Arcteq AQ-S215, Instruction Manual

Page: 187 / 289

• measured and pre-processed current magnitudes.
The output signals 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
two (2) output signal. The time stamp resolution is 1 ms. The function also provides a resettable
cumulative counter for the CTS ALARM and BLOCKED events.
The following figure presents a simplified function block diagram of the current transformer supervision
function.
Figure. 5.5.1 - 122. Simplified function block diagram of the CTS function.
Measured input
The function block uses analog current measurement values, the RMS magnitude of the current
measurement inputs, and the calculated positive and negative sequence currents. The user can select
what is used for the residual current measurement: nothing, the I01 RMS measurement, or the I02
RMS measurement.
A AQ Q-S215 -S215
Instruction manual
Version: 2.04
186