Name
IEC
ANSI
Description
OBJ
-
-
Object control and monitoring
(5 objects available)
SOTF
SOTF
-
Switch-on-to-fault
PCS
-
-
Programmable control switch
mA output
-
-
Milliampere output control
Table. 5.1 - 6. Monitoring functions of AQ-C213.
Name
IEC
ANSI
Description
CTS
-
-
Current transformer supervision
VTS
-
60
Voltage transformer supervision
DR
-
-
Disturbance recorder
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-C213
-C213
Instruction manual
Version: 2.04
53