מה הם סוגי המגברים התלת-פאזיים?
etypes sheloshi polim shel MCB
Sheloshi polim shel miniaturi circuit breakers (MCB) yechol lehachpitz le'etgarot al pi tachlitam, siftei hatipa, hafatach ha'atzmi ve'itgarot meyuchadot. Lematara mitchutit shel etgarot sheloshi polim shel MCB:
1. Hachpitzah al pi tachlitam
3P (Shelosha Polim) MCB:
Tachlita: Nimtza b'mishkalim sheloshi polim she'ein lahem kav neutral (N). Nogea letachlitim k'v'davar motor sheloshi polim v'kailim teva'i she'ein tzricha lekav neutral.
Ma'ase: B'shituf chashalat o shum klali b'pol ehad, kol shlosha hapolim mitpatpatim b'yachad, misgir l'hatzat haklita shel haklita b'sikun.
3P+N (Shelosha Polim Plus Neutral) MCB:
Tachlita: Nimtza b'mishkalim sheloshi polim arba'a kavim shemazkir kav neutral. Nogea letachlitim k'v'davar mishkalim sheloshi polim u'fachim echad be'chad, k'mo batim noshim umishtachevim im taarich sheloshi polim.
Ma'ase: Haklita sheloshi polim notena shmirat chashalat u'shum klali, rak hakav neutral ein lo ta'asa mitpatpat. Aval b'shituf mitpatpat hakavim ha'atzmi, hakav neutral gam hu nifratzek l'hagshir mimeno sikun.
4P (Arba'a Polim) MCB:
Tachlita: Nimtza b'mishkalim sheloshi polim arba'a kavim shemazkir kav neutral. Nogea letachlitim she'mitbagshim shmirat chashalat shel hakav neutral, k'mo kailim delukati v'kailim refui'im.
Ma'ase: Arba'a polim MCB noten shmirat chashalat u'shum klali l'kol shlosha hapolim ve'hakav neutral. Im ye'ese chashalat b'pol ehad o hakav neutral, arba'a hapolim mitpatpatim b'yachad, misgir l'hatzat haklita shel haklita b'sikun.
2. Hachpitzah al pi siftei hatipa
Siftei hatipa shel MCB menatze'ach et zman hatipa bo nechoshavim yoter mi'hafatach hazeh. Etgarot tipa yekari'im melukachim:
B-Type: Mitpatpat b'3-5 pa'amim hafatach ha'atzmi. Nogea letachlitim purani'im u'kailim or hanacha, nimtza b'mishkalim noshim l'shimur kailim bayit u'l'shimur gviya.
C-Type: Mitpatpat b'5-10 pa'amim hafatach ha'atzmi. Nogea l'shimur kavim u'mishkalim im ma'agalim gedolim, k'mo kailim or v'motor. Zeh hu tipa ha'noga'a be'tachlitim teva'i'im u'mishtachevim.
D-Type: Mitpatpat b'10-20 pa'amim hafatach ha'atzmi. Nogea l'shimur kailim im ma'agalim adiri'im, k'mo transformatorim v'solenoidim. Tipa zu idealit lemishkalim im ma'agalim gadol.
K-Type: Mitpatpat b'8-12 pa'amim hafatach ha'atzmi. Nogea letachlitim induktivi'im v'mishkalim motorim im ma'agalim adiri'im. Nimtza l'shimur u'neged transformatorim, kavim yudape'i'im, v'motorim m'chashalat u'shum klali.
Z-Type (o A-Type): Mitpatpat b'2-3 pa'amim hafatach ha'atzmi. Eino nogea k'v'davar, tipa noga'a l'shimur semiconductors o tachlitim meyuchadot.
3. Hachpitzah al pi hafatach ha'atzmi
Hafatach ha'atzmi shel MCB sheloshi polim tipatych b'10A ad 63A o yoter, al pi tachlita. Etgarot hafatach ha'atzmi yekari'im melukachim:
10A
16A
20A
25A
32A
40A
50A
63A
4. Hachpitzah al pi tachlita
MCB Shel Kolel: Nogea l'shimur chashalat u'shum klali b'mishkalim noshim, mishtachevim u'teva'i'im.
Residual Current Circuit Breaker with Overcurrent Protection (RCBO): Yoter m'shimur chashalat u'shum klali, RCBO noten shmirat ma'agal shavi (ma'agal hitpashtut). Otam mitpatpatim b'chidush b'zman ma'agal hitpashtut over pa'amim set, misgir l'shimur gviya. Nogea letachlitim ruchi'im, matbakhim, hamamot, v'makomim asher shimur elektri'im hu mikre'i.
Current-Limiting MCB: Tipa zo mitgaberet al mispar ma'agal b'zman chashalat, metgaberet al hasaron l'hafatach u'kailim. Nogea letachlitim asher ma'agal chashalat yesh l'shimur chazak.
5. Hachpitzah al pi derech hashlama
DIN Rail Mounting: Derech hashlama ha'noga'a, nogea lekavim noshim u'teva'i'im. DIN rail-mounted MCBs yecholim lehashlim u'lefrot b'chidush, osim shimur u'chiluf easy.
Panel Mounting: Nogea letachlitim asher MCB tzrich l'hishtalem al panel, k'mo kavim noshim u'mishtachevim.
Itar
B'chirat MCB sheloshi polim tayar al pi tachlitim yekari'im, tipa shel masa, hafatach ha'atzmi, v'tachlitim shel shimur. Etgarot sheloshi polim shel MCB melukachim 3P, 3P+N, ve'4P, im siftei hatipa k'B, C, D, K, ve'Z. Hafatach ha'atzmi tipatych b'10A ad 63A. Yoter m'zeh, MCB yecholim l'bachor al pi tachlitim shel shimur ma'agal shavi, shimur ma'agal, o tachlitim meyuchadot.
