How can the polarity of the voltage delivered by a direct current generator at the brush terminals be inverted?

Q: How are brushes connected in a d.c. generator ?

A:

Q: A 10-pole DC generator has a simplex lap-wound armature containing 100 coils of 10 turns each. The…

A:

Q: Mention what is the difference between generator and alternator?

A: It is asked to mentioned the difference between generator and alternator.

Q: A 4-pole generator having wave wound armature winding has 50 slots, each slots containing 20…

A:

Q: What is short circuit characteristics of (s.c.c) of an alternator Explain? Explain the effect of…

A: According to the bartleby's guideline we should solve only one question so please post another…

Q: Calculate the voltage at the terminals of the generator and the voltage at the feeder in a dc series…

A:

Q: What are the types of Hydroelectric Turbine ?

A:

Q: Speed control 11 12 field 1 h eo stat 5 Prime armature E1 Mover 6. DC Generator Power Supply Load…

A:

Q: What is difference in alternator and generator?

A: Difference between alternator and generator

Q: What is the basic different between the internal characteristics and the external characteristics of…

A: DC shunt generator: It is a direct current generator in which the field winding is connected in…

Q: A generator is loaded with certain load, and its  voltage regulation is very poor. What are various…

A: voltage regulation refers to change in the generator terminal voltage with change in load current.…

Q: A DC generator with an armature resistance of 0.3 ohm and a shunt winding resistance of 125 ohm…

A: For generator ,  Armature current = Load current + shunt field current  developed power = Armature…

Q: A separately-excited DC generator with magnetization curve shown below (Figure 1) is driven by a…

A: VF=15 VRF=2.44 Ωra=0.1 Ω

Q: How does a generator play a crucial role in a power generation system?

A: A generator plays a crucial role in a power generation system as it is the device responsible for…

Q: In a two-pole synchronous generator, the voltage positive peak... a) Is half the negative peak b)…

A: you know by Faraday law of induction e =-Ndϕdt so when value of change in flux is maximum the…

Q: What is generator in electrical engineering?

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

Q: In a 4 pole, 20 kW, 200 V wave wound DC shunt generator, the current in each parallel path will be

A:

Q: What is the effect of an unbalanced load on the output voltage of an alternator?

A: The explanation is as follows.

Q: What is a generator? Why does it work

A: The generator is a device that converts mechanical energy into electrical energy. The principle…

Q: A 4-pole DC shunt generator with wave-wound armature has 40 slots each having 12 conductors.…

A: In this question we need to find the voltage across load in case of wave wound and lap wound…

Q: An 6-pole d.c. generator has 475 armature conductors, and a useful flux of 16 mWb per pole. What…

A: We need to find out generated emf for given machine .

Q: Explain in details how the separately-excited de generator works?

A:

Q: In a motor-generator set, calculate the number of poles required in the motor to convert AC 25 Hz…

A: In this question we have to find out motor poles....

Q: What are the main effects of losses on the performance of the alternator?

A: There are various effects of losses on the performance of alternator. To calculate the efficiency of…

Q: How voltage is built up in dc shunt generator

A: as the name suggests the field winding of the shunt generator is connected in parallel with the…

Q: The armature core of a dc generator is laminated to reduce, copper loss O hysteresis loss eddy…

A: Eddy current loss can be minimized by laminating the armature core of dc generator.

Q: It is too dangerous to connect two generators in parallel if they have different polarities. Explain…

A: consider the given question.

Q: A 4-pole generator having wave wound armature winding has 50 slots, each slots containing 20…

A: Given a DC generator with, Total number of pole, P = 4 Wave wound, so total number of parallel path,…

Q: List the four basic faults which can prevent a self excited generator to buildup voltage.

A: We can define fault as imperfection in electrical system due to which current may get deviated from…

Q: The DC shunt generator with the terminal voltage 350 V, armature drop 7 V and the total brush drop 4…

A: Given that  Terminal voltageVt = 350v  Armature voltage drop Va= 7v Brush dro VB = 4v

DC Generator

An electromechanical machine which converts input mechanical energy to respective output electric energy is called a generator.