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AI830A熱電偶輸入模塊
兩個信號輸出“啟動SOTF”和“跳閘SOTF”,與切換到故障邏輯相關“啟動SOTF”用于阻止自動重合閘功能和“跳閘SOTF”信號跳閘是切換到故障邏輯的結果。
SOTF 10秒參數“SOTF10sec”確定在以下情況下是否啟用欠壓功能和二進制輸入“截止日期”
10秒(“開啟”)或僅200毫秒(“關閉”)后“off”表示切換快速自動重合閘(快速或)后發(fā)生故障。絆倒因此,案例僅基于啟動者的決定。t1EvolFaults
參數“t1EvolFaults”的設置決定了時間在此期間,一旦檢測到正在發(fā)展的故障,就會導致三相跳閘。
3.5.31.8.動力擺動閉鎖(見第4.8.6節(jié)。)
只有參數“tPSblbock”表示保持功率擺動阻斷信號時,必須在“電源擺動阻斷”子菜單。設置范圍為0
以0.01的步長設置為10秒。最遲在這一次的結束。
當“tPSblock”為設置為零或邏輯“1”應用于二進制輸入“Ext Blk”PSB’。
3.5.31.9.c.t.和v.t.輸入的分配
(見第5.5.4.1節(jié)。)分配c.t.和v.t.信道的參數被分組在“模擬(CT/VT通道)”子菜單中。
ABB瑞士有限公司二進制輸入分配(見第5.5.4.4節(jié)。)
用于分配二進制輸入的參數分組在“二進制輸入”子菜單。
所有二進制輸入可分配給外部信號或其他功能的輸出。ChgMeasDir
向該輸入端施加信號會反轉整個距離保護功能(所有區(qū)域)的測量方向。外部大樓區(qū)
該輸入阻止整個距離保護功能。通過“Dist blocked”發(fā)出阻塞信號,12秒后通過
“DelDistBlk”。僅備用過電流保護(I/O/C)然后保持活動。
Two signalling outputs ‘Start SOTF’ and ‘Trip SOTF’ are associated with the switch-onto-fault logic. ‘Start SOTF’ is intended for
blocking the auto-reclosure function and ‘Trip SOTF’ signals that
tripping took place as a result of the switch-onto-fault logic.
SOTF 10 sec
The parameter ‘SOTF10sec’ determines whether the undervoltage function and the binary input ‘Deadline’ are enabled after
10 s (‘on’) or after just 200 ms (‘off’). ‘off’ indicates switching
onto a fault after fast auto-reclosure (Fast OR). Tripping in this
case is thus based on the decisions of the starters alone.
t1EvolFaults
The setting of the parameter ‘t1EvolFaults’ determines the time
during which an evolving fault once detected results in a threephase trip.
3.5.31.8. Power-swing blocking
(see Section 4.8.6.)
Only the parameter ‘tPSblbock’ for the time during which the
power-swing blocking signal is maintained has to be set in the
‘POWER-SWING BLOCKING’ sub-menu. The setting range is 0
to 10 s in steps of 0.01. Tripping is enabled again at the latest at
the end of this time.
The power-swing blocking function is disabled when ‘tPSblock’ is
set to zero or a logical ‘1’ is applied to the binary input ‘Ext Blk
PSB’.
3.5.31.9. Allocation of c.t. and v.t. inputs
(see Section 5.5.4.1.)
The parameters for allocating c.t. and v.t. channels are grouped
in the ‘ANALOGUE (CT/VT CHANNELS’ sub-menu.
ABB Switzerland LtAllocation of binary inputs
(see Section 5.5.4.4.)
The parameters for allocating binary inputs are grouped in the
‘BINARY INPUTS’ sub-menu.
All binary inputs can be allocated to external signals or the outputs of other functions.
ChgMeasDir
Applying a signal to this input reverses the direction of measurement for the entire distance protection function (all zones).
Ext Blk Dist
This input blocks the entire distance protection function.
Blocking is signalled by “Dist blocked” and after 12 s by
“DelDistBlk”. Only the back-up overcurrent protection (I O/C)
then remains active.