Indoor 33kv 11kv Vacuum Circuit Breaker 630a 1250a DC Fixed Withdraw Type

A circuit breaker is a device that interrupts an electrical circuit to avoid unwanted currents, caused by a short circuit, which generally results from an overload. Its basic functionality is to interrupt the flow of current after a fault is detected. A vacuum circuit breaker is such kind of circuit breaker where the arc quenching takes place in vacuum. The technology is suitable for mainly medium voltage application. For higher voltage vacuum technology has been developed but not commercially viable. The operation of opening and closing of current carrying contacts and associated arc interruption take place in a vacuum chamber in the breaker which is called vacuum interrupter. The vacuum interrupter consists of a steel arc chamber in the centre symmetrically arranged ceramic insulators. The vacuum pressure inside a vacuum interrupter is normally maintained at 10 – 6 bar.The material used for current carrying contacts plays an important role in the performance of the Vacuum circuit breaker. Cu-Cr is the most ideal material to make VCB contacts.

XK 11kv 630a 1250a DC fixed withdraw type vacuum circuit breaker vcb

INTRODUCTION

Zhejiang Xinkou Power Equipment Co.,Ltd, is a high-tech enterprise specializing in developping, design, manufacture, sales, import and export of low voltage and high voltage electrical products.

Company main products: indoor and outdoor high voltage vacuum circuit breaker, load break switches, disconnecting switches, drop out fuse cutour, lightning arrester, etc. All products comply with the requirements of GB, IEC, ANSI and other international standard.

SERVICE

We have a very professional sales team which can offer you the best service and answer you very professional questions, so you can feel very comfortable before you buy machine from us. As is known to all of us, after-sale service is the most important to all industries. Our company has been trying our best to build a very professional and high-caliber after-sale service team which can solve all problems efficiently in the future.