Mun kawo bayyananne ikon for duniya

Yadda Selection dada Circuit Ubangiji Yesu Kristi

Circuit wato Ubangiji Yesu Kristi rarrabuwa

Low-ƙarfin lantarki kewaye hutu

Low-ƙarfin lantarki (kasa da 1,000 VAC) iri ne kowa a gida, kasuwanci da masana'antu aikace-aikace, kuma sun hada da:

·  (MCB) dada kewaye wato Ubangiji Yesu Kristi-rated halin yanzu ba fiye da 100 A. Tafiya halaye kullum ba daidaitacce. Thermal ko thermal-Magnetic aiki. Hutu misalta sama suna cikin wannan rukuni.

·  (MCCB) wanda ya canja Case Circuit Ubangiji Yesu Kristi-rated yanzu har zuwa 2,500 A. thermal ko thermal-Magnetic aiki. Tafiya halin yanzu na iya zama daidaitacce a fi girma ratings.

·  (ACB) Low-ƙarfin lantarki ikon kewaye hutu) za a iya saka a Multi-tiers a low-ƙarfin lantarki panelboard ko switchgears.

A DIN dogo-saka thermal-Magnetic dada kewaye wato Ubangiji Yesu Kristi ne ya fi kowa style

MCB Standard halin yanzu ratings


Dada kewaye hutu da tsayayyen tafiya saitin. canza aiki halin yanzu darajar bukatar canza dukan kewaye wato Ubangiji Yesu Kristi. Ya fi girma kewaye hutu iya samun daidaitacce tafiya saituna, kyale daidaita abubuwa a shafi amma tare da wani saitin yi nufin inganta kariya. Alal misali, a kewaye wato Ubangiji Yesu Kristi da 400 ampere "frame size" iya samun ta overcurrent ganewa kafa ta yi aiki a kawai 300 amperes, don kare wani Feeder na USB.

IEC 60898-1 da EN 60898-1, ayyana  rated halin yanzu  na 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

type

Instantaneous tuntube yanzu

B

Sama 3  na n

C

Sama 5  na n  har zuwa kuma ciki har da 10  na n

D

Sama 10  na n  har zuwa kuma ciki har da 20  na n

4214

MCB Breaking Capacity (AIC)

Circuit hutu ana saran biyu da al'ada halin yanzu da cewa su ne ake sa ran gudanar da wani, kuma matsakaicin gajarta da'ira halin yanzu ba za su iya amince katse. Wannan karshen adadi ne  ampere zumunta iya aiki  ( AIC ) na Ubangiji Yesu Kristi.

Hankula m panel kewaye hutu ana saran ya katse  10  Ka  ( 10000 A ) short-kewaye halin yanzu da kuma 6KA (60000A)

MCB Ciki tsarin

 4444

1.  Actuator liba - yi amfani da su da hannu santsi da kuma sake saita da kewaye wato Ubangiji Yesu Kristi. Har ila yau, ya nuna matsayi na kewaye wato Ubangiji Yesu Kristi (A ko Kashe / tade).

2.  Actuator inji - tilasta lambobi tare, kõ dabam- dabam.

3.  Lambobi - damar halin yanzu a lokacin da taba da kuma warware halin yanzu a lokacin da ya koma baya.

4.  tashoshi

5.  Bimetallic tsiri - raba lambobin sadarwa a mayar da martani ga karami, ya fi tsayi-lokaci overcurrents

6.  k dunƙule - damar da manufacturer to daidai daidaita da tafiya yanzu daga cikin na'ura bayan taron.

7.  Solenoid - raba lambobin cikin sauri a mayar da martani ga babban overcurrents

8.  Arc divider / extinguisher

9. 

MCB iyakacin duniya yawan da kuma aikace-aikace

Dada kewaye hutu 1P, 1P + N, 2P, 3P, 3P + N, 4P!

1P, 2P, 3P, 4P ne iyakacin duniya lambobi, na nuna cewa da dama Lines za a iya segmented. Yanzu + N, duk N Lines suna karya, amma babu wani tafiya na'urar a kan N line. Kawai a lokacin da lokaci line aka karya, da N line aka yanke. Alal misali, don a 4P 16A kewaye wato Ubangiji Yesu Kristi, idan N-line halin yanzu shi ne mafi girma daga 16A, ko mafi girma daga 20A, a ka'idar, da kewaye wato Ubangiji Yesu Kristi zai santsi. Amma da 3P + N kewaye wato Ubangiji Yesu Kristi, N line halin yanzu 160A, ba za tsalle. A Jigo ne cewa lokaci na yanzu bata wuce rated darajar.

1P, 2P guda-lokaci kayan aiki, lighting iya amfani da 1P, soket zuwa 2P. 3P amfani da uku-lokaci kayan aiki, da kuma a can ne a uku-lokaci lantarki iyali.

Domin dada kewaye hutu, 1P + N, 1P, kuma 2P an kullum amfani da on-kashe iko ga guda-lokaci lantarki kayan, amma effects ne daban-daban.

1P-- guda-iyakacin duniya kewaye wato Ubangiji Yesu Kristi da thermal Magnetic tuntube aiki, kawai sarrafa wuta line (lokaci line), da ire fadi ne 18mm.

1P + N - 1Pole + N kewaye wato Ubangiji Yesu Kristi, wanda yana iko da live da kuma tsaka tsaki Lines a lokaci guda, amma kawai 1P wuta waya yana da aiki na thermal Magnetic tuntube. da modulus ne ma 18mm.

2P-- Single-lokaci 2-iyakacin duniya kewaye wato Ubangiji Yesu Kristi, wadda iko duka biyu da live da kuma tsaka tsaki Lines, kuma duka da thermal Magnetic tuntube aiki, da kuma modulus ne 2 * 18mm = 36mm.

Saboda haka, da wadannan karshe za a iya kõma:

1. Domin rage kudin, 1P za a iya amfani, amma babba kewaye wato Ubangiji Yesu Kristi dole ne ya yayyo tafiya aiki. Domin ya hana hatsarori lalacewa ta hanyar wuta da sifili cuta a lokacin tabbatarwa, da na sama da samar da lantarki dole ne a yanke.

2. Domin guje wa daya matsala a lokacin tabbatarwa, 1P + N (watau DPN) za a iya yi amfani da;

3, dalilin yin amfani da 2P: Ga kewaye wato Ubangiji Yesu Kristi hali wanda kuma 18mm modulus, akwai bambanci tsakanin ciki 1P da 1P + N. Tsohon "iyaka watse iya aiki" a cikin gajarta da'ira hatsari jihar ne shakka fi da cewa. Bayan duk, sarari ne mai muhimmanci factor shafi ikon karya. Saboda haka, domin ikon haihuwarka da suke da mafi muhimmanci, akai-akai gyara da kuma sarrafa, da kuma yiwuwa ga rashin cin nasara, shi ne mafi kyau don amfani 2P (mafi girma kudin).


Post time: Aug-13-2018

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