【判断题】
顺坝不改变河流流态,而丁坝对河流流态有较大的影响.
A. 对
B. 错
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答案
B
解析
暂无解析
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【填空题】
1.机组润滑油压下降的现象是“汽机___”报警,各轴承温度和回油温度___, 润滑油压力表指示___。
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2.机组ETS 在线通道试验包括___油压低、___油压低、低___、___通道试验。
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3.机组做凝汽器真空严密性试验前,应确认机组负荷在___额定负荷以上,机组运行___,凝汽器真空大于___Kpa。
【填空题】
4.机组超速试验时汽机真空不小于___。
【填空题】
5.机组做抽汽逆止门试验过程中,要注意___、___水位的变化,异常时立即___试验。
【填空题】
6.1号机真空泵补水电磁阀在汽水分离器水位低至___mm时自动开, 汽水分离器水位正常___mm时自动关。
【填空题】
7.1号机做抽汽逆止门试验时___、___、___逆止门不做。
【填空题】
8.1号机闭式水母管压力小于___MPa或运行闭式水泵___时备用闭式水泵自启动。
【填空题】
9.1号机抽汽逆止阀活动试验试验条件:1) 经值长同意,联系___人员到场,2) 检查确认机组___正常,3) 各加热器运行正常,正常___自动调节良好。
【填空题】
10.1号发电机在并网后,高压缸进、出口压力比低时,将造成高压___损坏,因此设置高排___保护。我厂为调节级压力与高缸排汽压力比,___手动停机。
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11.1号机冲转前应投入___冷油器 , ___冷却器, ___油冷却器。
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12.1号机DEH、TSI 系统故障,致使一些重要参数无法___,不能维持机组运行时,应___故障停机。
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13.在做凝汽器真空严密性试验过程中,凝汽器压力每分钟下降速度超过___,应立即停止试验并投入真空泵运行,维持___真空。
【填空题】
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【填空题】
15.1号机高中低压汽封为___汽封,高中压缸的各汽封约在___时变成自密封。大约在___负荷下系统达到自密封
【填空题】
16.1号发电机正常运行时定子冷却水压应当低于氢压___MPa,发电机氢与水的压差<___MPa报警。
【填空题】
17.1号机组停运后,如发电机内有氢气,应保持___系统运行,维持___为0.08MPa。
【填空题】
18.切换试验操作过程中,主控与就地人员要保证___畅通。切换试验操作过程中,应认真执行___制度。
【填空题】
19.进行各项切换试验操作时,如遇紧急情况应立即___试验保持___方式。
【填空题】
20.启动6KV辅机前应先确认对应的6KV母线___是否正常,启动时应监视6KV母线电压、辅机的启动___及启动___。
【填空题】
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【填空题】
22.超速试验应确定专人指挥,所有___显示正常,集控室和机头分别有人监视___、___等参数、并随时作好___准备,试验应在汽机专业人员的___下进行。
【填空题】
23.汽轮机轴封处___冒火花时时应立即破坏机组真空,紧急停机。
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【填空题】
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31.1号发电机定子冷却水___而保护30s未动作或定子冷却水___达9.5μs/cm,或发电机定子线圈___,无法处理时,应故障停机。
【填空题】
32.做凝汽器真空严密性试验时在汽机___后,正常运行中___一次。
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