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WES5302-111燃机输入卡件
带检查的断电线路“死线”（“死线2”）
同步“synchroChck”（“synchroChck2”）在发出“关闭CB”（或“关闭CB2”）指令之前，“死线”或“同步”I/P（或“死线2”或双工方案中的“synchroChck2”必须位于逻辑“1”。
逻辑：[（“同步”和“CO就绪”）或“死线”或“ExtSCBypas”]
逻辑：[（'synchroChck2'和'CO ready 2'）或'Dead Line 2'或“ExtSCBypas”]
外部阻塞“ExtBlkAR”和“CondBlkAR”重合闸功能始终由激活的“ExtBlkAR”闭锁I/P。
激活的“CondBlkAR”I/P仅会阻止该功能，前提是重合闸循环未运行（即“AR in prog.”信号处于逻辑“0”）。第二个。
需要Blk AR’信号来防止重合闸循环
在“t”期间发生的首次跳闸不需要重合闸时歌剧院。例如，开关故障（SOTF）保护或定向E/F保护通过PLC。为防止软启动自动重合闸，距离
保护“软启动”信号必须连接到“CondBlkAR”输入。“手动关闭”
重合闸功能立即被闭锁（用于闭锁时间“t AR块”）通过“手动关闭”信号。这个信号也是
超范围逻辑需要将“ZExtension”信号切换为“on”。外部同步检查旁路信号“ExtSCBypas”
该I/P提供了绕过“同步”和启用I/P的“CO就绪”（或用于CB2的“同步CHCK2”和“CO就绪2”）。
它仅在第一次快速三相或单相重合闸尝试时激活。
死区时间“延长t1”的外部延长
“扩展t1”I/P处的逻辑“1”扩展死区时间“t Dead1”
第一次通过设置“t Dead1 Ext”设置“1P”和“t dead 1 3P”（快速）重合闸尝试。这可能是必要的，例如通信信道故障或冗余闭合CB和信号输出时
最重要的自动重合闸输出是“闭合CB”必须分配给重型辅助O/P的命令转发提供了该和14个其他重型和信号O/P。
De-energised line ‘Dead Line’ (‘Dead Line 2’) with checking
of synchronism ‘synchroChck’ (‘synchroChck2’)
Before the ‘Close CB’ (or ‘Close CB2’) instruction can be issued,
either the ‘Dead line’ or the ‘synchroChck’ I/P (or ‘Dead line 2’ or
‘synchroChck2’ in a duplex scheme) must be at logical ‘1’.
Logic: [(‘synchroChck’ AND ‘CO ready’) OR ‘Dead Line’ OR
‘ExtSCBypas']
Logic: [(‘synchroChck2’ AND ‘CO ready 2’) OR ‘Dead Line 2’ OR
‘ExtSCBypas']
External blocking ‘ExtBlkAR’ and ‘CondBlkAR'
The reclosure function is always blocked by an active ‘ExtBlkAR’
I/P.
An active ‘CondBlkAR’ I/P will only block the function, providing
a reclosure cycle is not running (i.e. the ‘AR in prog.’ signal is at
logical ‘0’).
The ‘Cond.Blk AR’ signal is needed to prevent a reclosure cycle,
when no reclosure is wanted for a first trip that occurs during ‘t
Oper’. This is the case, for example, for trips by the switch-ontofault (SOTF) protection or by a directional E/F protection via
PLC.To prevent the SOFT from initiating auto-reclosure, the distance
protection ‘SOFT start’ signal must be connected to the
‘CondBlkAR’ input.
'Manual close'
The reclosure function is immediately blocked (for the blocking
time ‘t AR Block’) by a ‘Manual close’ signal. This signal is also
needed for the overreaching logic to switch the ‘ZExtension’ signal to ‘on’.
External synchrocheck bypass signal ‘ExtSCBypas'
This I/P provides facility for bypassing the ‘synchroChck’ and
‘CO Ready’ (or SynchroChck2’ and ‘CO Ready 2’ for CB2) enabling I/P’s.
It is only active for the first fast three-phase or single-phase reclosure attempt.
External extension of the dead time ‘Extend t1'
A logical ‘1’ at the ‘Extend t1’ I/P extends the dead times ‘t Dead1
1P’ and ‘t Dead1 3P’ by the setting ‘t Dead1 Ext’ for the first
(fast) reclosure attempt. This could be necessary, for example, in
the event of a communication channel failure or in a redundant Close CB and signalling outputs
The most important auto-reclosure output is the ‘Close CB’
command which must be assigned to a heavy-duty auxiliary O/P
relay. This and 14 other heavy-duty and signalling O/P’s are provided.
