The following are the magnetic characteristics of a D.C. generator driven at 1000 r.p.m. It (A) 1 2 4 8 10 E. (V) 160 260 390 472 522 550 Determine: (i) The voltage to which it will excite on OC. (ii) The approximate value of the critical resistance of the shunt circuit. (iii) The terminal potential difference and load current for a load resistance of 42, the armature and field resistance are 0.4 Q and 60 Q respectively.

Q: How the armature reaction works in a de generator.

A: When Armature current flow in the Armature conductor, it generates a additional Flux inside the…

Q: 4. Explain the importance of residual voltage in a dc generator. Note: Figures and sketches are…

A:

Q: In DC generator is used for smooth rotation of armature.

A: In this question we need to answer in DC genrator what we use for smooth rotation of armature.

Q: Please write a short discussion for each number and explain.   1. Losses in a DC generator 2.…

A: Discussion about  1.Losses in a DC generator 2. Power stages in a DC generator 3. Efficiency of a DC…

Q: Name the principal parts of a rotating electrical machine

A: Any electrical machine has divided into mainly two parts one is stator part and another is rotor…

Q: Critical resistance of a self-excited generator is closely related to the speed of the machine True…

A: Critical resistance is related to self excited generators. It is the maximum resistance. At this…

Q: A DC machine can run either as a ______ or as a generator.

A: In this answer we will understand what is a machine and the types of a machine and then we will try…

Q: - Indicate whether the following statement are true or false * True False In a dc machine for the…

A:

Q: In a DC machine, _provides the magnetic path as well as the mechanical support to the whole machine.…

A: we will consider function of each option to answer the given question .

Q: a) How laminated core of electrical machines reduces the iron losses?

A: NOTE :- We’ll answer the first question since the exact one wasn’t specified. Please submit a new…

Q: The spring force is proportional to the displacement.

A: The explanation to this instrumentation problem is as follows.

Q: What is generator in electrical engineering?

A: In this questionWe need to explain about he electric generator.

Q: The applied torque and the induced torque in dc machines are one and the same. a. True b. False

A: Applied torque : Torque is defined as the force applied perpendicularly to a lever multiplied by…

Q: What are the different losses which occur in a DC machine. * Your answer

A: In this answer let's discuss about the different losses that can occur in a dc machine.

Q: prove the formula of generated voltage of dc machine

A: The derivation is as follows.

Q: 2/ Explain the internal and external characteristics of de generator (draw each case).

A:

Q: A 4-pole dc machine is wound duplex lap. Find the number of parallel path

A: Answer: given that 4- pole DC machine poles (p) = 4 number of parallel paths denoted by A To…

Q: Electric Machines2 What are the characteristics of the rotating magnetic field created by…

A: The rotating magnetic field created by the three-phase current in three-phase stator winding: When a…

Q: Find the mechanical speeds in revolutions per minute of a multipole electrical machine, if the…

A: In this question,  If the frequency f= 50Hz. Find the speed N?  We know N= 120f/P

Q: Write the types and shortly explain the magnetic losses for electrical machines

A: we need to explain the types and shortly explain the magnetic losses for electrical machines

Q: An electromagnet has a movable iron part and dimensions of magnetic circuit with uniform cross…

A: a) R= 1697652.73 H-1, L= 9.694 mHb) flux= 70.69 micro Wb, flux density= 0.118 T, field intensity of…

Q: The norm of operation and response mode of magnetic substances, and what happens if the electrical…

A:

Q: Indicate whether the following - statement are true or false

A: in the dc machine the emf can be calculated using the following equation  E = ∅ZPN60 A

Q: The DC shunt generator with the terminal voltage 350 V, armature drop 6 V and the total brush drop 4…

A: A dc shunt generator V=350V Armature drop=6v Brush drop= 4v

Q: What is a prime mover? What are different types of it?

A:

Gear Motor

A gear motor is a combination of a gearbox and an electric motor. This combination of two systems is used for efficient usage of the motor. It makes a cost-effective solution for high torque, low-speed applications. These motors are used in our household as, garage door openers, alarm clocks. In commercial areas, hospital beds, cranes.