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On October 17, the parameters of the fifth single-unit capacity million-kilowatt hydrogenerator set runner on the left bank of Baihetan Hydropower Station met the high-quality requirements put forward by the Three Gorges Group, and successfully passed the acceptance, becoming the first runner to pass the acceptance under the condition of "zero counterweight"
.
The turbine-generator set runner has a maximum diameter of 8.
62 meters, a height of 3.
92 meters, and a weight of 346.
5 tons, consisting of
an upper crown, a lower ring and 15 blades of 10.
5 tons.
It is reported that the acceptance standard of the high-quality runner proposed by Three Gorges Group is that the unbalanced moment is less than 74Kg·m, and if the unbalanced moment measured in the static balance test is greater than this value, it is necessary to weld the counterweight in the runner
.
The unbalanced torque measured in the static balance test of the accepted runner is only 28.
83Kg·m, which can reach the standard of high-quality runner without additional counterweight, and realize the first "zero counterweight"
manufactured on site at the Baihetan runner site of Dongfang Motor.
It is reported that the runner factory itself has formulated an internal acceptance standard of 50Kg·m, which is far lower than the value of 74Kg·m quality acceptance index
.
After the fifth runner passes the acceptance, it will be temporarily stored outside the runner processing plant and transported to the underground plant on the left bank of Baihetan Hydropower Station for hoisting
.
On October 17, the parameters of the fifth single-unit capacity million-kilowatt hydrogenerator set runner on the left bank of Baihetan Hydropower Station met the high-quality requirements put forward by the Three Gorges Group, and successfully passed the acceptance, becoming the first runner to pass the acceptance under the condition of "zero counterweight"
.
The turbine-generator set runner has a maximum diameter of 8.
62 meters, a height of 3.
92 meters, and a weight of 346.
5 tons, consisting of
an upper crown, a lower ring and 15 blades of 10.
5 tons.
It is reported that the acceptance standard of the high-quality runner proposed by Three Gorges Group is that the unbalanced moment is less than 74Kg·m, and if the unbalanced moment measured in the static balance test is greater than this value, it is necessary to weld the counterweight in the runner
.
The unbalanced torque measured in the static balance test of the accepted runner is only 28.
83Kg·m, which can reach the standard of high-quality runner without additional counterweight, and realize the first "zero counterweight"
manufactured on site at the Baihetan runner site of Dongfang Motor.
It is reported that the runner factory itself has formulated an internal acceptance standard of 50Kg·m, which is far lower than the value of 74Kg·m quality acceptance index
.
After the fifth runner passes the acceptance, it will be temporarily stored outside the runner processing plant and transported to the underground plant on the left bank of Baihetan Hydropower Station for hoisting
.
