Figure 202: Operation in “Intermittent EF” mode, Peak counter limit = 3
Blocking logic
There are three operation modes in the blocking functionality. The operation
modes are controlled by the
BLOCK
input and the global setting Configuration >
System > Blocking mode which selects the blocking mode. The
BLOCK
input can be
controlled by a binary input, a horizontal communication input or an internal signal
of the protection relay's program. The influence of the
BLOCK
signal activation is
preselected with the global setting
Blocking mode.
The
Blocking mode setting has three blocking methods. In the "Freeze timers"
mode, the operation timer is frozen to the prevailing value. In the "Block all" mode,
the whole function is blocked and the timers are reset. In the "Block OPERATE
output" mode, the function operates normally but the
OPERATE
output is not
activated.
Protection functions
1MRS758755 C
404
REC615 & RER615
Technical Manual
Содержание Relion REC615
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