King Fahd University of Petroleum & Minerals Electrical Engineering Department DESIGN PROJECT Semester XXXXXXXXXX) th This project is posted on WebCT on 28/04/2013 and it is due on 14 May 2013 Industrial plant consists of 4-motors and transformer. Two induction motors and two synchronous motors are installed with the following data: The slip range of induction motors is between: s = XXXXXXXXXX The induction motor at rated load power factor is between PF = XXXXXXXXXXlagging. The induction motor rated sizes are available of 100, 150, 200, & 250 hp. The efficiency of the induction motors is between 80%-90% The synchronous motor rated sizes are available of 100, 150, 200, &250 kW. The synchronous motor at rated load power factor is between PF = 0.80 lagging-0.80 leading. The efficiency of the synchronous motors is between 85%-92% The motor poles are available of 2 or 4. The voltage source is V = 480V, 60Hz. LL The total load torque of the plant is 2900 N.m. The total power factor, PF, at the secondary side of the transformer is 1 = PF = 0.95 lagging. 1. Design the motor specification such as size, pole numbers, slip, efficiency, and PF based on the data available above. (note: Motors from each type cannot be the same rating) 2. Select proper transformer which can handle the total load taking to consideration 70% of load factor plus losses. 3. Show all your calculations in detail (power in all forms, currents, speeds, voltages, etc) 4. Typing report should be submitted. Transformer 480V, 60Hz M1 M2 M3 M4 Induction Synchronous Synchronous Induction Motor Motor Motor Motor
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