Why oncoming generator’s frequency needs to be slightly higher than running system frequency in case of alternators’ parallel operation. Explain with house diagram

Q: Compare between closed loop system and open loop system of mechanical and exciter of synchronous…

A: One of the most significant difference between the open loop and closed loop control system is that…

Q: A compound generator is to Supply aLodd.of 250lamps eack raded at 1ooW, 25ON.Cine.armature, series…

A: A compound generator has, Terminal voltage Vt= 250 V  Load has 250 lapms and each lamp rated at 100…

Q: 1- Piot the external characteristic for the compound renerator Wihat difforo

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: Hi! I'm having trouble answering this problem... Please I hope you can help me asap for this review.…

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Q: sheet Does the external chara of series generator represent its load chara ? Why ?

A: Does the external characteristics of series generator represents its load characteristics?why?

Q: DIFFERENTIATE DC GENERATOR OVER AC GENERATOR ACCORDING TO ITS CONSTRUCTION.

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Q: 2- Why synchronous generator used in steam turbine power station has rotor of small diameter and…

A: Synchronous generators are the important parts of electrical machines and power systems in terms of…

Q: B- 1- Draw phasor diagram of an alternator works at lagging p.f.? Mention the alternator EMF…

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Q: C-1. Which of the two stator windings used on single-phase split-phase motors is made up of the…

A: C-1 The single-phase split-phase motor consists of two windings, starting winding and main winding.…

Q: Calculate the number of series turns necessary per pole on a compound generator to give a level…

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Q: A three-phase, Y-connected, 6.6 kV, 1 MVA, 60 Hz synchronous generator has armature resistance of 2…

A: The solution for the given alternator problem is as follows.

Q: 1. How does loading of the Generator affect the Generator’s Terminal Voltage (VT) and Load Current…

A: It is asked the affect of loading on the Generator’s Terminal Voltage (VT) and Load Current (IL). We…

Q: Two shunt generators are connected in parallel to supply a common load. Generator A has a power…

A: From given full load power calculate armature resistance of each generator.  Then using ohms law…

Q: 2. Does the external chara. Of series generator represent its load chara? Why?

A: Electrical machines can be either generator or motors. They can be either Ac machines or DC…

Q: 1.2 Adding two binary floating numbers 1.1000wo x 2 and-1.0100wo X 22. Assume that we keep 4 bits…

A: Given numbers: a=1.1000×2-1 (in binary) a=0.75 (in decimal) b=-1.0100×2-2 (in binary) b=-0.3125 (in…

Q: Name the losses of a d.e. generator and classify them into (i) constant and (ii) variable lasses.

A: DC Generator: DC Generator is an electromechanical device which converts mechanical energy to…

Q: TUTORIAL PROBLEMS A 3-phase, star-connected alternator is rated at 15000 kVA, 11 kV. The armature…

A: Given data : Rated KVA S=15000kVA=15MVA Terminal voltage Vt=11kV=Vph=6.3508kV Armature resistance…

Q: does not the generator voltage increase when the excitation current (Ie) increases over the

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Q: 3. Two similar single phase alternators are operating in parallel. The armature winding resistance…

A: In parallel connections circulating current flows from leading angle to lagging angle, assume that…

Q: Q.) Figure below divider bras amplifier Circult. Givent the model Parameter : gm = 5omS emitter (CE)…

A: Brief description: In the above given question they have mentioned an NPN common emitter amplifier…

Q: 1. Draw the N.L characteristics and external characteristics Of series generator, draw the different…

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Q: ne power station has rotor of small diameter and high length other than that used in hydrop

A: A synchronous generator is also known as an alternator in which the AC supply is given to the stator…

Q: ABB company manufactures three phase, 10 kVA, 240 V, 60Hz, 6 pole wye connected synchronous…

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Q: A three phase 6000 V Alternator gave the following open circuit characteristic at normal speed:…

A: Given : Three phase 6000 v alternator Field current in ampr  14 ,18,23,30,43Terminal voltage in volt…

Q: Some test have been made on a 250 kVA, 800 V, 50 Hz three-phase star connected synchronous generator…

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Q: ge regulation at full load current. of armature reaction as it is taken into a

A: A Synchronous generator is an electrical machine used to convert mechanical power into electrical…

Q: The 3-phase, 9 kVa power, 60 Hz, 208V 8-pole synchronous generator winding resistance is negligible…

A: Given S = 9 KVA f = 60 Hz V = 208 V P = j8 ohms

Q: a-how does the behavior of the synchronous generator compare when operated in stand-alone mode vs…

A: Stand-alone Operation:Voltage Control: The terminal voltage of a stand-alone generator is mainly…

Synchronous Generator

In comparison to an asynchronous generator, it is a machine where the rotor speed is equal to the rotating magnetic field produced by the stator, i.e., mechanical speed is equal to the electrical speed, thus called synchronous, and not asynchronous.

Salient Pole Rotor

Salient pole rotor includes a large number of exposed poles mounted on a magnetic wheel. The construction of a bright pole is as shown in the image on the left. The proposed poles are made of metal laminations. The rotor winding is provided on these poles and is supported by pole shoes.