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(1) A hydraulic motor has a displacement of 60 mL / revolution. It operates at a...
III. A 3.5 in3 hydraulic motor has a mechanical efficiency of 0.61 and a volumetric efficiency...
III. A 3.5 in3 hydraulic motor has a mechanical efficiency of 0.61 and a volumetric efficiency of 0.73. It produces 650 lb in of torque at 1220 rpm. System flow is provided by a piston pump that has a theoretical flow rate of 42 gpm and a mechanical efficiency of 0.71. The pump is driven by horsepower and kilowatts required to operate the system. What is the overall efficiency of the system? an electric motor with a 0.71 efficiency. Find...
A three-phase, six-pole 440 V, 60 Hz induction motor has the following per-phase equivalent circuit parameters...
A three-phase, six-pole 440 V, 60 Hz induction motor has the following per-phase equivalent circuit parameters referred to the stator: R1 = negligible, R’2 =0.3 Ω, Rφ = infinite, X1 = 1.131 Ω, X’2 = 1.131 Ω and Xφ = 37.7 Ω. Rotational losses are negligible. Assume the stator is connected to a 440 V, 60 Hz source and use the 6-parameters IEEE model. a) Determine the motor starting torque. (5 points) b) Calculate the motor breakdown torque. (5 points)...
Name: Student No.: 1. The pump represented by the graph below has a displacement of 3...
Name: Student No.: 1. The pump represented by the graph below has a displacement of 3 in /rev. Determine- (12 pts.) Efficiencies at 3000 psi - Overall efficiency (6) Volumetric Efficiency,% 100 90 1 - - - - 1 1 1 1 1 1 1 - - - 1 80 - - - - - 70 - - - EFFICIENCY, % 60 V 1 50 40 30 20 0 500 1000 2000 2500 3000 1500 SPEED, N (a) The volumetric...
1. A 15 hp, 4 pole, 208 V, 60 Hz, Y-connected, three-phase squirrel cage induction motor has the ...
1. A 15 hp, 4 pole, 208 V, 60 Hz, Y-connected, three-phase squirrel cage induction motor has the following parameters in Ω/phase referred to the stator: R,-0.220, Xi = 0.430, X,-15.0, R2 0.130 and X2-0.430. Mechanical and core losses amount to 300 W and 200 W respectively for rated voltage. (a) The motor is fed with a 60 Hz, 208 V voltage. It runs with a slip of 4.5 %. Find the speed, shaft torque and power, efficiency and power...
Problem 2 Example Motor: 4-pole, 220 V, 60 Hz, 1700 rpm Problem #1: The example motor...
Problem 2
Example Motor: 4-pole, 220 V, 60 Hz, 1700 rpm Problem #1: The example motor is inverter driven with its rotor slip frequency controlled so that u, = u,Rated-2094 rad/s. The motor is coupled to a mechanical load with the torque-speed characteristic shown. a) b) For nm-0, find f, l,',VI, and ??. (ans. 3.33, 29.54, 3. I 15,0) For nm-1500 rpm, find f, 12,v,,and ?.(ans . 53.33,72.35, 122.09, 93.75) (N.m) 150 25 n (rpm) 1500 Problem # 2: The...
1. A 300 V compound motor has armature resistance 0.18 Ω, series field resistance 0.3 Ω...
1. A 300 V compound motor has armature resistance 0.18 Ω, series field resistance 0.3 Ω and shunt field resistance 100 Ω. The rotational losses are 200 W. On full load the line current is 25 A and the motor runs at 1800 rpm. Determine: (i) the developed mechanical power (ii) the output power (iii) the output torque (iv) the efficiency at full load 2. A 120 V series motor has 0.2 Ω field resistance. On full load, the line...
QUESTIONS Question-3: Draw "speed vs. torque" curve using data in Table-1. The completed graph represents the speed vs. torque characteristics of a typical DC shunt-wound motor. Terax Qu...
QUESTIONS Question-3: Draw "speed vs. torque" curve using data in Table-1. The completed graph represents the speed vs. torque characteristics of a typical DC shunt-wound motor. Terax Question-4: Calculate the speed regulation (full load - 12 lbf.in) using the equation: 2-143) 143 (no load Regulation (full load speed) Speed regulation- % Part-II - Motor Efficiency Calculation: Set the dynamometer control knob at its full CW position (to provide the maximum starting load for the shunt-wound motor). Turn on the power...
