主營產(chǎn)品
PLC可編程控制器模塊,DCS卡件,ESD系統(tǒng)卡件,振動監(jiān)測系統(tǒng)卡件,汽輪機控制系統(tǒng)模塊,燃氣發(fā)電機備件等,優(yōu)勢品牌:Allen Bradley、BentlyNevada、ABB、Emerson Ovation、Honeywell DCS、Rockwell ICS Triplex、FOXBORO、Schneider PLC、GE Fanuc、Motorola、HIMA、TRICONEX、Prosoft等各種進口工業(yè)零部件
產(chǎn)品廣泛應(yīng)用于冶金、石油天然氣、玻璃制造業(yè)、鋁業(yè)、石油化工、煤礦、造紙印刷、紡織印染、機械、電子制造、汽車制造、塑膠機械、電力、水利、水處理/環(huán)保、鍋爐供暖、能源、輸配電等等
SACE750090R0002,操作面板
跟隨器“Blk.toFlwr”閉鎖重合閘
主重合閘功能發(fā)送激活的“Blk”。toFlwr’信號到跟隨者的桅桿。如果主控裝置的重合閘嘗試不成功,則noSucc’I/P將阻止跟隨器的重合閘如由其Def的生成所指示的。跳閘輸出。
3.5.32.6.雙工邏輯還包括用于帶有兩個斷路器的線路的雙工邏輯(見圖3.5.32.7)。
結(jié)合雙工方案,請注意以下事項:注:其中一個斷路器必須設(shè)置為低優(yōu)先級。
為了使方案正確運行,相應(yīng)的CB信號必須連接到“CB開路”和“CB2開路”
雙工邏輯輸入(設(shè)置為“關(guān)閉”將禁用雙工邏輯)。如果單獨的“CB就緒”和斷路器不提供“斷路器斷開”信號:
連接兩個斷路器信號觸點
“CB就緒”(氣壓或彈簧充氣)和“CB關(guān)閉”串聯(lián)。為此,必須設(shè)置“t關(guān)閉”
大于最大彈簧充電時間,以在成功重合閘的情況下抑制最終跳閘信號。將組合信號分配給相應(yīng)的“CB就緒”輸入。分配相同的信號,但反向至相應(yīng)的“斷路器開路”輸入。如果在“t Oper”過去之前發(fā)出跳閘信號
死區(qū)時間是跳閘信號(“跳閘斷路器”)與以及關(guān)閉信號(“關(guān)閉CB”)。
必須為每個重合閘循環(huán)單獨輸入所需的死區(qū)時間。這需要設(shè)置以下參數(shù):“t死1 1P”,“t死1 3P”,“t死亡2”,“t死亡3”和“t死亡4”。提供外部切換死區(qū)時間第一次(快速)重合閘嘗試的死區(qū)1 1P'和“死區(qū)1 3P”至第二設(shè)置。相應(yīng)的附加時間段
可通過參數(shù)“t死1 Ext”設(shè)置,并通過二進制I/P“擴展t1”激活。
第二。,第三。第四。重合閘嘗試始終為三相。
延長死區(qū)時間“不死區(qū)1 Ext”
該時間為延長死區(qū)時間提供了便利(例如通信信道可能有缺陷或存在冗余具有2個自動重合閘功能的方案)。延伸的死亡時間由二進制輸入“擴展t1”啟用。
Blocking reclosure by the follower ‘Blk.toFlwr’
The master reclosure function sends an active ‘Blk.toFlwr’ signal
to the follower ‘Mast.noSucc’ I/P to block reclosure by the follower, if the reclosure attempt by the master was unsuccessful
as indicated by the generation of its ‘Def.Trip’ output.
3.5.32.6. Duplex logic
A duplex logic for a line with two circuit-breakers is also included
(see Fig. 3.5.32.7).
Observe the following in connection with a duplex scheme:
Note: One of the breakers has to be set to low priority.
For the scheme to operate correctly, the corresponding CB
signals must be connected to the ‘CB open’ and ‘CB2 open’
inputs for the duplex logic (setting to ‘off’ disables the duplex
logic). Follow the procedure below, if separate ‘CB ready’ and
‘CB open’ signals are not available from the circuit-breakers:
Connect the two circuit-breaker signalling contacts
‘CB ready’ (air-pressure or spring charging) and
‘CB closed’ in series. For this, ‘t Close’ must be set
longer than the maximum spring charging time to suppress the definitive trip signal in the case of a successful reclosure.
Assign the combined signals to the corresponding
‘CB ready’ inputs.
Assign the same signals but inverted to the corresponding ‘CB open’ inputs.Provided the trip signal is issued before ‘t Oper’ elapses, the
dead time is the period between the tripping signal (‘Trip CB’)
and the close signal (‘Close CB’).
The required dead time must be entered separately for each reclosure cycle. This necessitates setting the following parameters:
't Dead1 1P’, ‘t Dead1 3P’, ‘t Dead 2’, ‘t Dead 3’ and ‘t Dead 4’.
Provision is made for externally switching the dead times ‘t
Dead1 1P’ and ‘t Dead1 3P’ for the first (fast) reclosure attempt
to a second setting. The corresponding additional time period
can be set with the aid of the parameter ‘t Dead 1 Ext’ and activated via the binary I/P ‘Extend t1’.
The 2nd., 3rd. and 4th. reclosure attempts are always threephase.
Extended dead time ‘t Dead 1 Ext’
This time provides facility for extending the dead time (e.g. should
the communications channel be defective or for a redundant
scheme with 2 auto-reclosure functions). The extended dead
time is enabled by the binary input ‘Extend t1’.