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0745648E热电偶输出模块
外部UZ Blk该输入阻止低阻抗起动器、中性点
电压启动器（U0），“弱”和反向测量。过电流启动器（OC）保持在活动外部Blk PSB
该输入阻止动力摆动阻止功能。
外部Blk O/C备份该输入阻止备用过电流保护（O/C备用保护）。
最后期限开关故障逻辑需要施加到该输入的信号，以向距离函数指示线路
在断路器闭合之前没有电压。用于接通故障逻辑，提供母线上的电压互感器。
手动关闭在手动闭合断路器之前，该信号启用切换到故障逻辑并阻止v.t.监控功能。扩展超范围逻辑允许在超出范围的区域。它通过二进制输入“Zextension”启用或“ZExtensionAR”。
为此，自动重合闸的输出“Zextension”函数连接到输入“ZExtensionAR”。
Isol开放存根保护需要此输入，以确定：隔离器是否打开（见第4.8.5.4节）。
ComRec外部信号“ComRec”（信号）需要此输入由PLC、光纤链路或点对点无线电接收）。失败
该输入向PLC通道具有的保护发出信号失败
1极该输入允许发生单相跳闸，并且与单相或三相自动重合闸配合使用计划。有关自动重合闸功能的连接，请参阅“自动重合闸”一节。ExtBlkSOTF在切换到故障逻辑的情况下，需要该输入自动重合闸后未启用。
请参阅“自动重合闸”一节，了解与的连接自动重合闸功能。
ExtBlkHF该输入阻止接收互裂信号。它是用于协调通信信道信号
可靠接地系统、距离保护和E/F保护使用相同的通道。它必须连接到E/F功能的“RecBlk”信号。
Ext UZ Blk
This input blocks the underimpedance starters, the neutral
voltage starter (U0), the measurement for ‘Weak’ and the
reverse measurement. The overcurrent starters (OC) remain in
operation.
Ext Blk PSB
This input blocks the power-swing blocking function.
Ext Blk O/C back-up
This input blocks the back-up overcurrent protection (O/C Backup Protection).
Deadline
The signal applied to this input is needed by the switch-ontofault logic to indicate to the distance function that the line is
without voltage before the circuit-breaker is closed. It is used for
the switch-onto-fault logic providing the v.t's are on the busbars.
Manual Close
Prior to manually closing the circuit-breaker, this signal enables
the switch-onto-fault logic and blocks the v.t. supervision function.ZExtension
The overreaching logic permits instantaneous tripping within the
overreaching zone. It is enabled via the binary input ‘Zextension’
or ‘ZExtensionAR’.
For this purpose, the output ‘Zextension’ of the auto-reclosure
function is connected to the input ‘ZExtensionAR’.
Isol open
This input is required by the STUB protection to ascertain
whether an isolator is open or not (see Section 4.8.5.4.).
ComRec
This input is needed for the external signal ‘ComRec’ (signal
received by PLC, optical fibre link or point-to-point radio).
ComFail
This input signals to the protection that the PLC channel has
failed.
1PolAR
This input permits single-phase tripping to take place and is
used in conjunction with single or three-phase auto-reclosure
schemes. Refer to the Section ‘Auto-reclosure’ for the connection to the auto-reclosure function.ExtBlkSOTF
This input is needed in cases where the switch-onto-fault logic is
not enabled after an auto-reclosure.
Refer to the Section ‘Auto-reclosure’ for the connection to the
auto-reclosure function.
ExtBlkHF
This input blocks the reception of an intertripping signal. It is
used for coordinating communication channel signals when in a
solidly grounded system, the distance protection and the E/F
protection use the same channel. It must be connected to the
‘RecBlk’ signal of the E/F function.
