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Temperature Of High Voltage Vacuum Circuit Breaker
Jun 26, 2017

  temperature of high voltage vacuum circuit breaker

  The temperature problem of high voltage vacuum circuit breaker has been widely concerned, and many breakthroughs have been made in hardware and software research, but the problem still exists, and the temperature rise of high voltage vacuum circuit breaker is introduced below.

  The circuit resistance of high voltage vacuum circuit breaker is the main heat source which affects temperature rise, and the circuit resistance of interrupter is usually accounted for more than 50 of the circuit resistance of high-voltage vacuum circuit breaker. Contact resistance is the main component of the circuit resistance of the vacuum interrupter, because the contact system is sealed in the vacuum interrupter, and the heat generated can only be dissipated by moving and static conducting rods to the exterior.

  The static end of the vacuum interrupter is connected directly with the static bracket, and the movable end is connected with the movable bracket through a conductive clamp and a soft connection. Although the moving end of the movement is conducive to the moving end of the heat dissipation, but due to the dynamic end of the link more, the heat conduction path is longer, so high voltage vacuum circuit breaker temperature rise of the highest point more concentrated in the dynamic conductive rod and the conductive clamp lap joints. In practical application, it is effective to solve the high temperature rise of high voltage vacuum circuit breaker by using the static end to get the heat dissipation components, and to force the contact gap to be derived from the static end, and the heat of the flow ends.

  High-voltage vacuum circuit breaker superior technical application characteristics, has been widely recognized by the power sector, the above-mentioned issues related to practical work for reference, in order to make full use of the high voltage vacuum circuit breaker technology advantages, to improve the overall equipment level of rural power grid is very beneficial.