High-voltage vacuum circuit breaker circuit resistance

High-voltage vacuum circuit breaker is the impact resistance of the primary heat source temperature, while the interrupter mcb circuit breaker voltage vacuum circuit breaker is usually accounted for loop resistance of 50 or more. Contact gap vacuum interrupter contact resistance is a major component of loop resistance, because the contact system is sealed in a vacuum interrupter chamber, the heat electric meter by the dynamic and static conductive rod to an external heat.
Static end vacuum interrupter is connected directly with the static frame, moving through the conductive clamp end, soft air circuit breaker with the movable support is connected. While the upward movement of the movable end is conducive to moving side cooling, but the move is connected more links, thermal path is longer, so the temperature rise of high-voltage vacuum circuit breakers are more concentrated in the highest point of the conductive movable conductive rod clamp overlap area. In practice, the effective use of static end element is conducive to heat, forcing more contact gap heat derived from the static end, the end of the heat flow, is to solve the high voltage vacuum circuit breaker effective measure temperature.