engaphantsi | 230 | 330 | ||||||
Uqhagamshelwano oluncedisayo | 220 | 320 | ||||||
Shunt ukukhululwa | 210 | 310 | ||||||
Uqhagamshelwano nge-alam | 208 | 308 | ||||||
Akukho sincedisi | 200 | 300 |
1 Ixabiso elilinganisiweyo lee-circuit breakers | ||||||||
Umzekelo | Imax (A) | Iinkcukacha (A) | Ulinganiso loMsebenzi weVoltage(V) | Umgangatho weVoltage ye-Insulation (V) | Icu (kA) | I-Ics (kA) | Inani leepali (P) | Umgama weArcing (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 iiparamitha zovavanyo ze-400V, i-6A ngaphandle kokukhululwa kokufudumeza |
2 Umsebenzi wokwaphulwa kwexesha eliguquliweyo xa ipali nganye yokukhutshwa okungaphaya konikezelo lwamandla ilayitiwe ngexesha elinye. | ||||||||
Into yovavanyo lwangoku (I/In) | Indawo yexesha lovavanyo | Imeko yokuqala | ||||||
I-Non-tripping yangoku 1.05In | 2h(n>63A),1h(n<63A) | Isimo esibandayo | ||||||
Ukuhamba ngoku 1.3In | 2h(n>63A),1h(n<63A) | Qhubeka kwangoko emva kovavanyo lweNo.1 |
3 Ukwaphulwa kwexesha eliguqukayo kuphawu lomsebenzi xa ipali nganye ukukhululwa kwangoku kukhuseleko lwemoto lusebenza ngexesha elinye. | ||||||||
Ukumisela ixesha langoku leSiqhelo Ilizwe lokuqala | Phawula | |||||||
1.0Ngaphakathi | >2h | Ilizwe elibandayo | ||||||
1.2Ngaphakathi | ≤2h | Qhubeka ngokukhawuleza emva kovavanyo lwe-No.1 | ||||||
1.5Ngaphakathi | ≤4min | Ilizwe elibandayo | 10≤Ku≤225 | |||||
≤8min | Ilizwe elibandayo | 225≤Ku≤630 | ||||||
7.2Ngaphakathi | 4s≤T≤10s | Ilizwe elibandayo | 10≤Ku≤225 | |||||
6s≤T≤20s | Ilizwe elibandayo | 225≤Ku≤630 |
4 Uphawu lokusebenza olukhawulezayo lwesaphuli sesekethe kunikezelo lwamandla luya kusekwa njenge-10in+20%, kwaye enye yebreaker yesekethe yokhuseleko lwemoto iya kusekwa njenge-12ln±20% |