Things to be done during the installation process include: cooler and pipeline pressure test, bearing seat insulation inspection, oil basin leak test, d insulation of the stator and rotor, inspection of the roundness of the rotor (if there is a demagnetization pole), inspection of the swing of the unit. and debugging, magnetic clearance, runner clearance and guide vane clearance detection, unit elevation inspection, etc., mainly examining different units.
Things to be done after overhaul and before operation include: high voltage test of the unit (including insulation, coil forward resistance, etc.), test of water filling, guide vane switching time, fast gate (butterfly valve, etc.) switching test, no-load vibration and bearing temperature rise test, pressure rise testzero, timing test, load and temperature rise test, load rejection test, etc., increase or decrease the test items according to the conditions of the unit.
Each test item is generally formulated according to the maintenance situation, and some of them need to be carried out within the relevant regulations. You can consult the relevant regulations. For more content, please check the relevant information yourself. .