Abstract :
A pump driving motor is an electric motor utilized to operate water pumps. At PERUMDA Tirta Taman, Bontang City, six motors and three pumps are employed, where the submersible pump motor functions to extract raw water from wells, the feed pump transfers water to the clarifier tank, the dosing pump supplies chemical reagents, the backwash pump and root blower are used for cleaning the filtration tank, and the distribution pump delivers treated water to consumers.
Field measurements show that the main protection for the submersible pump motor is a 160 A MCCB, whereas the calculated rating is 290 A. The main protection for the feed pump and backwash pump (1 and 2) in the field uses a 100 A MCCB, while calculations show 73.5 A and 72.5 A. The dosing pump motor uses a 6 A MCB in the field, with a calculated value of 3.6 A. The root blower motor utilizes a 20 A MCB in the field, while its calculated rating is 30.75 A. The distribution pumps (1 and 2) use a 125 A MCCB, whereas the calculated protection rating is 202.5 A.
For the conductor sizing, a 4 × 35 mm² NYY cable is installed for the submersible motor, while its calculated ampacity is 145 A. The dosing motor uses a 3 × 2.5 mm² NYY cable with a calculated capacity of 1.8 A. The feed pump and backwash pump use a 4 × 6 mm² NYY cable, with calculated ampacities of 36.75 A and 36.25 A, respectively. The root blower uses a 4 × 2.5 mm² NYY cable with a calculated rating of 15.37 A, and the distribution pump (1 and 2) uses a 4 × 25 mm² NYY cable with a calculated rating of 101.25 A.
Keywords :
Backwash Pump, Distribution Pump, Dosing Pump, Feed Pump, Induction Motor, Pump Driving Motor, Submersible Pump, Water Treatment Process.References :
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