How to Deal with the Non-full Phase Operation Switch Cannot Open and Close Operation?

How to Deal with the Non-full Phase Operation Switch Cannot Open and Close Operation?

(1) The bypass switch is connected to the non-all-phase switch in parallel. After the bypass switch is operated by DC, the loop is removed with the knife brake, so that the non-all-phase switch is cut off.

(2) Use the busbar switch in series with the non-full-phase switch, open the line switch on the opposite side, use the busbar switch to disconnect the load current, the line and non-full-phase switch power off, then open the two sides of the non-full-phase switch, so that the non-full-phase operating switch power off.

(3) If the components of the non-full-phase switch (lines, transformers, etc.) have conditional power failure, the opposite switch can be opened first, and then the non-full-phase operating switch can be power off according to the above method.

(4) If the component of the non-all-phase switch is a generator, the active and reactive power output of the generator should be rapidly reduced to zero, and then processed according to “1” and “2” of this article.