3328
52
CTS1
0
Alarm On
3329
52
CTS1
1
Alarm Off
3330
52
CTS1
2
Block On
3331
52
CTS1
3
Block Off
3456
54
CTS2
0
Alarm On
3457
54
CTS2
1
Alarm Off
3458
54
CTS2
2
Block On
3459
54
CTS2
3
Block Off
In the register of the CTS function recorded events are activated, blocked etc. “On” event process
data. In the table below is presented the structure of CTS function register content. This information is
available in 12 last recorded events for all provided instances separately.
Table. 5.6.1. - 208. Register content.
Date & Time
Event code
Trigger currents
Time to CTSact
Ftype
Used
SG
dd.mm.yyyy
hh:mm:ss.mss
3328-
3459 Descr.
Phase and residual
currents
sequence currents on
trigger time
Time remaining before
CTS is active
Monitored current
status code
1 - 8
5.6.2. Fuse failure VTS (60)
Fuse failure voltage transformer supervision is used to detect errors in the secondary circuit of the
voltage transformer. This signal is mostly used as alarming function or to disable functions that require
adequate voltage measurement.
Measured input values
The function block uses analog voltage measurement values. Function uses the fundamental frequency
magnitude of the voltage measurement inputs and calculated positive-, negative- and zero sequence
currents.
Table. 5.6.2. - 209. Analogic magnitudes used by the VTS function.
Signal
Description
Time base
U
L12
RMS
Fundamental RMS measurement of voltage U
L12
/V
5 ms
U
L23
RMS
Fundamental RMS measurement of voltage U
L23
/V
5 ms
U
L31
RMS
Fundamental RMS measurement of voltage U
L31
/V
5 ms
U
L1
RMS
Fundamental RMS measurement of voltage U
L1
/V
5 ms
U
L2
RMS
Fundamental RMS measurement of voltage U
L2
/V
5 ms
U
L3
RMS
Fundamental RMS measurement of voltage U
L3
/V
5 ms
U1P
Positive sequence voltage
5 ms
U2N
Negative sequence voltage
5 ms
UZ0
Zero sequence voltage
5 ms
U
L12
Ang
Fundamental angle of U
L12
voltage
5 ms
U
L23
Ang
Fundamental angle of U
L23
voltage
5 ms
AQ-T257
Instruction manual
Version: 2.00
© Arcteq Relays Ltd
264