A 3 phase 450V (line-to-line), 1150rpm induction machine has the following equivalent circuit parameters. R1=0.33 Ohms,...

A 3 phase 450V (line-to-line), 1150rpm induction machine has the following equivalent circuit parameters. R1=0.33 Ohms, X1=1.3Ohms R2 = 0.25 Ohms X2 = 40Ohms. Determine the following: a) Rated stator current (per-phase) b) Input power factor c) Total power across the air gap d) The full-load torque e) Magnitude of the starting current

Expert Solution

like please.

Thank you.

Manojponduru answered 10 months ago

The single-phase equivalent-circuit parameters for a three-phase induction motor in ohms-per-phase are R1=0.17 R2=0.24 X1=1.05 X2=0.87...

The single-phase equivalent-circuit parameters for a three-phase induction motor in ohms-per-phase are R1=0.17 R2=0.24 X1=1.05 X2=0.87 Xm=82.1 Rc=435 For a slip of 5 percent, and a terminal voltage of 460 V, line to line, calculate: A) Calculate the motor phase current and input real and reactive power. B) Calculate the mechanical output power and the power dissipated in the rotor. You might assume that the motor friction and windage losses are 270W C) Calculate the motor core loss and the...

The test results for the approximate equivalent circuit of a three-phase induction motor are shown below....

The test results for the approximate equivalent circuit of a three-phase induction motor are shown below. No-load test: equivalent applied voltage 120 V, input current 5 A, equivalent input 480 W Restraint test: Applicable voltage 20V, input current 40A, equivalent input 480W Determine the equivalent circuit constants of Rc, Xm, Rs + Rr, and Xs + Xr when friction and wind losses are ignored. Answer - 30Ω, 40Ω, 0.3Ω, 0.4Ω

A 3-phase, 380 V, 50 Hz , 6 pole, Y-connected induction motor has R1 = 0.1...

A 3-phase, 380 V, 50 Hz , 6 pole, Y-connected induction motor has R1 = 0.1 W , X1 = 0.4 W, R2’ = 0.12 W , X2’ = 0.4 W, Xm = 20 W , Pr = 1 kW. The motor is operated at 970 rpm what is the efficiency?

A 440-V, 3-φ 50-Hz, 4 poles, 37.3 kW, Y-connected induction motor has the following parameters: R1=...

A 440-V, 3-φ 50-Hz, 4 poles, 37.3 kW, Y-connected induction motor has the following parameters: R1= 0.1 Ω, X1 = 0.4 Ω , R2′ = 0.15 Ω , X2′ = 0.44 Ω Motor has stator core loss of 1250 W and rotational loss of 1000 W. It draws a no-load line current of 20 A at a p.f. of 0.09 (lag). When motor operates at a slip of 3%, calculate a. input line current and p.f. [57.4@29°A, 0.875 lag] b....

Q1: How to draw equivalent induction machine circuit? Q2: What is the rotor resistance including slip....

Q1: How to draw equivalent induction machine circuit? Q2: What is the rotor resistance including slip. Why is it R2/s and R2 (s)/(1-s) Q3: how to find power of the output given torque and speed? Q4: what are the formulas for Pin?

Present the single-phase equivalent circuit of a synchronous generator.

A 3-Phase, 60 HZ transmission line has the following parameters: L= 2.563 x 10^(-3) H/mi R=...

A 3-Phase, 60 HZ transmission line has the following parameters: L= 2.563 x 10^(-3) H/mi R= 0.25 Ohms/mi Y= 5 x 10^(3) S/mi The line is 200 mi long and it delivers 150 MW at 220 kV and unity power factor to a substation at its receiving end. Find the efficiency and voltage regulation of the transmission line.

In a three-phase circuit the balanced delta load of (36 +j54) ohms is fed by impedance...

In a three-phase circuit the balanced delta load of (36 +j54) ohms is fed by impedance conductors (5 +j70) ohms. If the generator voltage is 120 V angle 0° phase A, calculate a) the bc voltage on the load, b) the powers in the conductors, c) the bc voltage of the delta load and d) the power delta on the load.

Define a 3 phase short circuit and a line to ground faults in a PV system....

Define a 3 phase short circuit and a line to ground faults in a PV system. How it affect the load and how it can be eliminated. Also make analysis on how it affect active and reactive power and the efficiency of the system.

A4-pole,250V, 50Hz single phase induction motor has rotor frequency 2 Hz, in starting has following parameters:...

A4-pole,250V, 50Hz single phase induction motor has rotor frequency 2 Hz, in starting has following parameters: main winding Rm=2 Ω ,Xm=4 Ω and staring winding : Rs =4 Ω , XLS=2 Ω ,Xcs=8 Ω. Find : speed of motor, Im , IS, θm θs, α and p.f.

Question