HONEYWELL 51308388-175 CC-TDIL11處理器模塊,模塊控制器
n當(dāng)前不平衡n[輸入]了解更多當(dāng)前不平衡報(bào)警：關(guān)閉范圍：關(guān)閉、鎖定、未鎖定分配報(bào)警繼電器：報(bào)警范圍：報(bào)警、報(bào)警和輔助2、報(bào)警和輔2和輔3、輔2、輔2和輔助3、輔3電流不平衡報(bào)警拾?。?5%范圍：4至40%，步長(zhǎng)為1電流不平衡警報(bào)延遲：1秒范圍：1至60秒，步長(zhǎng)為當(dāng)前不平衡警報(bào)事件：關(guān)閉范圍，關(guān)斷電流不平衡跳閘：關(guān)斷范圍：關(guān)斷、閉鎖、未閉鎖分配跳閘繼電器：跳閘范圍：跳閘、跳閘和輔助2、跳閘和輔2和輔3，跳閘和輔助3電流不平衡跳閘拾取：20%范圍：4至40%，步進(jìn)1電流不平衡脫扣延遲：1 s范圍：1至60 s，步進(jìn)為1輸入退出退出退出退出信息退出退出信息進(jìn)入退出信息退出信息退出注釋4-46 469電機(jī)管理繼電器GE Multilin 4.7 S6電流元件4設(shè)置點(diǎn)4 4.7.6接地故障路徑：設(shè)定點(diǎn)×S6電流元件×接地故障接地故障元件的功能如下。一旦接地電流幅值在延遲規(guī)定的時(shí)間內(nèi)超過拾取電平×接地CT初級(jí)（見第4-12頁(yè)第4.3.1節(jié)：電流傳感），將發(fā)生跳閘和/或報(bào)警。還可以啟用備用跳閘功能。如果接地故障跳閘備份為“開”，且已啟動(dòng)接地故障，則如果接地電流持續(xù)時(shí)間超過接地故障跳車備份延遲，則將發(fā)生第二次跳閘。第二次跳閘指定給R2或R3，R2或R3將專用于上游斷路器跳閘繼電器。接地故障跳閘備用延遲必須設(shè)置為比斷路器清除時(shí)間更長(zhǎng)的時(shí)間。打開此功能時(shí)必須小心。如果中斷設(shè)備（接觸器或斷路器）的額定值不足以斷開接地故障電流（低電阻或可靠接地系統(tǒng)），則應(yīng)禁用該功能?；蛘?，該特征可被分配給輔助繼電器，并被連接，以使其跳閘能夠斷開故障電流的上游設(shè)備。n接地故障n[輸入]了解更多接地故障超程濾波器：關(guān)閉范圍：打開，關(guān)閉接地故障報(bào)警：關(guān)閉范圍，鎖定，未鎖定分配報(bào)警繼電器：報(bào)警范圍：報(bào)警，報(bào)警和輔助2，報(bào)警和輔2和輔3，輔助2，輔2和輔助3，輔助3接地故障警報(bào)拾?。?.10 x CT范圍：0.10至1.00 x CT，步驟：0.01。僅當(dāng)接地CT編程為1A或5A輔助接地故障報(bào)警拾取：1.00 A范圍：0.25至25.00 A，步長(zhǎng)：0.01時(shí)才可見。僅當(dāng)接地CT編程為Multiline 50:0.025 INTENTIONAL GF ALARM DELAY:0 ms范圍：0到1000 ms時(shí)才可見，步驟為1接地故障報(bào)警事件：關(guān)閉范圍：打開，關(guān)閉接地故障跳閘：關(guān)閉范圍，鎖定，未鎖定ASSIGN（分配）各種情況（例如，接觸器彈跳）可能會(huì)導(dǎo)致電機(jī)啟動(dòng)期間的瞬時(shí)接地電流在極短時(shí)間內(nèi)超過接地故障拾取水平。接地故障時(shí)間延遲以10 ms為增量可調(diào)。延遲可以根據(jù)應(yīng)用程序進(jìn)行微調(diào)，使其響應(yīng)速度仍然很快，但可以通過正常的操作干擾。通常，接地故障時(shí)間延遲設(shè)置得盡可能快，即0 ms。如果發(fā)生干擾跳閘，可能需要增加時(shí)間。當(dāng)接地輸入連接到剩余連接中的相CT時(shí)，必須特別小心。當(dāng)電機(jī)啟動(dòng)時(shí)，啟動(dòng)電流（感應(yīng)電機(jī)通常為6×FLA）具有不對(duì)稱分量。這種不對(duì)稱電流可能導(dǎo)致一個(gè)相位的RMS啟動(dòng)電流高達(dá)正常RMS啟動(dòng)電流的1.6倍。該瞬時(shí)DC分量將導(dǎo)致每個(gè)相CT的反應(yīng)不同，并且進(jìn)入469的接地輸入的凈電流將不可忽略。當(dāng)電機(jī)啟動(dòng)時(shí)，接地故障元件的20毫秒阻斷使469能夠通過該瞬時(shí)接地電流信號(hào)。過載濾波器從故障發(fā)生時(shí)出現(xiàn)的不對(duì)稱電流中去除了直流分量。這不會(huì)導(dǎo)致任何過度響應(yīng)，然而，響應(yīng)時(shí)間稍微變慢（10到15毫秒），但時(shí)間仍保持在規(guī)范范圍內(nèi)。4.7.7相位差路徑：設(shè)置點(diǎn)×S6電流元件×相位差這些設(shè)置點(diǎn)在使用差動(dòng)功能時(shí)對(duì)差動(dòng)元件進(jìn)行編程。該功能由三個(gè)瞬時(shí)過電流元件組成，用于相位差動(dòng)保護(hù)。差動(dòng)保護(hù)可被視為相間或相間接地故障的第一線路保護(hù)。發(fā)生此類故障時(shí)，差動(dòng)保護(hù)可限制可能發(fā)生的損壞。啟用此功能時(shí)必須小心。如果中斷裝置（接觸器或斷路器）的額定值不足以斷開潛在故障，則應(yīng)禁用該功能?；蛘撸撎卣骺杀环峙浣o輔助繼電器，并被連接，以使其跳閘能夠斷開故障電流的上游設(shè)備。低電平di
