Draw the phasor diagrams for the following values of the power coefficient, ignoring the armature winding resistance of a 3-phase, star- connected, dislocated-pole synchronous generator. a) 0.8 inductive b)0.8 сәраcitivе c) 1 omic

Q: A 3-phase, Y-connected synchronous generatorisrated 15 MVA, 13.8 kV. Its resistance is negligible,…

A: An alternator/Synchronous generator is a type of electrical machine that converts mechanical energy…

Q: A 3-phase, Y-connected synchronous generatorisrated 15 MVA, 13.8 kV. Its resistance is negligible,…

A: An alternator/Synchronous generator is a type of electrical machine that converts mechanical energy…

Q: The terminal voltage of a 150 kW series generator is 600 V at rated load. Determine the generated…

A:

Q: A two-pole Y-connected synchronous generator has a voltage level of 2300 V, a capacity of 1000 kVA,…

A: Given P=2 V=2300 V S=1000 kVA pf=0.8 lagging Ra=0.15 Ω Xa=1.1  Ω f=50 Hz PFW=24 kW Pcore=18 kW

Q: A three phase synchronous generator 110 MVA, 11 KV, 50 Hz has synchronous reactance of 1.5 p.u. the…

A: Given data : Synchronous reactance Xp.u=1.5 p.u The supplies power by synchronous generator P=70MW…

Q: 04 2 respectively. The load current is 100 A at 120 V. Find the induced e.m.f. and the armature…

A: SOLUTION- a) Long shunt         load voltage  V = 120 Vload current IL = 100 A Ra = 0.062 ohmRse =…

Q: 18. The external characteristic of a shunt generator can be obtained directly from its -…

A: 18..>> The external characteristic of shunt generator can be obtained by directly from its…

Q: Some measurements of a shunt generator are given in the table below. Fill in the blanks in the table…

A: Given shunt generator measurement as shown

Q: In three phase, a 100KVA, 6.6 kV Y-connected cylindrical pole synchronous gen. has 20-ohm as…

A: The circuit diagram for the synchronous generator is shown below: Where, Ef is the induced emf and…

Q: A long shunt compound generator has a shunt field with 1200 turns per pole and a series field with…

A:

Q: ) Name the component in the generator which produces unidirectional current. i)Draw the experimental…

A: The shunt generator delivers 160A (IL) at a terminal voltage of 230V (Vt). The shunt field current…

Q: At standstill, the impedances of the inner and outer cages of an induction motor are Z, = 0.02 + j2…

A: The impedance of the inner cage at the slip s is given as,  Zi=0.02+j2 ΩZI=0.02s2+22 The impedance…

Q: a) A three-phase, 11 kV, 50 Hz, four poles delta-connected synchronous generator has an armature…

A:

Q: 1. A 30-kVA, 440-V, 50-Hz, 3-0, star-connected synchronous generator gave the following test data:…

A: Since you have asked multiple questions, we will solve one question for you. If you want any…

Q: Power coefficient of a 3-phase, star-connected, salient-pole synchronous generator, ignoring the…

A: In this question we need to draw a phase diagram at a given loading condition.

Q: 400 V 50 Hz, Y-connected, 6-pole synchronous generator per phase synchronous reactance 1.0 Ω at back…

A:

Q: A 6600V, 3-ph, Y-connected alternator has a synchronous impedance of (0.4+j6) ohm per phase.…

A:

Q: Problem 4.4: A 3-phase, Y-connected synchronous generator is rated 15 MVA, 13.8 kV. Its resistance…

A: Generated emf = terminal voltage + voltage drop in armature reactance.

Q: A No Load test conducted on a 3-phase star connected induction motor resulted in a per phase power…

A: As per the guidelines it is instructed to do first question when multiple questions are posted.…

Q: Y-connected

A:

Q: A three-phase 480-V 1200-kVA synchronous generator supplies rated load at a lagging power factor of…

A:

Q: A 3-phase, 50MVA, 32-KV, 0.85-PF- lagging, 50-Hz, 4-pole, Y-connected steam-turbine generator has a…

A: In this question we need to find reactive power delivered by the genrator

Q: A 50 MVA, 32-KV, 0.85-PF-lagging, 50-Hz, 4-pole, Y-connected, 3-phase, steam-turbine generator has a…

A:

Q: A 381 V, 50 Hz, Y-connected, eight poles synchronous generator has the OCC given in tabular form…

A: In this question we need to find a Field current required to keep a terminal voltage 381 V.

Q: In three phase, a 100KVA, 6.6 kV Y-connected cylindrical pole synchronous gen. has 20-ohm as…

A: It is a given that the cylindrical pole synchronous generator is a rating of 100 kVA, 6.6 kV. Since…

Q: A 50 MVA, 3-phase, 31.2-KV, 0.85-PF-lagging, 50-Hz, 4-pole, Y-connected steam-turbine generator has…

A:

Q: A 50 MVA, 3-phase, 31.2-KV, 0.85- PF-lagging, 50-Hz, 4-pole, Y- connected steam-turbine generator…

A: In this question we need to armature current and power factor of a genrator.

