Tsurumi Submersible Aeration (1846 Kb) - Ferret

▼ 7-2-7. Initially Targeted Operating Point of Blower andOperating Range of Aerator on Running Current (combination with blower - 50Hz)● 50HzModelMotorOutput[kW]50TRN42.2-52 2.250TRN43.7-52 3.750TRN45.5-52 5.580TRN47.5-52 7.580TRN412-52 1280TRN417-52 17100TRN424-52 24150TRN440-52 40InstallationWaterDepth h[m]Initially Targeted Operating Pointof BlowerDischarge Pressureof Blower[kPa]Inlet Air Flow Rateof Blower[m 3 /min]6 24 0.778 44 0.879.6 60 1.126 20 1.058 40 1.1810 60 1.506 20 1.508 40 1.6810 60 2.26 15 2.38 35 2.610 55 3.16 10 3.28 30 3.610 50 4.56 10 4.08 30 4.510 50 5.46 10 7.18 30 8.010 50 9.36 10 9.68 30 10.810 50 12.8Operating Range of Aeratoron Running Current(200V)[A](400V)[A]9.0 to 10.5 4.5 to 5.313.5 to 17.2 7.0 to 8.620.0 to 24.3 10.0 to 12.123.5 to 31.8 12.0 to 15.936.0 to 51.4 18.0 to 25.751.0 to 70.3 26.0 to 35.278 to 96 39 to 48134 to 165 67 to 83▼ 7-2-8. Initially Targeted Operating Point of Blower andOperating Range of Aerator on Running Current (combination with blower – 60Hz)● 60HzModelMotorOutput[kW]InstallationWaterDepth h[m]Initially Targeted Operating Pointof BlowerDischarge Pressureof Blower[kPa]Inlet Air Flow Rateof Blower[m 3 /min]Operating Range of Aeratoron Running Current6 24 0.7650TRN42.2-62 2.28 44 0.858.0 to 9.5 4.0 to 4.89.6 60 1.006 20 1.1350TRN43.7-62 3.78 40 1.3012.5 to 16.0 6.5 to 8.010 60 1.586 20 1.5050TRN45.5-62 5.58 40 1.7017.5 to 22.6 9.0 to 11.310 60 2.16 15 2.180TRN47.5-62 7.58 35 2.323.0 to 29.6 11.5 to 15.010 55 2.76 10 3.380TRN412-62 128 30 3.734.0 to 47.6 17.0 to 23.810 50 4.36 10 4.180TRN417-62 178 30 4.644.0 to 66.3 22.0 to 33.210 50 5.46 10 7.1100TRN424-62 248 30 7.480 to 96 40 to 4810 50 8.46 10 9.8150TRN440-62 408 30 11.1145 to 165 73 to 8310 50 13.0✳ The above tables are those that are to be utilized in p.13 7-2-4. “Adjusting Procedure for Air Flow Rate (e.g. 200V, 50Hz)”.✳ To adjust the air flow rate of the blower initially, set the VFD to regulate the blower speed to perform “Initially Targeted OperatingPoint of Blower”.✳ For the operation in combination with a blower, adjust the rotating speed of the blower so that the running current of thesubmersible aerator may fall within the “Operating Range of Aerator” stated above. If the running current of the aerator goesbeyond its range, the balance between the outlet pressure of the blower and the suction force of the aerator will be disrupted, andthe aerator will idle (impeller runs in air) or will stop its operation by due to tripping of the motor protection device caused by anoverloading reason. As a result of these conditions, the blower gets into the “closed-valve” operation, which can cause the dangerof breakdown of the blower by the reason of overload or abnormal pressure.(200V)[A](400V)[A]15Australian Pump Industries (02) 8865 3500