ICS TRIPLEX T8901-01機械設備卡件
假設為0°，是所有角度測量的參考。常見問題包括：相位電流與正確位置相差180°（CT極性反轉）相位電流或電壓相差120°或240°（CT/VT相位錯誤）? 相量，相量? [輸入]更多Va PHASOR 0.0%AT 0°Lag Vb PHASOR 0.0%AT 0℃Lag Vc PHASOR 0.01%AT 0°滯后Ia PHASOR0.0%AT 1°滯后Ib PHASSOR 0.0%AT 2°滯后Ic PHASUR 0.0%AT+++（=kW）++GE電力管理469電機管理繼電器5-17 5實際值5.4 A3學習數據5.4 A3學習的數據5.4.1電機啟動469學習加速時間、啟動電流以及，電機啟動期間所需的熱容量。該數據是根據最近五次啟動累積的。469還保存了上次加速時間、上次啟動電流和上次啟動容量的統計數據。可使用S1 469 SETUP\ INSTALLATION \ reset MOTOR information（S1 469設置\安裝\重置電機信息）設置點將該信息重置為默認值。如果起動過程中電機負載相對一致，則可使用學習加速度時間微調加速度保護。學習的加速時間將是最近五次成功啟動中最長的時間。從電機電流從零到大于過載拾取的轉變，直到線路電流降至過載拾取水平以下，測量時間。在電機電流從零過渡到大于過載拾取200 ms后，測量學習起動電流。這應確保測量的電流是對稱的。顯示的值是最近5次成功啟動的平均值。如果少于5次啟動，則整個5次啟動的平均值為0。學習啟動容量用于確定是否有足夠的熱容量允許啟動（有關啟動禁止的更多信息，請參閱第4–54頁第4.8.2節：啟動禁止）。如果沒有足夠的熱容量進行啟動，將發出啟動禁止。啟動將被阻止，直到有足夠的熱容量。5.4.2平均電機負載469可以學習一段時間內的平均電機負載。該時間由S1 469 SETUP \ PREFERENCES \ AVERAGE MOTOR LOAD CALC.PERIOD設置點（默認15分鐘）指定。計算是一個滑動窗口，忽略實際值5 5.5.2一般計數器469個一般計數器中的兩個計數器計算電機啟動或啟動嘗試的次數，以及為啟動給定電機而執行的緊急重啟次數。在排除電機故障時，這可能是有用的信息。當這些計數器中的任何一個達到50000時，該計數器將重置為0。該信息可通過S1 469 SETUP\ INSTALLATION \ RESET MOTOR information（S1 469設置\安裝\重置電機信息）設置點清除。469個普通計數器中的另一個將計數
assumed to be 0° and is the reference for all angle measurements. Common problems include: Phase currents 180° from proper location (CT polarity reversed) Phase currents or voltages 120 or 240° out (CT/VT on wrong phase) ? PHASORS ? [ENTER] for more Va PHASOR 0.0% AT 0°Lag Vb PHASOR 0.0% AT 0°Lag Vc PHASOR 0.0% AT 0°Lag Ia PHASOR 0.0% AT 0°Lag Ib PHASOR 0.0% AT 0°Lag Ic PHASOR 0.0% AT + + + (=kW) + + GE Power Management 469 Motor Management Relay 5-17 5 ACTUAL VALUES 5.4 A3 LEARNED DATA 5 5.4 A3 LEARNED DATA 5.4.1 MOTOR STARTING The 469 learns the acceleration time, the starting current, as well as, the thermal capacity required during motor starts. This data is accumulated based on the last five starts. The 469 also keeps statistics for last acceleration time, last starting current, and last starting capacity. This information can be reset to default using the S1 469 SETUP \ INSTALLATION \ RESET MOTOR INFORMATION setpoint. If motor load during starting is relatively consistent, the LEARNED ACCELERATION TIME may be used to fine tune the acceleration protection. Learned acceleration time will be the longest time of the last five successful starts. The time is measured from the transition of motor current from zero to greater than overload pickup, until line current falls below the overload pickup level. LEARNED STARTING CURRENT is measured 200 ms after the transition of motor current from zero to greater than overload pickup. This should ensure that the measured current is symmetrical. The value displayed is the average of the last 5 successful starts. If there are less than 5 starts, 0s will be averaged in for the full 5 starts. The LEARNED STARTING CAPACITY is used to determine if there is enough thermal capacity to permit a start (refer to Section 4.8.2: START INHIBIT on page 4–54 for more information on start inhibit). If there is not enough thermal capacity for a start, a start inhibit will be issued. Starting will be blocked until there is sufficient thermal capacity. 5.4.2 AVERAGE MOTOR LOAD The 469 can learn the average motor load over a period of time. This time is specified by the S1 469 SETUP \ PREFERENCES \ AVERAGE MOTOR LOAD CALC. PERIOD setpoint (default 15 minutes). The calculation is a sliding window and is ignored ACTUAL VALUES 5 5.5.2 GENERAL COUNTERS Two of the 469 general counters count the number of motor starts or start attempts and the number of Emergency Restarts performed to start a given motor over time. This may be useful information when troubleshooting a motor failure. When either of these counters reaches 50000, that counter will reset to 0. This information can be cleared with the S1 469 SETUP\INSTALLATION\RESET MOTOR INFORMATION setpoint. Another of the 469 General counters will count
