Draw diagrams representing Star and Delta configured motors and explain usingadditional sketches how you would test for good/bad winding insulation.Show via diagram how this motor can be connected via STAR/ DELTA starting method,outline all components in your circuit.Explain how the STAR /DELTA start sequence function.

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Answered: Draw diagrams representing Star and…

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter28: Part Winding Motor Starters

Section: Chapter Questions

Problem 6SQ

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14/ What are the following statements are true for a three-phase induction motor? I. Three-phase induction motor stator winding is fed from a three-phase supply II. Stator carries a three-phase winding III. Rotor carries a short circuited winding a. I and II only b. I,II and III c. II and III d. I only
6. True or false? The primary job of a start winding is to provide automatic starting of a single-phase motor.
One type of failure that's more common with 200 HP motors than with 10 HP motors is A. rotor bar failure.B. contactor failure.C. bearing failure. D. stator failures.
What is The Xm for the single-phase induction motor (R1d.c=2 ohm) isIf the no-load test ( Vo=220V, Io=7.2, Po=315watt ) Blocked rotor test (Vs=70V, Is=9.5A, Ps=350watt?
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b) A three-phase 4-pole 208 V, 60 Hz induction motor with Y-connected stator has the following set of parameters per phase: stator resistance R₁ = 0.22 S2, stator leakage reactance X₁ = 0.43 2, rotor equivalent resistance R₂ = 0.1272, rotor leakage reactance X₂= 0.43 2, and magnetising reactance XM= 15 2. For a slip of 0.05, calculate the following: i. 11. iii. Stator line current; Stator copper losses and the air-gap power; Output mechanical power.
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Complete the wiring diagrams as per Worksheets 6-A and 6-B then solve for "A" through "K" for the DC motor on Worksheets 6-A and 6-B when it is running at capacity and its specifications are as follows: Rated input = 125 volts, 16 ampsArmature Resistance = 0.3 ohms(Ω)Shunt Field Resistance = 50 ohms (Ω)Series Field Resistance 0.6 ohms (Ω)Rheostat Resistance = 12.5 ohms (Ω) A) Series field current (I-series) a) 2.3 A b) 13.69 A c) 16 A d) 18.3 A B) Shunt field current (I-shunt) a) 2.3 A b) 13.69 A c) 16 A d) 18.3 A C) Armature current (I-arm) a) 2.3 A b) 13.69 A c) 16 A d) 18.3 A
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