بڕاوەکەی ئاسکی پێکراو لە نەخشتەی جیئیس

Dahûyên Ji Digerê Pêşanîn bi Tank Yek Bîrînî yên di VCB de

1. Vacuum breakers rekeb hûn dikarin biguherînin media insulation yên din jî û bisek SF6. Heke gasên insulation yên wek dry air, nitrogen, an CO2 hilbijartin, performansa insulation ya wan dibe tevdişî ji performansa SF6 da li ser dema pêkan.

2. Stray capacitances to the tank negatively impact voltage division within the vacuum interrupter (VI). This may necessitate a larger, higher - rated - voltage VI.

Berhemên Di Hêla Applykirina VCB di GIS de

• Stray capacitances from the VI (primarily the shield) to the vessel cause an inhomogeneous voltage distribution.

• The reduced distance to ground results in higher electric field stress within the vacuum interrupter.

• The bellows must operate against high - pressure gas, increasing the drive energy and subjecting the bellows to greater mechanical stress.

• Due to encapsulation, heat exchange to the outside is more pronounced for VCB, leading to increased copper stem diameters.

• The length of the VI can be smaller than that of an SF6 interrupter.

• The insulating gas of VCB can be selected independently.

• The GIS enclosures (except for cast aluminum ones) will mitigate X - ray effects to the outside.

Wêne wisa breakerên circuit high - voltage yên dead - tank-type bi gas.