Q: 1-Plot the External, Internal and No-load characteristics curves of a de series generator.

A: You have posted multiple questions, so I am solving the 1st questions for you  1) Based on the given…

Q: A 690 KVA, 4200-V, 60 Hz, 0.9 PF lagging, Delta-connected, 8- pole synchronous generator has an…

A: A generator is an electrical machine which converts mechanical energy to electrical energy. It is…

Q: Open circuit characteristic of a d.c. generator gives relation between * V and If E and la V and la…

A:

Q: The power factor of a 3-phase, star-connected, salient-pole synchronous generator is ignored by the…

A: In this question we need to draw a phasor diagram of a synchronous genrator for the given loaded…

Q: orrect or dislike  clear answer The equivalent synchronous reactance of a 10kVA 230V three-phase…

A: Given synchronous generator with 10 KVA,230 v Synchronous reactance xs=1.2 ΩArmature resistance…

Q: A 50-MVA, 30-kV, three-phase synchronous generator has a synchronous reactance of 8 Ohms/phase and…

A: According to the question we need to calculate the value of excitation per phase and power angle.

Q: A long-shunt d.c. compound generator supplies 100A at 190V. The resistance of armature, series field…

A: Given: I =100 V=190v Ra= 0.02 Rse=0.06 Rsh=85

Q: Which of the following factor is responsible for negative voltage regulation of a DC generator? O…

A: Over compound dc generator has negative voltage regulation.

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 350 V, 50 Hz, Y-connected, eight poles synchronous generator has the OCC given in tabular form…

A:

Q: Problem 1 A three phase, 400 V, 15 kVA, 60 Hz, Y-connected synchronous generator is connected to a…

A: Explanation: “Since you have posted a question with multiple sub-parts, we will solve the first…

Q: delta-connected, the synchronous generator has a winding resistance of 0.2 ohms/phase and a…

A:

Q: A three-phase synchronous generator is rated 60 MVA, 11 kV. It has an armature resistance ra = 0.1…

A: a Choosing Vb=11 V and MVAb=60 MVAZd=0.1+j1.65 pu=1.653∠86.53V=1111= 1 per…

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

A: Ans-:  In 3-phase synchronous generator -: 3 V×I = 9 KVA = Apparent power ------ 1) Putting value in…

Q: A 40 MVA, 24-KV, 0.85-PF-lagging, 50-Hz, 4-pole, Delta-connected, 3- phase, steam-turbine generator…

A: In this question we need to find a the absolute maximum output power of this generator.

Q: A 50 MVA, 30 kV, three-phase, 60 Hz synchronous generator has a synchronous reactance of 0.9 Q per…

A: The solution is given below

Q: A 480 V, 60 Hz ,Delta Connected, Four Poles Synchronous Generator has A Direct Axis Reactance of 0.1…

A:

Q: Q2 (a) Indicate any changes in a stand alone synchronous generators performance or operating limits…

A: “Since you have asked multiple questions, we will solve the first question for you. If youwant any…

Q: A 690 KVA, 4200-V, 60 Hz, 0.9 PF lagging, Delta-connected, 8- pole synchronous generator has an…

A: Synchronous impedance method: This method does not give exact results but it is important because it…

Q: A 10 KVA, 400 V, 3 phase, star cónnected synchronous generator has an armature resistance of 0.80…

A: The voltage of the generator is given as:

Q: 400 KVA, 400 V three-phase star connected 2p = 2 pole round rotor synchronous The leakage reactance…

A:

Q: A 3-phase, 50MVA, 32-KV, 0.85-PF-lagging, 50-Hz, 4-pole, Y-connected steam-turbine generator has a…

A: Given, A 3-phase, 50 MVA, 32 KV,0.85 PF lagging, 50 Hz, 4 Pole, star connected steam turbine…

Synchronous Motor

The synchronous motor is an AC electric type motor where at a steady-state the shaft rotation is synchronized with the supply current variable-frequency. To an integral number of AC cycles, the rotation period is exactly equal. The stator of the motor in the synchronous motor contains multi-phase AC electromagnets due to which a magnetic field is created that rotates in time with the oscillation of the line current. The rotor contains a permanent magnet and the rotor rotates in synchronization with the stator field at the same rate and provides the second synchronized magnetic field which is rotating in nature as a result. When the synchronous motor is supplied with independently excited multi-phase AC electromagnets on both the rotor and the stator, it is termed as a doubly-fed machine. The most widely used AC-type motors are the synchronous AC motor and the induction AC motors.