Pulse silent operation total protector circuit c

The pulse silent operation total protector is a high-tech product. It is suitable for low-voltage power distribution systems with three-phase four-wire neutral points directly grounded. It is used for
personal electric shock protection and electric leakage protection. Cooperating with the AC contactor, it has the functions of silencing the AC coil and increasing the service life of the coil.
    The pulse protector refers to the electric shock pulse current (sudden current) that can operate at any angle within all phases, which is fundamentally different from line leakage .
It can automatically distinguish between electric shock current and leakage current. When the line leakage current ≥ 400mA, the protector has a blocking function
to prevent the line from sending power and protect the integrity of the line. It also has a reclosing function. When the sudden current is greater than 15mA and less than 60mA,
it can automatically cut off the power supply in 0.1s, and then automatically close and send power after 25s to ensure smooth lines and personal safety. The overall appearance of the machine is shown in Figure 14-9. shown.
The picture shows the total protection circuit and branch protection circuit .