Communiquez avec les autres et partagez vos connaissances professionnelles

Inscrivez-vous ou connectez-vous pour rejoindre votre communauté professionnelle.

Suivre

Why to use the VCB at high transmission system? Why we can not use ACB?

user-image
Question ajoutée par حسين عبدالهادي الصلوي , متدرب , المحطة الغازية توليد الطاقة الكهربائية
Date de publication: 2016/03/31
omar عبد العزيز
par omar عبد العزيز , رئيس قسم , الشركة المصرية لنقل الكهرباء

Actually the thing is vacuum has high arc queching property compare than air .becoz in VCB ,the die electric strength is equal to 8 times of air . That y always vaccum used as in HT breaker and air used as in LT in these breakers employ with high resistance intruption principle.

Ahmed Mohamed Ayesh Sarkhi
par Ahmed Mohamed Ayesh Sarkhi , HR,Payroll, Admin & Procurement General Manager , Alkasabi Travel & Tours

wait more details from our experts

 

Mohammed Alhemiary
par Mohammed Alhemiary , مهندس كهرباء , شركة تهامة للصناعة والتجارة

The main difference between the incisors is the insulation material used in extinguishing the electrical spark type

During the separation of the points of contact of the main boycotted

Cutter discharged from the Air Vacuum Circuit Breaker

Put out the spark in this kind of the mechanism (Circuit breaker) based on the principle unloading contactors room (Contacts)

A very high degree of up to 1000000000/1 Taurer under atmospheric pressure

To prevent the occurrence of air ionization which helps to bow occurrence

 

But this kind

Air circuit breaker

Of incisors does not use special techniques in order to extinguish the spark

This is because few have the ability

More Questions Like This

Avez-vous besoin d'aide pour créer un CV ayant les mots-clés recherchés par les employeurs?