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?xì)獍l(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(jìn)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
ULTRA SLIMPAKG448-0002隔離放大器
c.t.輸入(I0P)的接線方式應(yīng)與中性電流輸入(I0)(例如,端子9和10對應(yīng)分別連接到端子7和8)。相位模式2)系統(tǒng)中跨國家故障的相位偏好消弧線圈和不接地系統(tǒng):
牢固接地(無相位優(yōu)先)t1TransBlTRANSBL(瞬態(tài)阻塞)模式的時間1。延遲檢測到反向故障后的故障。
t2TransBl
TRANSBL(瞬態(tài)阻塞)模式的時間2。這個故障發(fā)生后,邏輯在時間t2內(nèi)保持啟用在相反方向上檢測到。
t1EvolFaults識別演變故障的時間(三相跳閘在此時間設(shè)置期間發(fā)生故障)。
動力擺動閉鎖(見第3.5.31.8節(jié)和第4.8.6節(jié))
tPSblock
功率擺動阻塞的最長時間功能是有效的。該功能在設(shè)置為時禁用零
二進(jìn)制輸入(見第3.5.31.10節(jié))ChgMeasDir用于改變測量方向的輸入。
外部大樓區(qū)阻斷距離保護功能的輸入:
F: -未被阻止
xx:-所有二進(jìn)制I/P(或保護功能的O/P)。分機UZ Blk 1)
阻斷低阻抗起動器的輸入:
F: -啟用低阻抗起動器
T: -禁用低阻抗起動器
xx:-所有二進(jìn)制I/P(或保護功能的O/P)。
外部Blk PSB
動力回轉(zhuǎn)閉鎖功能的外部禁用:
F: -電源開關(guān)閉鎖已啟用
T: -電源開關(guān)閉鎖禁用
xx:-所有二進(jìn)制I/P(或保護功能的O/P)。子菜單“常規(guī)”中的第一個參數(shù)是“參考長度”
在發(fā)生以下情況時,需要指示到故障的距離:跳閘,但不影響保護功能。
該參數(shù)給出了參考長度的電抗(in次級/ph/單位長度),并且可以以km定義,
英里、線路長度百分比等,即。
The c.t. input (I0P) should be wired in the same sense as the
neutral current input (I0) (e.g. terminals 9 and 10 correspond
to terminals 7 and 8 respectively).PhaseSelMode 2)
Phase preference for cross-country faults in systems with
Petersen coils and ungrounded systems:
solidly grounded (no phase preference)t1TransBl
Time 1 for the TRANSBL (transient blocking) mode. Delay for
faults after a fault was detected in the reverse direction.
t2TransBl
Time 2 for the TRANSBL (transient blocking) mode. The
logic remains enabled for the time t2 after a fault was
detected in the reverse direction.
t1EvolFaults
Time for discriminating evolving faults (three-phase trip for
evolving faults during this time setting).
POWER-SWING BLOCKING (see Section 3.5.31.8 and 4.8.6.)
tPSblock
Maximum time during which the power-swing blocking
function is effective. The function is disabled when set to
zero.
BINARY INPUTS (see Section 3.5.31.10.)
ChgMeasDir
Input for changing the direction of measurement.
Ext Blk Dist
Input for blocking the distance protection function:
F: - not blocked
xx: - all binary I/P’s (or O/P’s of protection functions).
Ext UZ Blk 1)
Input for blocking the underimpedance starters:
F: - underimpedance starters enabled
T: - underimpedance starters disabled
xx: - all binary I/P’s (or O/P’s of protection functions).
Ext Blk PSB
External disable for the power-swing blocking function:
F: - power-switch blocking enabled
T: - power-switch blocking disabled
xx: - all binary I/P’s (or O/P’s of protection functions).The first parameter in the sub-menu ‘General’ is ‘Ref length’
which is needed to indicate the distance to a fault in the event of
a trip, but otherwise bears no influence in the protection function.
The parameter gives the reactance of the reference length (in
secondary /ph per unit length) and may be defined in km,
miles, percent line length etc., i.e.