The water content exceeding standard limit in turbine oil for unit no 1 and no 2 in Huayang Power Generation Co Ltd is resulting from turbine shaft bending

making the glandpacking to be untightness. Though taking measures

such as adding steam baffle plate to steam seal gland after high and medium pressure

installing steam return value to low pressure shaft seal

suitably decreasing steamsupplying pressure for the shaft seal

replacing the oildischarging pump of the oil filter

and lowering water drain port of the main oil tank etc.

the water content in oil has been decreased to less than 50 mg/L

ensuring safe operation of the said units.