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0745648E熱電偶輸出模塊
外部UZ Blk該輸入阻止低阻抗起動器、中性點
電壓啟動器（U0），“弱”和反向測量。過電流啟動器（OC）保持在活動外部Blk PSB
該輸入阻止動力擺動阻止功能。
外部Blk O/C備份該輸入阻止備用過電流保護（O/C備用保護）。
最后期限開關故障邏輯需要施加到該輸入的信號，以向距離函數(shù)指示線路
在斷路器閉合之前沒有電壓。用于接通故障邏輯，提供母線上的電壓互感器。
手動關閉在手動閉合斷路器之前，該信號啟用切換到故障邏輯并阻止v.t.監(jiān)控功能。擴展超范圍邏輯允許在超出范圍的區(qū)域。它通過二進制輸入“Zextension”啟用或“ZExtensionAR”。
為此，自動重合閘的輸出“Zextension”函數(shù)連接到輸入“ZExtensionAR”。
Isol開放存根保護需要此輸入，以確定：隔離器是否打開（見第4.8.5.4節(jié)）。
ComRec外部信號“ComRec”（信號）需要此輸入由PLC、光纖鏈路或點對點無線電接收）。失敗
該輸入向PLC通道具有的保護發(fā)出信號失敗
1極該輸入允許發(fā)生單相跳閘，并且與單相或三相自動重合閘配合使用計劃。有關自動重合閘功能的連接，請參閱“自動重合閘”一節(jié)。ExtBlkSOTF在切換到故障邏輯的情況下，需要該輸入自動重合閘后未啟用。
請參閱“自動重合閘”一節(jié)，了解與的連接自動重合閘功能。
ExtBlkHF該輸入阻止接收互裂信號。它是用于協(xié)調(diào)通信信道信號
可靠接地系統(tǒng)、距離保護和E/F保護使用相同的通道。它必須連接到E/F功能的“RecBlk”信號。
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.
