I-RDB8A-63 series miniature circuit breaker – DC MCB

Imininingwane Yomkhiqizo

Amapharamitha

Amasampula Nezakhiwo

Ubukhulu

Isingeniso Somkhiqizo

I-RDB8A-63 miniature circuit breaker (ebizwa ngokuthi i-circuit breaker), esetshenziswa kakhulu emigqeni yokusabalalisa yokuvikela ene-AC 50Hz, i-voltage yokusebenza elinganisiwe engadluli ku-400V, i-current rated engadluli ku-63A, kanye ne-short-circuit breaker elinganisiwe engadluli ku-6000A; ingasetshenziswa futhi ku-DC voltage unipolar engadluli ku-110V, izigxobo ezimbili ezingadluli ku-220V, i-DC current elinganisiwe engadluli ku-63A, i-short-circuit breaker elinganisiwe engadluli ku-6000A emigqeni yokusabalalisa evikelayo; isetshenziselwa ukuxhumana okungajwayelekile, ukuphuka nokushintsha imigqa, ngokugcwala ngokweqile, umsebenzi wokuvikela i-short circuit. Ngesikhathi esifanayo, inamamojula omsebenzi anamandla, njengoxhumana nabo abasizayo, oxhumana nabo abanesibonakaliso se-alamu, ukukhululwa kwe-shunt, ukukhululwa kwe-undervoltage, ukulawula ukuhamba okude kanye namanye amamojula.

Izici

1. Inqubo yokusebenza okuqinisekisiwe

2.Ivolumu encane, umthamo omkhulu

3. Umthamo wokuxhuma izintambo onamandla kakhulu

4. Ukufakwa kahle kwe-insulation phakathi kwezigaba

5. Ukuqhuba okunamandla kakhulu

6. Ukwenyuka kwezinga lokushisa eliphansi kanye nokusetshenziswa kwamandla

Idatha yobuchwepheshe eyinhloko

Izici zokukhubeka komsinga ongaphezu kwamandla: Ngaphansi kwezimo ezijwayelekile zokufakwa kanye nokushisa okubhekiselwe endaweni (30-35)°C

izici zokukhubeka ngokweqile kwe-circuit breaker zihlangabezana nezidingo kuThebula 1.

Umthamo wokuphuka kwesekethe esifushane olinganisiwe we-circuit breaker uboniswe kuThebula 2.

Inombolo	Uhlobo lohambo	Kulinganiswe okwamanje ngaphakathi	Umshini wokuhlola we-AC	Isikhathi esimisiwe	Umphumela olindelekile	isimo sokuqala
1	C	Zonke izindinganiso	1.13In	t≥1h	Akukho hambo	Isimo sokubanda
2	C	Zonke izindinganiso	1.45In	t<1h	Uhambo	ngokushesha ngemva kochungechunge

inombolo 1 iyaphola3C≤32A2.55In1s<1h<60sIsimo sokubanda>32A1s<1h<120s4C≤32A5In7In0.1s≤t≤15sUhambo olungekhoIsimo sokubanda>32A0.1s≤t≤30s5CZonke izindinganiso10In15Int<0.1sUhamboIsimo sokubanda

Uhlobo lohambo	Isilinganiso samanje A	Umthamo wesigaba sesekethe esifushane ulinganiswe	i-cosφ
C	1≤Ku≤63	6000	0.75-0.80

I-lfe yemishini nekagesi: Ngaphansi kwe-voltage elinganisiwe echaziwe, i-circuit breaker yenza futhi iphule i-current elinganisiwe, i-power factor ingu-0.85-0.9, futhi ihlolwa ngemvamisa yemijikelezo yokusebenza engu-120 (>32A) noma engu-240 (>32A) ngehora. Impilo yemishini nekagesi iyizikhathi ezingu-4000.

Amapharamitha (2)