- A four-pole DC shunt generator with lap connected armature has field and armature resistance of 50 N and 0.1 Q respectively. The generator is supplying a load of 2.4 kW at 100 V, the generated e.m.f. will be * O a) 102.6 V O b) 104.4 V O c) 106.2 V O d) 108.4 V
Q: How many poles should a 60-Hz generator have, if it is connected to a turbine operating under a…
A:
Q: A lap wound dc generator having 50slots with 15conductors per slot generated at no led emf of 400v…
A: The detailed solution is attached with.
Q: Example 3 A short-shunt compound generator delivers a load current of 30 A at 220 V. It has…
A: This question belongs to electrical machine . It is based on the concept of generated e.m.f. in a…
Q: The supplies 11 kw at a terminal voltage of 200 v. The resistances of armature, shunt field and the…
A: According to question: The load current 'IL' , shunt current 'Ish' and series current 'Ise' is…
Q: A Dc shunt generator has the following O.C.C. at 800 r p m Field current (A) 1 1.5 2 0.5 2.5 3 3.5…
A: Given: A DC shunt generator has Speed, N=800 rpm Armature resistance, Ra=0.1 Ω Shunt field…
Q: A 400 V, 50 Hz, four Poles, Y connectedinduction motorhas the parameters in ohms, given in the table…
A: Disclaimer: Since you have asked multipart questions, we will solve the first three subpart for…
Q: The O.C.C. of a D.C shunt generator running at 300 r.p.m. is as follows. Ir (A) 2 3 4 6 7 Eo1 (V)…
A:
Q: eld resistance is 52.5Ω and the series field resistance is 0.1Ω. if the SPL amounts to 631W,…
A:
Q: dc shunt generator 50 V at the load 6A, rotating 700 r.p.m at the torque 4 N.m. Find the efficiency…
A:
Q: Two separately excited DC generators are connected in parallel to supply a total load current of 100…
A:
Q: PROBLEM: A three-phase, 3 KV, P=24, 50Hz, Y-connected slip ring IM has a rotor resistance of 0.015…
A: Given: A three-phase, 3 KV Y-connected slip ring IM having Number of poles, P=24 Frequency, f=50 Hz…
Q: Q.2: The O.C.C. test of a DC shunt generator at speed 1500 r.p.m. is: Field current-A 2 4 5 7…
A: first we will draw the equivalent circuit diagram of a DC shunt generator now as given in the…
Q: a dc shunt generator supplies a load of 10kW at 250V calculate the induced emf,if the armature…
A: DC Generator: DC Generator is an electrical device which converts mechanical input energy into…
Q: A 25kW, 250V DC shunt generator has armature and field resistances of 0.06 ohm and 100 ohm…
A: A d.c. generator is an electrical machine in which mechanical energy gets converted into electrical…
Q: Find the maximum efficiency of shunt generator has the armature resistance and shunt resistance 0.08…
A: Given Ra=0.08 Ω Rsh=120 Ω Wr=800 W VT=250 V
Q: A shunt generator supplies a 33kW load at 210V through cables of resistance, R = %3D 122m2. If the…
A:
Q: Q1) A long shunt compound generator is supplying a load 100 A at a terminal voltage of 220 V. The…
A: long DC shunt compound generator, i.e shunt field winding connect after series field winding has…
Q: 4. A 20-kW, 250-V dc series generator has armature and series field winding resistances of 0.095 Q…
A: Given 20kW 250V Armature resistance = 0.095 Ohms Series field winding resistance=0.16 Ohms
Q: A) A generator has the following ratings: 6-poles, 50 Hz, 33 KV, 80 MW and a 0.9 power factor lag.…
A: Given that P=6-poles, f= 50 Hz, VL= 33 KV, Power P= 80 MW and Cos(phi)= 0.9 power factor lag.…
Q: The armature reaction of the DC generator reduces the generated EMF. Select one: O True False
A: Choose the correct option The given statement The armature reaction of the DC Generator reduce the…
Q: short-shunt connected compound DC generator delivers 219 A to a load at 250 V. Its shunt-field…
