Arcteq AQ-S215, Instruction Manual

Page: 48 / 289

5 Functions
5.1 Functions included in AQ-S215
The AQ-S215 bay control IED includes the following functions as well as the number of stages in those
functions.
Table. 5.1 - 4. Protection functions of AQ-S215.
Name (number
of stages)
IEC ANSI Description
PGS (10) PGx>/< 99 Programmable stage
Table. 5.1 - 5. Control functions of AQ-S215.
Name IEC ANSI Description
SGS - - Setting group selection
OBJ - -
Object control and monitoring
(10 objects available)
CIN - -
Indicator object monitoring
(5 indicators available)
AR 0
→
1 79 Auto-recloser
PCS - - Programmable control switch
mA output - - Milliampere output control
SYN ΔV/Δa/Δf 25 Synchrocheck
Table. 5.1 - 6. Monitoring functions of AQ-S215.
Name IEC ANSI Description
CTS - - Current transformer supervision
VTS - 60 Voltage transformer supervision
DR - - Disturbance recorder
FLX - 21FL Fault locator
THD - - Total harmonic distortion
MR - - Measurement recorder
VREC - - Measurement value recorder
5.2 Measurements
5.2.1 Current measurement and scaling
The current measurement module (CT module, or CTM) is used for measuring the currents from
current transformers. The measured values are processed into the measurement database and they
are used by measurement and protection functions. It is essential to understand the concept of current
measurements to be able to get correct measurements.
A AQ Q-S215 -S215
Instruction manual
Version: 2.04
47