The inputs for the function are the following:
• operating mode selections
• setting parameters
• digital inputs and logic signals
• measured and pre-processed current magnitudes.
The function outputs the START, TRIP and BLOCKED signals which can be used for direct I/O
controlling and user logic programming. The function generates general time-stamped ON/OFF events
to the common event buffer from each of the three (3) output signals. In the instant operating mode the
function outputs START and TRIP events simultaneously with an equivalent time stamp. The time stamp
resolution is 1 ms. The function also provides a resettable cumulative counter for the START, TRIP and
BLOCKED events.
The following figure presents a simplified function block diagram of the overvoltage function.
Figure. 5.3.8 - 107. Simplified function block diagram of the U> function.
Measured input
The function block uses analog voltage measurement values. The monitored magnitudes are equal to
RMS values. A -20 ms averaged value of the selected magnitude is used for pre-fault data registering.
Table. 5.3.8 - 91. Measurement inputs of the the U> function.
Signal
Description
Time base
U
L12
RMS
RMS measurement of voltage U
L12
/V
5 ms
U
L23
RMS
RMS measurement of voltage U
L23
/V
5 ms
U
L31
RMS
RMS measurement of voltage U
L31
/V
5 ms
U
L1
RMS
RMS measurement of voltage U
L1
/V
5 ms
U
L2
RMS
RMS measurement of voltage U
L2
/V
5 ms
U
L3
RMS
RMS measurement of voltage U
L3
/V
5 ms
A
AQ
Q-C213
-C213
Instruction manual
Version: 2.04
144
Содержание AQ-C213
Страница 1: ...AQ C213 Capacitor bank protection IED Instruction manual ...
Страница 308: ...Figure 7 4 184 Example block scheme A AQ Q C213 C213 Instruction manual Version 2 04 307 ...
Страница 330: ...Figure 8 14 207 Panel cutout dimensions and device spacing A AQ Q C213 C213 Instruction manual Version 2 04 329 ...