4.21.2 Site Test Scope 现场测试范围
Site testing of Turbine-Generator Set Package shall include, but not be limited to, the following:
汽轮发动机组的现场测试包括（但不仅限于）以下内容：
4.21.2.1 Turbine-Generator Mechanical Balance Testing汽轮发电机机械平衡测试
After equipment is installed, vibration checks of each turbine-generator unit will be performed across the load range.
设备安装完毕后，每台汽轮发电机设备应在整个负荷范围内接受振动测试。
Rebalancing is required if the shaft relative vibration displacement amplitude (peak to peak) adjacent to any main bearing exceeds 0.10mm for half speed turbine-generator across the load range.
若半速汽轮发电机在整个负荷范围内，与任何主轴承相邻的轴相对振动偏移（峰间）振幅超过0.10mm，则需要重新进行平衡。
Overspeed trip tests shall be conducted.
应实施超速跳闸测试
Beijing Chinese Subtitling Translation Service Agency has translated many technical documents about Engine unit field test.
华译网上海翻译公司曾经翻译过大量有关汽轮发动机组的现场测试的资料文件。
4.21.2.2 Turbine and Accessories 汽轮机和附件
1. Correct operation of control equipment shall be verified.
应对控制设备的正确运行进行核查。
2. Partial or total load rejection tests shall be carried out in the full range of load, to verify speed and load regulation.
应在整个负荷范围内进行不完全或完全甩负荷测试，来核实速度和负荷规定。
3. Sealing effectiveness of turbine stop and control valves shall be tested. Supplier shall provide corresponding method and criteria to Purchaser.
应测试汽轮机终止阀和控制阀的密封有效性。供方应为买方提供相应的测试方法和标准。
4. Thermal behavior of the turbine during startups, loading, and shutdowns as well as during stabilized operation at various loads shall be checked. Measurements carried out shall notably include metal temperature at various points, and absolute and differential expansion.
应对汽轮机在启动、带负荷、停机过程中，以及在各种负荷条件下稳定运行过程中的热行为进行测试。实施的测量应特别包括各个地点的金属温度，绝对膨胀率和不均匀膨胀率。
5. Cleaning and flushing for lube oil circuits and EHF circuits shall be carried out before start up.
启动之前应清洁冲洗润滑油回路和控制油回路。
6. System hydraulic tests
系统水压测试
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