What type of Power Losses does windage loss, bearing and brush friction loss is considered? a Stray Losses b Armature Losses c core Losses d Copper Losses

Q: (a) Explain briefly what is fringing effect and leakage flux. (b) A ferromagnetic core is shown in…

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Q: What is the material commonly used for construction of transformer core? Draw the B- H curve for…

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Q: In a transformer setup, two coils with a magnetic core between them, a changing magnetic field…

A: A transformer is a static electric device consisting of two or more electric circuits interlinked by…

Q: What is transformer ? Why not working with dc ?

A: Transformer : transformer is electrical machine which transfer energy form one alternating circuit…

Q: An autotransformer is shown in Figure P14.68. Assume that all of the flux links all of the turns and…

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Q: 3. Obtain the state model for the block diagram shown. 1/s+1 U(s). 1/s 1/s+2 Y(s)

A: From the given block diagram we find a transfer function of the given system and from transfer…

Q: 3) Derive the total reluctance of the magnetic circuit shown in the Figure.

A: The given question involves finding the total reluctance of a magnetic circuit consisting of…

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: purpose of brushes in a dc machine is__________. to change ac to dc signal to remove the losses in…

A: brushes in DC machine is placed between rorating commutator and external circuit. We will consider…

Q: what is current transformers advantage?

A: The circuits shown below represents  a Three-Phase Current Transformer-  The circuit includes- A…

Q: C3 (ii). The primary and secondary winding of an transformer has 95 turns and 20 turns,…

A: Note :- As C3 (ii) & (iii) are not linked with each other. Both have different questions. So as…

Q: transformer

A: If we are giving dc to the transformer it won't work . transformer works on the principle of electro…

Q: Identify, which component of no load current supplies hysteresis loss, in a practical transformer?…

A: In the question choose the correct option?    which component of no load current supplies hysteresis…

Q: (a) find the eddy current frequency of 50Hz (b) find the hysteresis loss in watt at a frequency of…

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Q: Why we use silicon steel in manufacturing induction motor Core ? can we use wood in core…

A: In this question we will write about silicon steel use in making core of IM...

Q: The iron losses in a transformer core at 50 Hz are 1600 W. If the frequency is increased to 60 Hz…

A: Given, The iron losses in a transformer core at 50 Hz are 1600 W. If the frequency is increased to…

Q: Draw the on-load phasor diagram of the transformer and mention the parameters.

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Q: fill inthe blank : field winding has large numberofturns of thin copper wire.                  a.…

A: Correct option is Shunt. shunt field winding has large number of turns of thin copper wire.  Where…

Q: Mechanical losses represent: A. Windage losses B. None of the other choices are correct O C. Losses…

A: In this answer let us try to understand what are mechanical losses as explained below.

Q: a) What would be the speed of the armature, if flux per pole is 0.007 Wb? b) If the armature is…

A: Given,  Number of poles (p) =6 Number of slots=50 Each slot contains 20 conductors. Hence total…

Q: Iron losses represent: O A. Losses due to friction of the moving parts O B. Losses due to…

A: Iron losses are defined as those type of losses that practically occur in an unloaded and loaded…

Q: the armature mmf can be -2 reduced by reluctance of the magnetic the circuit in the region of the…

A: The explanation is as follows.

Q: 4- In DC Shunt genrator, the effect of flux Produced by armater on main Flux Produced by the field…

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Q: The hysteresis loop occurs because: Select one: a. The machine is full-loaded b. some eddy current…

A: consider the given circuit;

Q: xplain why, when steel is subjected to alternating magnetization energy, losses occur due to both…

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Q: Q1: The e.m.f of per turn of the primary winding is 5 volt in a single-phase transformer and the…

A: In this question we need to find the following The induced voltage in the secondary winding of…

Q: The length of a magnetic circuit in a moving iron instrument is 300mm.The coil around the soft iron…

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Q: The amount of inrush current in the primary of a transformer is limited by the........, A- amount of…

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Q: The number of parallel paths and the number of series conductors required for a given kW rating of…

A: In this question , we will write about the number of parallel paths in dc machine depends hoon which…

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.