MENTOR 12 USER’S MANUAL SECTION 3: ADVANCED CONTROL – Page 52
POST-FAULT, in terms of its electrical parameters (values
and angles) and in the state of the binary outputs (to
simulate the state of any device outside the relay such as
the high voltage switch). Furthermore, the maximum duration
of this state can also be configured in the relative box
indicated on the function graphic. After the preset time
elapses all the outputs disconnect and change to
deactivated state.
The Post-fault state starts when the switch time, if any, ends,
when the trip occurs in the Fault state, or when the time
defined for the Fault state has elapsed, without any trip.
The Post-Fault state is important during the test, as it
enables us to simulate the real position of the protection and
define its performance depending on whether it is situated in
BARS (BUS) where the healthy voltages are maintained, or
on the LINE side, where these voltages disappear when the
switch is applied.
You can access the screen to configure these values by
pressing the BLUE colored button, marked “POST-fault”. A
screen appears where you must enter the desired levels and
angles for the power outputs (See Output Value Selection in
Section 1 Basic Control) and also the logic states for the
digital outputs.