A 20 HP, DC motor is connected to a 500-volt DC line. What is the full load running current of this motor?

Q: For a cylindrical-rotor synchronous machine, the magnitude of the internal generated voltage is |Eg|…

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Q: There is a 3 HP, 220 Vrms single - phase induction motor that operates with a 0.85 lagging power…

A: Given Data  Power Output, PO/P=3HP Power Factor = 0.78 RMS value of Voltage, Vrms=220V Efficiency =…

Q: If Eb is the back emf of d.c. motor and V is the terminal voltage, then the *.condition for maximum…

A: The efficiency of DC motor depends on the back EMF (Eb) and the motor has higher efficiency if…

Q: a) A 6600V, 3 phase, star connected synchronous motor draws a full load current of 80 A at 0.8 power…

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Q: The total capacitance of a 2.2 µF capacitor connected in series with a 0.047 µF capacitor is Four…

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Q: A motor of 15 horsepower, has a code letter L, and is operated on a 40 Find the locked rotor current

A: Given Data→ Motor horsepower(P)=15 HP Code letter - L Voltage(V)= 400 Volt

Q: What is the peak voltage of a 120V RMS AC voltage?

A: Given Vrms=120VAssuming that AC signal to be sinusoidal,

Q: A 10kW, 120V-DC series generator has an armature resistance of 0.1 ohms and a series field…

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Q: Defined Principle Operation in electricity generator in terms of electromagnetic theories?

A: Electric Generator: A generator is a machine that converts mechanical energy into electrical energy.…

Q: Discuss the importance of using (1 ?electrical transformers cuss the most important types of (2…

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Q: A shunt motor draws current of 60 A from a 120V source rotating at 1800 RPM. If the armature…

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Q: 12. Part of a DC Machine that produces the magnetic flux when the field winding is excited.

A: A direct current generator is a piece of electrical equipment that transforms mechanical energy…

Q: what is the efficiency? what is the NPSHR? what is the motor power requirement?

A: (1):EFFICIENCY- The term efficiency can be characterized as the capacity to accomplish a ultimate…

Q: Which statements are correct? * Aircraft AC systems need a 400 hertz power Most large body aircraft…

A: An airplane air conditioning system is used to mix hot and cold air to achieve the required…

Q: Q3:A: (a) A 10-hp 230-volt shunt-wound motor has rated speed of 1000 rpm and full-load efficiency of…

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Q: How can a DC motor be made to operate above its base speed?

A: Given DC motor To find To operate above the base speed

Q: In figure below, The total voltage of .3 * the sources connected in series is 6 V 6 V 8 V +20v O +4v…

A: Voltage in series =8-6-6=-4V

Q: Define German Magnetophon

A: Magnetophon recorders were comprehensively utilized in German radio creation during WWII, while they…

Q: 5. What is the function of armature in a DC generator?

A: what is the function of armature in a DC generator?   As per the Bartleby term & condition i…

Q: In a dc machine design, if a wave winding with 8 poles is used, then the parallel path C must be…

A: Answer is 2

Q: 1. The armature and shunt field resistance of a 50-kW, 220 V shunt generator is 0.026 ohm and 52…

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Q: In a given DC motor, the output power is 45 HP, and the copper losses are 2.005 KW. If the…

A: Given data  Output Power = 45Hp=45(746)=33,570 W=33.570 KW Copper losses = 2.005 KW Rotational…

Q: A (21 HP, 3-Phase, 380 volts) motor with an efficiency of 95% is operating at a load factor of 0.63.…

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Q: If a DC motor with 83% efficiency requires a current supply of 213 mA at 250 rpm. What should be the…

A: Given: η = 83%I = 213 *10-3 APin=1.5  WN = 250 rpm

Q: A 3 kVA motor operates from a 240 V supply at 50 Hz and has a power factor of 0.6. Determine the…

A: option (a) 1800 W is correct answer

Q: What rating is used to find the full-load running current of a torque motor?

A: Given Torque motor To find Rating for full load running current

Q: You are Working as a plant electrician. You were told that a large DC motor was returned from the…

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Q: A 5-in.3 displacement motor is to be tested on a bench at 3000 rpm at 2500 lbf/in2. Assuming 100%…

A: Given data  Displacement (V) = 5 in3 N = 3000 rpm  p = 2500 lbf/in2    To determine  FHP output of…

Q: What are the application of thermodynamics in electrical engineering?

A: thermodynamics:- it is study of energy conversion between mechanical work and heat  in electrical…

Q: What happens if the excitation current of two generators operating in parallel is changed?

A: GIVEN :- What happens if the excitation current of two generators operating in parallel is changed.…

Q: As shown in the figure below, this is a speed regulation method for DC separately excited motor. a)…

A: Speed regulation methods are used to control the speed of the motor. Depending upon the type of…

Q: What is the frequency (in Hz) of a motor spinning at 1740 rpm?

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Q: A 240 V, 60 Hz, Delta connected, 870 r.p.m., Eight poles, Three-Phase Induction Motor has the…

A: we can only answer 3 subparts but as your question is not lengthy we are answering max 8 parts.

Q: A three-phase supply connected to the stator of a three-phase induction machine, creates a: O…

A: Given data A three-phase supply connected to the stator of a three-phase induction machine, creates…

Q: A 4-pole lap wound armature of a dc generator has 120 slots, 4 conductors per slot. The flux per…

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Q: Which among the following is a WRONG STATEMENT about an electric motor? O a. Complex to operate O b.…

A: Electric motors have generally few moving parts, which implies they have a longer lifespan.…

Q: Find the power that can be transmitted.

A: Given data; b=150mm=0.15mMax.tension /cm width=140 NT1T2=2.25d=1.05 mN=220 rpm we have to find the…

Q: When the load on the motor increases, does the current increase, remain constant or increase?

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Q: A 250-V, 4-pole, wave-wound d.c. series motor has 782 conductors on itsarmature. It has armature and…

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Q: What are the differences between the Sensible heat and Latent Heat? Draw some examples. Write down…

A: Solution:

Magnetic Properties of Materials

When a magnetic field is exerted on a particular material, the property shown by that material is expressed as magnetic property. Generally, the materials which exhibit magnetic characteristics are aluminum, nickel, dysprosium, cobalt, and many others. Some of the common magnetic properties of the material are listed below: