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. 5.5.2 - 137. Information displayed by the function.
Name
Range
Description
CBW LN
behaviour
1: On
2: Blocked
3: Test
4: Test/
Blocked
5: Off
Displays the mode of CBW block.
This parameter is visible only when
Allow setting of individual LN mode is enabled in
General menu.
CBW condition
0: Normal
1: Alarm1 On
2: Alarm2 On
Displays the status of the function.
Breaker
operations
-
Cumulative counter of "open" operations.
Alarm 1 counter
-
Alarm 1 operation counter.
Alarm 2 counter
-
Alarm 2 operation counter.
L1 Operations
left
-
Operations left for phase L1.
L2 Operations
left
-
Operations left for phase L2.
L3 Operations
left
-
Operations left for phase L3.
Events and registers
The circuit breaker wear function (abbreviated "CBW" in event block names) generates events and
registers from the status changes in Triggered, Alarm 1 and Alarm 2 signals as well as in internal pick-
up comparators. The user can select which event messages are stored in the main event buffer: ON,
OFF, or both.
The events triggered by the function are recorded with a time stamp and with process data values.
Table. 5.5.2 - 138. Event messages.
Event block name
Event names
CBW1
CBWEAR1 Triggered
CBW1
CBWEAR1 Alarm 1 ON
CBW1
CBWEAR1 Alarm 1 OFF
CBW1
CBWEAR1 Alarm 2 ON
CBW1
CBWEAR1 Alarm 2 OFF
The function registers its operation into the last twelve (12) time-stamped registers. The register of the
function records the ON event process data. The table below presents the structure of the function's
register content.
A
AQ
Q-T256
-T256
Instruction manual
Version: 2.06
218
© Arcteq Relays Ltd
IM00028
Содержание AQ-T256
Страница 1: ...AQ T256 Transformer protection IED Instruction manual...
Страница 2: ......
Страница 264: ...Figure 7 3 120 Example block scheme A AQ Q T256 T256 Instruction manual Version 2 06 262 Arcteq Relays Ltd IM00028...
Страница 284: ...Figure 8 13 141 Device installation A AQ Q T256 T256 Instruction manual Version 2 06 282 Arcteq Relays Ltd IM00028...