3ELEC 3600. Problem H8 3-phase Wound Rotor Induction Motor This sheet is page 1. Number all...
3ELEC 3600. Problem H8 3-phase Wound Rotor Induction Motor This sheet is page 1. Number all pages. Consider the following induction machine THREE-PHASE INDUCTION MOTOR DATA* Ratings Line Voltage 2400 V; 72.17 A; Horsepower-300 hp stator frequency60 Hz Design W Poles -4; **Equivalent Circuit Values (in stator ohms Rated Freq)** R1 0.30000 R2'- 0.47159 X2'-1.73000; Jm2.5000 kg-m sq Thevenin Equivalent Circuit Values: RT-0.28524; slip, speed for max Torque0.1375; Rotational Loss Torque-TRL 0.18689 x (speed in rad/s) Nm X1 -1.73000 Xm67.740...
summatize the following info and break them into differeng key points. write them in yojr own...
summatize the following info and break them into differeng key points. write them in yojr own words
apartus
6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
III. A 3.5 in3 hydraulic motor has a mechanical efficiency of 0.61 and a volumetric efficiency of 0.73. It produces 650 lb in of torque at 1220 rpm. System flow is provided by a piston pump that has a theoretical flow rate of 42 gpm and a mechanical efficiency of 0.71. The pump is driven by horsepower and kilowatts required to operate the system. What is the overall efficiency of the system? an electric motor with a 0.71 efficiency. Find...
Name: Student No.: 1. The pump represented by the graph below has a displacement of 3 in /rev. Determine- (12 pts.) Efficiencies at 3000 psi - Overall efficiency (6) Volumetric Efficiency,% 100 90 1 - - - - 1 1 1 1 1 1 1 - - - 1 80 - - - - - 70 - - - EFFICIENCY, % 60 V 1 50 40 30 20 0 500 1000 2000 2500 3000 1500 SPEED, N (a) The volumetric...
1. A 15 hp, 4 pole, 208 V, 60 Hz, Y-connected, three-phase squirrel cage induction motor has the following parameters in Ω/phase referred to the stator: R,-0.220, Xi = 0.430, X,-15.0, R2 0.130 and X2-0.430. Mechanical and core losses amount to 300 W and 200 W respectively for rated voltage. (a) The motor is fed with a 60 Hz, 208 V voltage. It runs with a slip of 4.5 %. Find the speed, shaft torque and power, efficiency and power...
Problem 2
Example Motor: 4-pole, 220 V, 60 Hz, 1700 rpm Problem #1: The example motor is inverter driven with its rotor slip frequency controlled so that u, = u,Rated-2094 rad/s. The motor is coupled to a mechanical load with the torque-speed characteristic shown. a) b) For nm-0, find f, l,',VI, and ??. (ans. 3.33, 29.54, 3. I 15,0) For nm-1500 rpm, find f, 12,v,,and ?.(ans . 53.33,72.35, 122.09, 93.75) (N.m) 150 25 n (rpm) 1500 Problem # 2: The...
QUESTIONS Question-3: Draw "speed vs. torque" curve using data in Table-1. The completed graph represents the speed vs. torque characteristics of a typical DC shunt-wound motor. Terax Question-4: Calculate the speed regulation (full load - 12 lbf.in) using the equation: 2-143) 143 (no load Regulation (full load speed) Speed regulation- % Part-II - Motor Efficiency Calculation: Set the dynamometer control knob at its full CW position (to provide the maximum starting load for the shunt-wound motor). Turn on the power...
3ELEC 3600. Problem H8 3-phase Wound Rotor Induction Motor This sheet is page 1. Number all pages. Consider the following induction machine THREE-PHASE INDUCTION MOTOR DATA* Ratings Line Voltage 2400 V; 72.17 A; Horsepower-300 hp stator frequency60 Hz Design W Poles -4; **Equivalent Circuit Values (in stator ohms Rated Freq)** R1 0.30000 R2'- 0.47159 X2'-1.73000; Jm2.5000 kg-m sq Thevenin Equivalent Circuit Values: RT-0.28524; slip, speed for max Torque0.1375; Rotational Loss Torque-TRL 0.18689 x (speed in rad/s) Nm X1 -1.73000 Xm67.740...
summatize the following info and break them into differeng key points. write them in yojr own words
apartus
6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
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