Circuit breaker control circuit with anti-jump device

The so-called "jump" means that after the circuit breaker is closed by manual or automatic device, if the operation control switch does not reset or
the royal switch contacts or automatic device contacts are stuck, then the protective action causes the circuit breaker to trip, which will occur. Many times of "jumping together"
phenomenon. The so-called "anti-jump" means to use mechanical locking of the operating mechanism itself or take other measures on the operating wiring to prevent this
"jump" from occurring.
    The circuit is shown in Figure 6-65.
    In the figure, the control switch SA adopts LW2-2-la, 4, 6a, 40, 20/F8; the anti-trip relay KCF adopts DZB-
115 or 231 type, 220V; KM is the closing contactor; YC is the closing coil; YR is the trip coil; the green indicator light
Hi is the trip indication; the red indicator light H2 is the closing indication; QF is the auxiliary contact of the circuit breaker ; KS is the signal relay;
KC is the automatic device contact .