Grade the resistance of a 5 section starter for a 3.7 kW, 250 V, 1000 rmp D.C. shunt motor from the following date. Maximum torque at starting = 1.5 times full load torque, full load efficiency= 0.82, Armature circuit resistance = 1Ω field current = 1.2 Amp.

Q: Question 5 A 200 HP, 440 V, 1440 rpm, 50 Hz induction motor has a power factor of 0.85 lagging and…

A: Starters : Starters are used to limit the starting inrush current DOL Starter or direct online…

Q: A shunt motor has a nameplate rating of 140 hp, 500 V, 205 A, 1700 rpm. The shunt field circuit…

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Q: 1. When running at its operating speed, a 215-V dc motor with an armature whose resistance is 1.70 2…

A: Given data,VT  = 215 VoltsRa = 1.70 OhmsIL  = Ia = 22.0 AWe know that for a dc motor, V = Eb +…

Q: 4. A 50 HP, 550V shunt wound motor draws a line current of 4.5 ampere at no load. The shunt field…

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Q: A 55 hp, 440 V, 400 rpm DC shunt motor draws 107 A when operating at rated conditions. The motor has…

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Q: At100 volts, a shunt motor is taking 250 amperes. Shund field resistance is 20 ohms and armature…

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Q: A 230 V shunt motor has a nominal arma- ture current of 60 A. If the armature resist- ance is 0.15 ,…

A: The shunt motor is rated for 230 Volts.  The armature current is 60 A.  a. The counter emf is,…

Q: determine "A" through "G" for the DC motor on worksheet 5 when it is running at capacity and its…

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Q: 55 hp, 440 V, 400 rpm DC shunt motor draws 107 A when operating at rated conditions. The motor has…

A: In this question we will draw diagram of dc shunt motor showing all  resistance,currents and…

Q: A 400 V series motor has a field resistance of 0.02 ohm and an armature resistance of 0.1 ohm. The…

A: It is given that: IL1=Ia1=30 AN1=1000 rpmRse=0.02 ΩRa=0.1 ΩVt=400 VRsh=0.03 ΩT2=0.6T1

Winding and Constructions

Alternating Current (AC) winding is generally of the 3-phase type due to the inherent advantages of the 3-phase machine. Armature coils must be connected to the yield balance (equivalent in magnitude and 2/3 of the series phase difference of the rod) 3-phase electromotive forces (emf). The armature should be divided into step-bands to start with slots around the perimeter.In the construction of AC machines, the frame is used as an external protective shield to protect it from environmental conditions. The frame also serves as the outer perimeter, allowing the interior to be easily placed. The static state section of the devices is the stator winding attached stator.