The armature reaction occurs when a separately excited generator supplies rated load:   Is always present   Is always absent   May be sometimes present   None of the above

Q: Explain the effect of the capacitor on the operation of the asynchronous machine as a generator.

A: An induction generator or asynchronous generator is a type of alternating current (AC) electrical…

Q: Q4. An 8-pole DC generator has 400 armature conductors and a useful flux of 0.05 Wb. What will be t…

A: Given data, Number of pole P =4 Number of conductor Z=400 Flux per pole ϕ=0.05 Wb Speed N=1500 rpm…

Q: The purpose of providing dummy coils in a generator is To provide mechanical balance for the. a.…

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Q: determine (i) Generated EMF (ii) Total Resistance (iii) Armature Current (iv) Terminal Voltage.

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Q: 1- Power taken by the prime mover of an alternator in case of no-load goes to a. Produce power in…

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Q: Explain the external characteristis of a shunt generator and state the reasons for the drop in its…

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Q: Two D.C shunt generators running in parallel supply s total load current of 125A. The shunt field…

A: Apply KCL at node connecting two generators and load and using ohms law calculate terminal voltage.…

Q: For the voltage built-up of a self- excited d.c. generator, which the following is not an essential…

A: Voltage built up in self excited generators takes place only when there is a residual flux and field…

Q: Explain the applications of three phase wound rotor I.M?

A: Wound rotor induction motor has advantage that external resistance can be added to control the speed…

Q: In a 120 V compound generator, the resistances of the armature, shunt and series windings are 0.06…

A: Shunt field current =(voltage across shunt field winding)/ field resistance.  Emf induced in the…

Q: Q2: A 4 pole ,d.c. shunt generator with a shunt field resistance of 50 ohm ,and armature resistance…

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Q: A short shunt compound DC generator supplies a load of 10A at a voltage of 10 volts. If the…

A: Answer (c)  Although given machine is short shunt compound DC generator , In the case of short shunt…

Q: A 4-pole d.c. generator has 1200 armature conductors and generates 250 V on open círcuit when unning…

A: we need to calculate average magnetic flux density.

Q: A self cxcuted doc generator has the following chata : lokw . 240v Under rated conditions , the…

A: Given Data: Generator data = 10 kW , 240 V shunt filed current is 4.8 percent of rated load current…

Q: Calculate the flux per pole required on full-load for a 50 kW, 450 V, 8-pole, 600 r.p.m. d.c. shunt…

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Q: 1- Power taken by the prime mover of an alternator in case of no-load goes to a. Produce power in…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: A separately-excited generator develops a no-load e.m.f. of 150V at an armature speed of 20 rev/s…

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Q: A short shunt compound generator supplies 100A at 110V. Armature resistance is 0.05Q and the shunt…

A: The answer as given below:

Q: Draw the Terminal Characteristics of the following Generators. (i)Shunt DC Generator (ii)Series DC…

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Q: A 2 pole wave wound dc shunt generator runs at a speed of 750 rpm, has an armature and shunt field…

A: In the question following data is given P=2 A=2 N=750 rpm Z=880 Flux= 0.115 Ra=0.9 ohm Rsh=280 ohm…

Q: The shunt generators are together supplying 100 A to a load. Generator 1 gives 400 V on no-load…

A: It is given that: IL=80 A Generator 1: Eg1= 400 V  Vt1=360 V Ia1=100 A. Generator 2: Eg1= 400 V…

Q: 7- Iron loss in the rotor of a 3-phase induction motor (a) Very low frequency of emf induced in the…

A: In this question,  We need to choose the correct options Iron losses in the rotor of the 3 phase…

Q: A series generator having a combined armature and field resistance of 04. Ohms is running at 1000…

A: It is given that: N1=1000 rpmN2=1500 rpmVt1=110 VP1=5.5 KW=5.5×103 WP2=10 KW=10×103 WRa+Rse=0.4 Ω…

Q: . Type of compound DC Generator wherein the shunt field winding is connected across the armature and…

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Q: 5. The armature of a 12 pole DC shunt generator has 50 slots and is wave wound with 12 conductors…

A: For the given Dc shunt generator  2P = 12 Slots = 50 Wave wound , c = 2 Z per slots = 12 , Z = 50 x…

Q: A short shunt compound dc generator supplies 7.5 kW at 230 V. the shunt field, series field and…

A: Given Data: P = 7.5 kW V = 230 V Rsh = 100 ohm Rse = 0.3 ohm Ra = 0.4 ohm

Q: (c) The magnetization curve for a separately excited DC generator is shown in Figure Q4 (c). The…

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Q: a- Explain how to control the terminal voltage of a separately exited DC generator and that for DC…

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Q: A shunt generator has a field resistance of 120-16 π, When the generator delivers 8 kW, the terminal…

A: DC Machine Self-excited DC machine DC series Machine DC Shunt Machine Long shunt compound machine…

Q: Ruestion 4 What is exciter in a DC shunt generator? How the emf induced in armature of generator can…

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Q: 4-pole,lap-wound, d.c shunt generator has a useful flux/per pole of 0.07 wb. the armature winding…

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Q: Two self-excited shunt generators operate in parallel to supply a total common load of 250 kw @ VT =…

A: In this question we need to find a armature current and induced emf of generator - 1 and generator-2

Q: Q1. The per-unit d-axis and g-axis reactance's of a salient-pole generator are 0.9 and 0.6…

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Q: The field winding and armature winding resistances of a shunt generator is 80 N and 0,20,…

A: DC shunt Generator Armature resistance Ra =0.2ohm Field resistance Rf = 80ohm Terminal voltage V=…

Q: determine (i) Generated EMF, (ii) Total Resistance, (iii) Armature Current, (iv) Terminal Voltage.

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Q: A shunt DC generator has no load terminal voltage of 140V. Armature resistance is 1ohm and shunt…

A: Given data, A DC shunt generator has No load terminal voltage, V=140 V Armature resistance, Ra=1 Ω…

Q: if a self-excited dc generator cannot build up the voltage but has NOT lost its residual magnetism,…

A: If a generator's residual magnetism has been lost, it should be excited separately from an external…

Q: A 30-kW, 500-V dc short-shunt generator has armature, series field and shunt field winding…

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Q: a long shunt DC generator, Shunt winding is parallel with the Series filed winding and Armature…

A: We need to tell about the given statement is true or false.

Q: The expression given in which option related to the value of the voltage at the ends of Synchronous…

A: The expression for voltage at the ends of Synchronous Generator is given as :…

Q: How does loading of the Generator affect the Generator’s Terminal Voltage (VT) and Load Current (IL)

A: In this question we discuss how the load effects the terminal voltage.

Q: In a 4 pole DC shunt generator with a shunt field resistance of 100 ohms and an armature resistance…

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Q: the armature of a 12 pole wave wound dc shunt generator has 50 slots with 12 conductors per slot.…

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Q: Indicate the relevant changes in induction motor performance (output power, speed, efficiency, power…

A: We are authorized to answer three subparts at a time.Since you have not mentioned which part you are…

Q: The flux per pole of a four-pole generator is 0.05 wb. It driven at a speed of 1500 rpm. In order to…

A: The solution can be achieved as follows.

Q: IDENTIFY TWO WAYS IN WHICH THE OUTPUT POLARITY OF A SHUNT DC GENERATOR CAN BE CHANGED.

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