2RCA021397A0001F輸入電子備件
軟啟動DECS-100還具有可調(diào)節(jié)軟啟動功能,可控制發(fā)電機的時間
電壓或磁場電流斜坡至調(diào)節(jié)設(shè)定點。斜坡速率可從1調(diào)整到7200通過BESTCOMS以1秒為單位遞增。低頻特性在以下情況下也處于激活狀態(tài):軟啟動并優(yōu)先控制發(fā)電機電壓,以盡量減少電壓過沖。電壓匹配(可選)
電壓匹配在應(yīng)用中的PT比率不精確匹配時非常有用。使用輸入發(fā)電機PT比和母線PT比的最佳命令將自動補償偏移。DECS-100電壓匹配選項自動將rms發(fā)電機輸出與rms總線匹配同步前的電壓。DECS-100將發(fā)電機電壓與母線進行比較和匹配通過調(diào)整直流勵磁電流來控制電壓。當(dāng)總線電壓在所選標稱感測范圍的10%。只要發(fā)電機和母線電壓值(適用DECS-100電壓傳感輸入)在可接受范圍內(nèi),電壓匹配可以實現(xiàn)。
DECS-100將發(fā)電機
輸入電平與總線輸入電平匹配的速率由以下控制:
電壓匹配速度設(shè)置。此設(shè)置可在0.01秒內(nèi)從1秒調(diào)整到300秒增量。
電壓匹配可通過DECS-100觸點輸入的狀態(tài)禁用。在最佳喜劇中
52J/K觸點輸入、52L/M觸點輸入或兩個觸點輸入均可配置為啟用和禁用電壓匹配。要啟用總線電壓匹配,請選擇52J/K。這將允許下垂保持激活。
當(dāng)公用設(shè)施聯(lián)絡(luò)斷路器閉合時,電壓匹配將自動禁用(通過52J/K觸點輸入),并且將啟用var/功率因數(shù)控制。兩種電壓匹配模式可用:維持和恢復(fù)。當(dāng)實施維護模式時,DECS-100設(shè)定點保持在母線電壓水平,即使發(fā)電機或公用設(shè)施斷路器處于打開當(dāng)執(zhí)行恢復(fù)模式時,當(dāng)發(fā)電機或公用設(shè)施斷路器斷開。Revert是默認的電壓匹配模式。DECS-100數(shù)字勵磁控制系統(tǒng)裝在堅固的紙箱中,以防止運輸損壞。收到系統(tǒng)后,對照請購單和包裝清單檢查零件號,以達成一致。
檢查是否有損壞,如果有證據(jù),立即向承運人提出索賠并通知Basler Electric區(qū)域銷售辦事處、您的銷售代表或Basler的銷售代表伊利諾伊州高地電力公司。
如果裝置未立即安裝,則應(yīng)將其存放在原始裝運包裝中,防潮無塵環(huán)境
Voltage Matching (Optional) Voltage matching is useful when the PT ratios in an application are not matched exactly. Using BESTCOMS to enter the generator PT ratio and bus PT ratio will automatically compensate for the offset. The DECS-100 voltage matching option automatically matches the rms generator output with the rms bus voltage prior to synchronizing. The DECS-100 compares and matches the generator voltage with the bus voltage by adjusting the dc excitation current. Voltage matching is enabled when the bus voltage is within 10% of the nominal sensing range selected. As long as the values of generator and bus voltage (applies to the DECS-100 voltage sensing inputs) are within the acceptable range, voltage matching can be achieved. The rate at which the DECS-100 matches the generator input level with the bus input level is controlled by a voltage matching speed setting. this setting is adjustable from 1 to 300 seconds in 0.01 second increments. Voltage matching can be disabled by the state of the DECS-100 contact inputs. In BESTCOMS, the 52J/K contact input, 52L/M contact input, or both contact inputs can be configured to enable and disable voltage matching. To enable bus voltage matching, select 52J/K. This will allow droop to remain active. When the utility tie breaker closes, voltage matching will be disabled automatically (via the 52J/K contact input) and var/power factor control will be enabled. Two voltage matching modes are available: Maintain and Revert. When Maintain mode is implemented, the DECS-100 setpoint is maintained at the bus voltage level even when the generator or utility breaker is open. When Revert mode is implemented, the DECS-100 setpoint reverts to its original level when the generator or utility breaker opens. Revert is the default voltage matching mode.INTRODUCTION DECS-100 Digital Excitation Control Systems are delivered in sturdy cartons to prevent shipping damage. Upon receipt of a system, check the part number against the requisition and packaging list for agreement. Inspect for damage, and if there is evidence of such, immediately file a claim with the carrier and notify the Basler Electric Regional Sales Office, your Sales Representative or a Sales Representative at Basler Electric, Highland, Illinois. If the unit is not installed immediately, store it in the original shipping package in a moisture and dust free environment.