The pick-up activation of the function is not directly equal to the START signal generation of the
function. The START signal is allowed if the blocking condition is not active. When the activation of the
pick-up is based on binary signals, the activation happens immediately after the monitored signal is
activated.
The voltage transformer supervision can also report several different states of the measured voltage.
These can be seen in the function's
INFO menu.
Name
Description
Bus dead
No voltages.
Bus Live VTS Ok
All of the voltages are within the set limits.
Bus Live VTS Ok SEQ Rev
All of the voltages are within the set limits BUT
BUT the voltages are in a reversed sequence.
Bus Live VTS Ok SEQ Undef
Voltages are within the set limits BUT
BUT the sequence cannot be defined.
Bus Live VTS problem
Any of the VTS pick-up conditions are met.
Read-only parameters
The relay's
Info page displays useful, real-time information on the state of the protection function. It is
accessed either through the relay's HMI display, or through the setting tool software when it is
connected to the relay and its Live Edit mode is active.
Table. 5.6.2 - 180. Information displayed by the function.
Name
Range
Step
Description
VTS
condition
0: Normal
1: Start
2: VTLinefail
3: VTBusfail
4: Blocked
-
Displays status of the monitoring function.
Bus
voltages
0: Bus dead
1: Bus Live VTS Ok
SEQ Ok
2: Bus Live VTS Ok
SEQ Rev
3: Bus Live VTS Ok
SEQ Undef
4: Bus Live VTS
problem
-
Displays the status of bus voltages.
Expected
operating
time
0.000...1800.000s
0.005s Displays the expected operating time when a fault occurs.
Time
remaining
to trip
-1800.000...1800.000s 0.005s When the function has detected a fault and counts down time towards a
operation, this displays how much time is left before operation occurs.
Function blocking
The block signal is checked in the beginning of each program cycle. The blocking signal is received
from the blocking matrix in the function's dedicated input. If the blocking signal is not activated when
the pick-up element activates, a START signal is generated and the function proceeds to the time
characteristics calculation.
If the blocking signal is active when the pick-up element activates, a BLOCKED signal is generated and
the function does not process the situation further. If the START function has been activated before the
blocking signal, it resets and the release time characteristics are processed similarly to when the pick-
up signal is reset.
A
AQ
Q-C215
-C215
Instruction manual
Version: 2.07
© Arcteq Relays Ltd
IM00040
237
Содержание AQ-C215
Страница 1: ...AQ C215 Capacitor bank protection IED Instruction manual ...
Страница 2: ......
Страница 297: ...Figure 7 4 179 Example block scheme A AQ Q C215 C215 Instruction manual Version 2 07 Arcteq Relays Ltd IM00040 295 ...
Страница 318: ...Figure 8 14 200 Device installation A AQ Q C215 C215 Instruction manual Version 2 07 316 Arcteq Relays Ltd IM00040 ...
Страница 347: ...10 Ordering information A AQ Q C215 C215 Instruction manual Version 2 07 Arcteq Relays Ltd IM00040 345 ...