A: Voltage across shunt field winding= terminal voltage+ Drop in series field winding. Using ohms law…
Q: A shunt generator has an external characteristic whose terminal voltage is given by the equation…
A:
Q: A 35 kW, 400 V, short shunt, compound dc generator has a full load efficiency of 85 %. If the…
A: Efficiency determines how a machine runs, it is the ratio of output to input, provided if the output…
Q: A non-salient pole, three-phase, Y-connected synchronous generator with synchronous reactance of Xs=…
A: Power delivered = sqrt(3)* Line to line voltage* armature current* power factor. EMF induced in…
Q: 24. What will be the air gap power (in watts) developed by a 3-phase induction motor, whose ratings…
A:
Q: Q1. shunt generator delivers a full-Hoad outpu power of 8 Kw at 200 V. It has an armature and shunt…
A: According to our policy , we will answer only the first part of the question . If you want solution…
Q: Q1. shunt generator delivers a full-Hoad outpu power of 8 Kw at 200 v. It has an armature and shunt…
A: We are authorized to answer one question at a time, since you have not mentioned which question you…
Q: The supplies 11 kw at a terminal voltage of 200 v. The resistances of armature, shunt field and the…
A: The given machine is a long shunt generator.
Q: 5. The frequency of magnetic reversal (f) is given by.. 3. In a DC motor, the mechanical power…
A: 1). According to Faradays law of electromagnetic induction the induced emf is given by Eind = -N ×…
Q: A 2300-V 1000-kVA 0.8-PF-lagging 60-Hz two-pole Y-connected synchronous generator has asynchronous…
A:
Q: A four-pole, 600-V synchronous generator is connected to an infinite bus that supplies a 60-Hz,…
A: Referring to the question, the information are provided as:
Q: Two separately excited DC generators are connected in parallel to supply a total load of 300 A. The…
A: Current shared by generator is such that terminal voltage is same for both generators. power output…
Q: A dc shunt generator has a shunt field winding resistance of 100 ohms. It supplies a load of 5 kW at…
A: Given : In the given circuit the they have mentioned a DC shunt generator circuit. They want to…
Q: 2. The OCC of a shunt generator running at 850 rpm is given below: Field current (A): 0.8 1.6 2.4…
A:
Q: A shunt generator supplies a 31kW load at 200V through cables of resistance, R = 108mN. If the field…
A:
Q: Q.2: Two separately excited DC generators are connected in parallel to supply a tctal load of 300 A…
A: From the parallel operation of generators..
Q: Example 26.12. A separately excited generator, when running at 1000 r.p.m. supplied 200 A at 125 V.…
A: Given separately excited generatorRunning at speed N1 1000 rpm supplied current IL1=200 Asupplied…
Q: - A four-pole DC shunt generator with lap connected armature has field and armature resistance of 50…
A: Given values, Shunt resistance Rsh= 50 ohm Armature resistance Ra= 0.1 ohm Supply voltage to the…
Q: The O.C.C. test of a DC shunt generator at speed 1500 r.p.m. is: Field current-A 2 4 8 9 10 Armature…
A: The O.C.C. curve is just the magnetization curve, and it is nearly the same for all generator types.…
Q: A self-excited DC generator delivers 10kW at terminal voltage of 250V. Its armature resistance is…
A: It is given that: Vt=250 VRa=0.2 ΩRf=50 ΩM=0.02 HPout=10 KW=10000 W
Q: A 20-kW, 250-V short shunt cumulatively compounded dc generator has the :following characteristics…
A: Given dataRa=0.05Ω, Rf=1000Ω,Rsr=0.025ΩPo=20 kW, V=250V
Q: A Dc shunt generator has the following O.C.C. at 800 r pm Field current (A) 0.5 1 1.5 2 2.5 3 2 3.5…
A: Given: A DC shunt generator has Speed, N=800 rpm Armature resistance, Ra=0.1 Ω Shunt field…
Q: 1) A long-shunt generator running at 1000 rp.m. supplies 22 kW at a terminal voltage of 220 V. The…
