B7 Vacuum Interrupters CONTENTS Features····················································································· B7-02 Structure & Operating Principle············································· B7-04 Ratings·······························

Vacuum Interrupters VITZRO EM Vacuum Interrupter (V.I) is a core part that composes the breaking part of medium-voltage VCB. Generally, it is a satisfactory conductor to supply power and it promptly interrupts the current in case of an overload and short circuit faults to ensure the insulation. It is the most ideal, arc-extinguishing device. Certification It is a high-performing, highly reliable product and its electrical and mechanical cycle has improved. Its performance is optimized by applying the vacuum technology accumulated for more than 25 years. Through a single compression processing...

Structure & Operating Principle Structure The basic structure of a general V.I is shown below and it consists of a fixed lead, a movable lead, contacts, an arc shield, metal bellows and twist protection plate. VITZRO EM V.I maintains a highly reliable, high-vacuum state due to the automation process and its internal pressure is 5×10-7 torr under. Movable Lead Twist Protection Plate Metal Bellows Ceramic Insulation Fixed Lead

Vacuum Interrupters V.I Current Breaking Principle. Operating Principle When the contacts that were conducting current to the inner V.I are physically opened, a vacuum arc is generated between the contacts and this continues until the next zero current point. The arc under the influence of vacuum is affected by the magnetic field that is generated by contact structure and shape and it diffuses the arc to the next zero current point or drives to the random direction. That is, the first arc generated by the inductive magnetic field formed by the contact structure and shape forms a single contact...

Vacuum Interrupter (V.I) is a core part that mainly composes the contact part of medium-voltage VCB and it is a product that requires reliability even at high-voltage current that is generated due to the overload and short circuit faults. VITZRO EM designs and manufactures V.I and uses a finealumina ceramic tube that has an excellent vacuum-sealed characteristic and a mechanical characteristic for the production of highly reliable V.I. Also, Cu-Cr contacts are adopted to improve the high-voltage insulation and breaking capability. Applied Range Additional insuation Power Frequency Withstand Voltage...

Vacuum Interrupters Applied Product Vacuum Circuit Breaker, VCB Vacuum Contactor Switch, VCS Eco-friendly Gas Insulated Switchgear, ECO-GIS

Vacuum Interrupters

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