kawea matou kaha mārama mo te ao

Me pēhea te ki te Tīpakonga Miniature Arata Circuit

Circuit kaiwahi whakarōpū

tuatea taiawhio Low-ngaohiko

Low-ngaohiko e noa i roto i te tono kāinga, arumoni, me te ahumahi (iti iho i te 1,000 VAC) momo, me ngā:

·  (MCB) Miniature iahiko takahi-rated nāianei kore neke atu i te 100 āhuatanga A. Trip tikanga e kore e taea te whakarite. Mahi Thermal waiariki-autō ranei. Breakers faahoho'ahia i runga ake e i roto i tenei kāwai.

·  (MCCB) whakarewa Case Circuit Kangatari-rated nāianei ake ki te 2,500 A. Thermal ranei waiariki-autō mahi. Kia taea te whakarite i roto i te whakataunga nui Trip nāianei.

·  (ACB) Low-ngaohiko tuatea mana haaati) e taea te eke i roto i te maha-rarangi i roto i te iti-ngaohiko panelboard switchgears ranei.

Te din kaiwahi taiawhio iti waiariki-autō rail-eke ko te kāhua tino noa

MCB Paerewa whakatauranga nāianei


tuatea taiawhio Miniature i te tautuhinga haerenga whakaritea; te huri i te uara o nāianei mahi titau te huri i te kaiwahi i ara iahiko katoa. Ka taea e whai tautuhinga haerenga te whakarite nui kupu taka iahiko, tuku āhuatanga ōrite ki te kia tono engari ki te tautuhinga tikanga ki te whakapai ake tiaki. Hei tauira, he takahi taiawhio ki te 400 wae iahiko "rahi tāpare" kia whai whakatakotoria ona rapunga overcurrent ki te mahi i te 300 anake amperes, ki te tiaki i te taura pūwhāngai.

IEC 60898-1 ko EN 60898-1, tautuhi te  nāianei tauanga  ahau n  of a circuit breaker for low voltage distribution applications as the maximum current that the breaker is designed to carry continuously (at an ambient air temperature of 30 °C). The commonly available preferred values for the rated current are1A,2A,4A, 6 A, 10 A, 13 A, 16 A, 20 A, 25 A, 32 A, 40 A, 50 A, 63 A, 80 A, 100 A, and 125 A  The circuit breaker is labeled with the rated current in amperes, but excluding the unit symbol, A. Instead, the ampere figure is preceded by a letter, BC, or D, which indicates the instantaneous tripping current — that is, the minimum value of current that causes the circuit breaker to trip without intentional time delay

momo

nāianei hīrau inamata

B

Runga ake 3  ahau n

C

I runga 5  ahau n  ki runga ki a tae atu 10  ahau n

D

Runga ake 10  ahau n  ki runga ki a tae atu 20  ahau n

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MCB Breaking Raukaha (AIC)

E tauanga tuatea iahiko e rua i te nāianei noa e e tūmanakohia ratou ki te kawe, me te mōrahi o nāianei poto-iahiko e taea e ratou o veteki humarie. Tenei ahua whakamutunga ko te  wae iahiko tape'ai kaha  ( AIC ) o te kaiwahi i.

E tauanga Angamaheni tuatea iahiko rōpū motu ki te aruaru  10  KA  ( 10000 A ) poto-taiawhio nāianei, me 6KA (60000A)

hanganga MCB ā-

 4444

1.  Actuator hua - whakamahia ki te tutuki ā, ka tautuhi anō i te kaiwahi i ara iahiko. Tohu hoki te mana o te kaiwahi i iahiko (I ranei tutuki Weto /).

2.  Actuator tikanga - taruke tahi motu ranei nga hoapā.

3.  Hoapā - tukua nāianei ka mo a whati i te nāianei ka oho motu.

4.  terminals

5.  Unuhia Bimetallic - wehe hoapā i roto i te whakautu ki iti, overcurrents wā-roa

6.  Tōkarikari takahuri - taea te kaiwhakanao ki te whakarite ïa te nāianei haerenga o te pūrere i muri i whakaminenga.

7.  Solenoid - wehe hoapā tere i roto i te whakautu ki overcurrents teitei

8.  Arc kaiwehewehe / whakapoko

9. 

tau MCB Pou me tono

tuatea taiawhio Miniature 1P, 1P + N, 2P, 3P, 3P + N, 4P!

1P, 2P, 3P, 4P he tau pou, tohu e taea te segmented rave rahi rārangi. Na + N, kua pakaru rārangi N katoa, engari i reira he kahore pūrere haerenga i runga i te raina N. Anake ka pakaru te rārangi wā e, tapahia te aho N te atu. Hei tauira, mō te ara iahiko takahi 4P 16A, ki te he nui atu 16A, nui ranei atu 20A, i roto i te ariā, ka tutuki i te takahi iahiko te nāianei raina N-. Ko te ara iahiko takahi 3P + N, N raina 160A nāianei, e kore e peke. Ko te kōhanga, ko te e kore e nui ake te nāianei wāhanga te uara tauanga.

1P, 2P taputapu kotahi-wā, rama taea te whakamahi i 1P, turanga ki 2P; whakamahia 3P i roto i te taputapu e toru-wāhanga, me i reira ko te whare hiko toru-wāhanga.

Hoki ngaru taiawhio iti, 1P + N, 1P, a 2P e te tikanga whakamahia rite i runga i-atu mana mo te kotahi-wāhanga taputapu hiko, engari he rerekē te pānga.

1P-- kotahi-pou iahiko takahi ki waiariki mahi hīrau autō, anake whakahaere te raina ahi (rārangi wāhanga), te whānui modular he 18mm;

1P + N - 1Pole + N ara iahiko takahi, e whakahaere nga rārangi ora, me te kūpapa i te wa ano, engari te waea te ahi 1P anake kua te mahi o te hīrau autō ngāwhā; Ko hoki te uara tawhiti 18mm;

2P-- Single-wāhanga 2-pou ara iahiko takahi, e whakahaere e rua nga rārangi ora, me te kūpapa, me e rua whai he mahi hīrau autō waiariki, me te uara tawhiti, ko te 2 * 18mm = 36mm.

Na reira, e taea te unu te whakatau e whai ake nei:

1. I roto i te tikanga ki te whakaiti i te utu, e taea te whakamahi 1P, engari me whai i te takahi ara iahiko o runga te mahi leakage haerenga. I roto i te tikanga ki te ārai i ngā aituā meinga e te ahi me te kore whakararuraru i roto i te tiaki, me ka hatepea te supply mana o runga atu;

2. hoki te tupato kotahi raruraru i roto i te tiaki, ka taea te whakamahi 1P + N (ie DPN);

3, te take mō te whakamahi i 2P: hoki te take iahiko takahi i te mea ano hoki uara tawhiti 18mm, i reira te mea he rerekētanga i waenganui i te ā-1P me te 1P + N. Ko te "rohe whawhati kaha" mua i roto i te āhua aituā poto-iahiko ko tino runga ake i taua. I muri i te katoa, wāhi ko te take nui e pa ana i te kaha ki te wahi i. Na reira, hoki iahiko mana e te hunga nui ake, pinepine e hanga ana, ka whakahaere, ka pängia ki te kore, he reira pai ki te whakamahi i 2P (utu teitei).


Post time: Aug-13-2018

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