(b) Outline any THREE constructional differences between the single-value capacitormotor and the capacitor-start motor1(c)Starting from the torque equation T=0x² (S-S[sin 20+ sin 20 cos2or]of aDax4singly-excited motor, displaced at angle 0=0,1-8, where the symbols have theirusual meanings, explain why a single-phase induction motor is non-self-starting, buta single-phase synchronous motor is self-starting.

“Since you have asked multiple questions, we will solve the first question for you. If you want any…

b) Outline any THREE constructional differences between the single-value capacitor motor and the capacitor-start motor (c) Starting from the torque equation T-(S-S[sin 20+ sin 20 cos 2or of a singly-excited motor, displaced at angle =0,1-6, where the symbols have their usual meanings, explain why a single-phase induction motor is non-self-starting, but a single-phase synchronous motor is self-starting.

b) Outline any THREE constructional differences between the single-value capacitor motor and the capacitor-start motor (c) Starting from the torque equation T-(S-S[sin 20+ sin 20 cos 2or of a singly-excited motor, displaced at angle =0,1-6, where the symbols have their usual meanings, explain why a single-phase induction motor is non-self-starting, but a single-phase synchronous motor is self-starting.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter35: Harmonics 916

Section: Chapter Questions

Problem 3RQ: Would a positive-rotating harmonic or a negative-rotating harmonic be more harmful to an induction...

See similar textbooks

Similar questions

3. A 440V 60-hp six pole 60 hz A connected induction motor has the following parameters R1=0.048 R2= 0.035 Xm= 9.50 X1= 0.33 0 X2= 0.37 0 Pcore= 600W PF&W= 350W Use the Thevenin's Equivalent circuit concept to find: (a)Vth and Zth seen by the rotor circuit (b)The slip at which maximum torque occurs (c) the value of Max/pullout Torques (d) The starting torque.
Design and develop equivalent circuit model of a single phase Induction motor with th consideration of core losses present with the parameter consideration of stator resistance R1 and reactance X1 and two rotor parameters which includes r2,x2 and magnetising reactance xm. (Illustration is required) Draw by hand please
a) The figure below shows the per-phase equivalent circuit of a two- pole three-phase induction motor operating at 50 Hz. The voltage (E1) across the magnetizing inductance is 210 V, and the slip (s) is 0.05. What is the developed torque produced by the motor ? 0.04 0 j0.22 0 j0.22 0 0.05 V j6.28 NE E1
The concepts a 3 phase squirrel-cage induction motors (SCIM). 3 phase motors are widely used in the industry. they require little maintenance, having no brush gear or centrifugal switch, are robust and relatively inexpensive.
(a) The typical starting current for induction motor (i.e., at s=1) is five to eight times of the rated current. List TWO (2) effects due to transient effect during starting current.
A 3-phase, 50-Hz induction motor with its rotor star-connected gives 500 V (r.m.s.) at standstill between the slip-rings on open-circuit. Calculate the current and power factor at standstill when the rotor winding is joined to a star-connected external circuit, each phase of which has a resistance of 10 Q and an inductance of 0.04 H. The resistance per phase of the rotor winding is 0.2 N and its inductance is 0.04 H. 4. Also, calculate the current and power factor when the slip-rings are short-circuited and the motor is running with a slip of 5 per cent. Assume the flux to remain constant. Identify it`s given and solve it
Q4/B/ What are the principal characteristics of a series DC motor? What are its uses? Core Mc
The resistance and reactance of the main winding of a 50 Hz single phase induction motor are √3 Q and 1 Q, respectively. The motor is capacitor start motor. The power factor angle of the auxiliary winding to achieve maximum starting torque is (in degrees)
a)the figure below shows the per-phase equivalent circuit of a two - pole three- phase induction motor operating at 50 Hz . The voltage (E1) across the magnetizing inductance is 210 v , and the slip (s) is 0.05 . What is the developed torque produced by the motor ? b) A 4 poles , 50Hz , Y-connected three phase induction motor has the per phase equivalent circuit parameters of (R1 =R2=0.12 , X1=X2=0.6 , Xm =12 ) ohm and I2 =20 (0 . Use exact equivalent circuit to determine the following at rated slip of 0.03 : I. Stator current II. Magnetizing current III. Power factor IV. Developed torque C) What is the physical meaning for each of the following induction motor parameters : R1 , R2 , Rc , X1 , X2 , Xm d) What is synchronous watt
A 50-KW, 220V, 50 Hz, squirrel-cage three-phase induction motor is needed to rotate a mine conveyor belt drive. The motor starts sometimes under load, but most of the time is needed to run at rated speed and slip of 3.5%. Propose an appropriate design of this drive motor in order to suit the application. Motivate and then illustrate your design with suitable drawings and speed (slip)-torque graphs.
200 +21. If maximum torque of an induction motor is kg-m at a slip of 12%, the torque at 6% slip would be...... kg-m. 1 (a) 100 (b) 160 (c) 50 (d) 40 B, 1993)
Induction motor at standstill condition has the motor speed (nm) and slip (s): Select one: Oa. nm=100% and s=0 O b. nm-50% and s=0 nm=0 and s=1 O d. nm=50% and s-1 If the synchronous generator (not connected to infinite bus) is driven at a constant speed, thereby maintaining constant frequency, and the field current is increased, the terminal voltage: Select one: O a. remains unchanged O b. increases fluctuates O d. decreases