DEIF DU-2/MKIII控制屏
預防性維護DECS-100所需的唯一預防性維護是定期檢查連接DECS-100和系統之間的清潔和緊密。DECS-100裝置的制造使用：最先進(jìn)的表面貼裝技術(shù)。因此，Basler Electric建議不進(jìn)行維修除Basler Electric人員外，任何人都可以嘗試該程序。
故障排除如果您沒(méi)有從DECS-100獲得預期的結果，首先檢查可編程設置適當的功能。遇到困難時(shí)，請使用以下故障排除步驟在勵磁系統的運行中。
發(fā)電機電壓不建立步驟1.驗證所有接線(xiàn)是否正確連接。參見(jiàn)圖4-6至圖4-10。
如果接線(xiàn)連接不當或松動(dòng)，請正確重新連接接線(xiàn)。如果接線(xiàn)正確，則轉至步驟2。
步驟2.驗證發(fā)電機是否以額定轉速旋轉。
如果發(fā)電機未達到額定轉速，則將發(fā)電機轉速增加至額定值。
如果發(fā)電機以額定轉速旋轉，則轉至步驟3。步驟3.對于PMG電源，檢查DECS-100的輸入電源是否正確。參考第1節，概述輸入功率要求的信息和規范。檢查DECS-100端子B1和B3上的公用參考電壓是否正確。如果互連不正確，請根據相應的互連圖重新連接。如果互連正確，檢查系統保險絲是否開(kāi)路。
驗證電位傳感變壓器（如使用）是否連接至DECS-100端子B1和B3。
如果電位感應變壓器連接正確，則轉至步驟5。步驟5.驗證發(fā)電機輸出電壓設定值是否在測量公用母線(xiàn)的10%以?xún)入妷喝绻O定值過(guò)低或過(guò)高，則將設定值調整到適當的水平。
如果設定值正確，則轉至步驟6。步驟6.如果上述步驟未能糾正電壓匹配故障，則更換DECS-100。
PREVENTATIVE MAINTENANCE
The only preventive maintenance required on the DECS-100 is to periodically check that the connections
between the DECS-100 and the system are clean and tight. DECS-100 units are manufactured using
state-of-the-art, surface-mount technology. As such, Basler Electric recommends that no repair
procedures be attempted by anyone other than Basler Electric personnel.
TROUBLESHOOTING
If you do not get the results that you expect from the DECS-100, first check the programmable settings for
the appropriate function. Use the following troubleshooting procedures when difficulties are encountered
in the operation of your excitation system.
Generator Voltage Does Not Build
Step 1. Verify that all wiring is properly connected. Refer to Figures 4-6 through 4-10.
If wiring is improperly connected or loose, reconnect wiring properly.
If wiring connections are correct, proceed to Step 2.
Step 2. Verify that the generator is spinning at rated speed.
If the generator is not up to rated speed, increase generator speed to the rated value.
If the generator is spinning at rated speed, proceed to Step 3.
Step 3. For PMG power, check for correct input power to the DECS-100. Refer to Section 1, General
Information, Specifications for input power requirements. Check for correct utility reference voltage on DECS-100 terminals B1 and B3.
If the interconnection is incorrect, reconnect according to the appropriate interconnect diagram.
If the interconnection is correct, check for open system fuses.
Verify that the potential sensing transformer, if used, is connected to DECS-100 terminals B1
and B3.
If potential sensing transformer connections are correct, proceed to Step 5.
Step 5. Verify that the generator output voltage setpoint is within 10 percent of the measured utility bus
voltage.
If the setpoint is too low or too high, adjust the setpoint to the appropriate level.
If the setpoint is correct, proceed to Step 6.
Step 6. If the above steps fail to correct the Voltage Matching malfunction, replace the DECS-100.