n CURRENT UNBALANCE n [ENTER] for more CURRENT UNBALANCE ALARM: Off Range: Off, Latched, Unlatched ASSIGN ALARM RELAYS: Alarm Range: Alarm, Alarm & Auxiliary2, Alarm & Aux2 & Aux3, Auxiliary2, Aux2 & Aux3, Auxiliary3 CURRENT UNBALANCE ALARM PICKUP: 15% Range: 4 to 40% in steps of 1 CURRENT UNBALANCE ALARM DELAY: 1 s Range: 1 to 60 s in steps of 1 CURRENT UNBALANCE ALARM EVENTS: Off Range: On, Off CURRENT UNBALANCE TRIP: Off Range: Off, Latched, Unlatched ASSIGN TRIP RELAYS: Trip Range: Trip, Trip & Auxiliary2, Trip & Aux2 & Aux3, Trip & Auxiliary3 CURRENT UNBALANCE TRIP PICKUP: 20% Range: 4 to 40% in steps of 1 CURRENT UNBALANCE TRIP DELAY: 1 s Range: 1 to 60 s in steps of 1 ENTER ESCAPE e e MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE NOTE 4-46 469 Motor Management Relay GE Multilin 4.7 S6 CURRENT ELEMENTS 4 SETPOINTS 4 4.7.6 GROUND FAULT PATH: SETPOINTS ?× S6 CURRENT ELEMENTS ?× GROUND FAULT The Ground Fault element functions as follows. Once the ground current magnitude exceeds the Pickup Level × GROUND CT PRIMARY (see Section 4.3.1: Current Sensing on page 4–12) for the time specified by the delay, a trip and/or alarm will occur. There is also a backup trip feature that can be enabled. If the GROUND FAULT TRIP BACKUP is "On", and a Ground Fault trip has initiated, a second trip will occur if the ground current persists longer than the GROUND FAULT TRIP BACKUP DELAY. It is intended that this second trip be assigned to R2 or R3, which would be dedicated as an upstream breaker trip relay. The GROUND FAULT TRIP BACKUP DELAY must be set to a time longer than the breaker clearing time. Care must be taken when turning On this feature. If the interrupting device (contactor or circuit breaker) is not rated to break ground fault current (low resistance or solidly grounded systems), the feature should be disabled. Alternately, the feature may be assigned to an auxiliary relay and connected such that it trips an upstream device that is capable of breaking the fault current. n GROUND FAULT n [ENTER] for more GROUND FAULT OVERREACH FILTER: Off Range: On, Off GROUND FAULT ALARM: Off Range: Off, Latched, Unlatched ASSIGN ALARM RELAYS: Alarm Range: Alarm, Alarm & Auxiliary2, Alarm & Aux2 & Aux3, Auxiliary2, Aux2 & Aux3, Auxiliary3 GROUND FAULT ALARM PICKUP: 0.10 x CT Range: 0.10 to 1.00 x CT, step: 0.01. Seen only if Ground CT is programmed as 1A or 5A Secondary GROUND FAULT ALARM PICKUP: 1.00 A Range: 0.25 to 25.00 A, step: 0.01. Seen only if Ground CT is programmed as Multilin 50:0.025 INTENTIONAL GF ALARM DELAY: 0 ms Range: 0 to 1000 ms in steps of 1 GROUND FAULT