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DEIF LSU-112DG控制器
單相接地跳閘和重合閘故障(單相死區(qū)時(shí)間),相位故障無(wú)重合閘
1.1P-3P單相跳閘后接三相約20 ms后跳閘,接地故障的三相重合閘(三相由單相跳閘啟動(dòng)的死區(qū)時(shí)間),
三相故障無(wú)重合閘1.接地1P3P-3P三相跳閘和重合閘和相位故障(三相死區(qū)時(shí)間)
1.1P3P-1P3P單相接地跳閘和重合閘故障(單相死區(qū)時(shí)間)、三相跳閘和相故障重合閘(三相死區(qū)時(shí)間)
外部選擇:通過(guò)二進(jìn)制輸入進(jìn)行外部選擇1P_ 1P、MD1_,
MD1_EXT_1P3P_3P和自最后一次重合閘嘗試下降沿起的MD1_EX_1P3P_1P3周期(CB恢復(fù)時(shí)間),在此期間,自動(dòng)重合閘功能為被阻止,之后該功能被重置。
如果歧視和死區(qū)時(shí)間,一段時(shí)間從另一段時(shí)間的瞬間開(kāi)始兩次之間發(fā)生的跳閘。
如果保護(hù)在以下情況下跳閘,回收計(jì)時(shí)器也會(huì)啟動(dòng):故障持續(xù)時(shí)間“t Oper”已過(guò)。條件阻塞信號(hào)的I/P。
阻塞僅在AR循環(huán)未進(jìn)行時(shí)發(fā)生。
如果不需要,則設(shè)置為“off”(“F”或“False”)。當(dāng)跳閘由距離保護(hù)SOTF邏輯或方向E/F PLC信號(hào),相應(yīng)的信號(hào)可以連接到該I/P以防止自動(dòng)重合閘。手動(dòng)關(guān)閉阻止由手動(dòng)斷路器關(guān)閉信號(hào)激勵(lì)的I/P。
即使是正在進(jìn)行的自動(dòng)重合閘循環(huán)也會(huì)立即被施加到該輸入的信號(hào)阻止。
如果不需要,則設(shè)置為“off”(“F”或“False”)。抑制Inp。
I/P,用于在冗余狀態(tài)下阻止跟隨器重合閘功能
計(jì)劃從主對(duì)象的末端阻止跟隨器關(guān)閉信號(hào),直到回收時(shí)間結(jié)束。
如果不需要,則設(shè)置為“off”(“F”或“False”)。擴(kuò)展t1
有條件延長(zhǎng)死區(qū)時(shí)間的輸入(單和三相)用于第一次(快速)重合閘。
如果不需要,則設(shè)置為“off”(“F”或“False”)。
single-phase trip and reclosure for earth
faults (single-phase dead time), no reclosure for phase faults
1. 1P-3P single-phase trip followed by three phase
trip after approx. 20 ms, three-phase reclosure for earth faults (three-phase
dead time initiated by single-phase trip),
no reclosure for -phase faults
1. 1P3P-3P three-phase trip and reclosure for earth
and phase faults (three-phase dead time)
1. 1P3P-1P3P single-phase trip and reclosure for earth
faults (single-phase dead time), threephase trip and reclosure for phase faults
(three-phase dead time)
Ext.Selection External selection by the binary inputs
MD1_EXT_1P_1P, MD1_EXT_1P_3P,
MD1_EXT_1P3P_3P and
MD1_EX_1P3P_1P3PPeriod (CB recovery time) from the falling edge of the last reclosure attempt during which the autoreclosure function is
blocked and after which the function is reset.
In the event of an evolving fault between discrimination and
dead times, the period commences at the instant of another
trip occurring between the two times.
The reclaim timer is also started if the protection trips after
the fault duration time ‘t Oper’ has elapsed.I/P for a conditional blocking signal.
Blocking only takes place providing an AR cycle is not in progress.
Set to ‘off’ (‘F’ or ‘False’), if not needed.
When tripping is by the distance protection SOTF logic or a
directional E/F PLC signal, the corresponding signals can be
connected to this I/P to prevent auto-reclosure.
Manual Close
Blocking I/P excited by the manual CB close signal.
Even an autoreclosure cycle that is in progress is immediately blocked by a signal applied to this input.
Set to ‘off’ (‘F’ or ‘False’), if not needed.
Inhibit Inp.
I/P for blocking the follower reclosure function in a redundant
scheme. The follower is blocked from the end of the master
closing signal until the end of the reclaim time.
Set to ‘off’ (‘F’ or ‘False’), if not needed.
Extend t1
Input for conditionally extending the dead time (single and
three-phase) for the first (fast) reclosure.
Set to ‘off’ (‘F’ or ‘False’), if not needed.