ALARM EVENTS: Off Range: On, Off GROUND FAULT TRIP: Off Range: Off, Latched, Unlatched ASSIGN Various situations (e.g. contactor bounce) may cause transient ground currents during motor starting that may exceed the Ground Fault pickup levels for a very short period of time. The Ground Fault time delays are adjustable in 10 ms increments. The delay can be fine tuned to an application such that it still responds very fast, but rides through normal operational disturbances. Normally, the Ground Fault time delays are set as quick as possible, that is, 0 ms. Time may have to be increased if nuisance tripping occurs. Special care must be taken when the ground input is wired to the phase CTs in a residual connection. When a motor starts, the starting current (typically 6 × FLA for an induction motor) has an asymmetrical component. This asymmetrical current may cause one phase to see as much as 1.6 times the normal RMS starting current. This momentary DC component will cause each of the phase CTs to react differently and the net current into the ground input of the 469 will not be negligible. A 20 ms block of the ground fault elements when the motor starts enables the 469 to ride through this momentary ground current signal. The overreach filter removed the DC component from the asymmetrical current present at the moment a fault occurs. This results in no overreach whatsoever, however, the response time slows slightly (10 to 15 ms) but times still remain within specifications. 4.7.7 PHASE DIFFERENTIAL PATH: SETPOINTS ?× S6 CURRENT ELEMENTS ?× PHASE DIFFERENTIAL These setpoints program the differential element when the differential feature is in use. This feature consists of three instantaneous overcurrent elements for phase differential protection. Differential protection may be considered first line protection for phase to phase or phase to ground faults. In the event of such a fault, differential protection may limit the damage that may occur. Care must be taken when enabling this feature. If the interrupting device (contactor or circuit breaker) is not rated to break potential faults, the feature should be disabled. Alternately, the feature may be assigned to an auxiliary relay and connected such that it trips an upstream device that is capable of breaking the fault current. A low level differential fault can develop into a short circuit in an instant. A trip occurs once the magnitude of either IaIN-IaOUT, IbIN-IbOUT, or IcIN-IcOUT (phase differential) exceeds the Pickup Level × Differential