A: In this question, We need to determine the copper losses, iron and friction losses and torque…
Q: A separately excited D.C. generator has armature circuit resistance of 0.15 Q. When running at 900…
A: In this question, A separately excited DC generator, Armature resistance Ra= 0.15 ohm Speed N=…
Q: A 480 V, 60 Hz ,Delta Connected, Four Poles Synchronous Generator has A Direct Axis Reactance of 0.1…
A:
Q: a delta connected, round rotor 3-phase synchronous generator with mains phase voltage V1L= 400 V:…
A: output power in synchronous generator = Ef×VtXssin( load angle) and generator driving torque =…
Q: b) Fill in the blanks. 1. According to Faraday's Law of Electromagnetic Induction, an induced emf…
A:
Q: A 25 kW , 250 V long -shunt compound D.C. Generator running at 1000 r.p.m , the resistances of…
A: Given D.C long shunt generator V=250 v N=1000 rpm efficiency =80% iron and friction losses =3000 W…
Q: (c) A 2400 V, 1000 KVA, 0.85 power factor (PF) lagging, 50 Hz six-poles, Y-connected synchronous…
A: Given: A 2400 V, 1000 kVA, 0.85 power factor (PF) lagging, 50 Hz six-poles, Y-connected synchronous…
Step by step
Solved in 3 steps with 3 images
- A short shunt compound generator supplies a load of 10 kW at 200 V through a pair of feeder and series field resistance 0.10 ohm. Armature resistance, shunt field resistance and series field resistance are 0.01 ohm, 52.2 ohms and 0.10 ohm, respectively. If the core friction and windage losses amount to 631 watts, the BHP of the driving engine is nearest to. A 480-V 200-kVA 0.8-power-factor-lagging 60-Hz two-pole Y-connected synchronous generator has asynchronous reactance of 0.25 Ω and an armature resistance of 0.03 Ω. At 60 Hz, its friction and windagelosses are 6 kW, and its core losses are 4 kW. The field circuit has a dc voltage of 200 V, and themaximum IF is 10 A. The resistance of the field circuit is adjustable over the range from 20 to 200 Ω.The OCC of this generator is shown in Figure P5-1.(a) How much field current is required to make VT equal to 480 V when the generator is running at noload?(b) What is the internal generated voltage of this machine at rated conditions?(c) How much field current is required to make VT equal to 480 V when the generator is running at ratedconditions?(d) How much power and torque must the generator’s prime mover be capable of supplying?A long shunt compound dc generator delivers a load current of 69 A at 396 V and has armature, series field and shunt field resistances of 0.096 Ω, 0.014 Ω, and 259 Ω, respectively. Calculate the armature current in ampere.
- A 50 kW, 220 V, dc shunt generators has an armature resistance including brushes of 0.026 ohms. If the shunt field resistance is 52 Ω. Find the induced emf at rated load.Q2: A500 kW, 500 V, 10 poles d.c generator has lap wound armature Find the electrical angle shift of brushes when AT4 / pole = 208 AT. If the ATC for same generator when connected as wave wound is 2600 AT when the brushes on G.N.A.Q2: A500 kW , 500 V, 10 poles d.c generator has lap wound armature Find the electrical angle shift of brushes when ATd / pole = 208 AT . If the ATC for same generator when connected as wave wound is 2600 AT when the brushes on G.N.A .
- A DC shunt generator supplies a load of 27 kW at 210 V through the cables of resistance, R = 126 mΩ. If the field winding resistance, Rf = 62 Ω and the armature resistance, Ra = 35 mΩ, Determine (a) the terminal voltage, and (b) the E.m.f. generated in the armature. The terminal voltage is = The E.m.f generated in armature is =The synchronous reactance of the direct-axis and quadrature-axis of a three-phase,40-pole, 50 Hz, 13,8 kV, salient-pole synchronous generator is 2,38 Ω and 1,33 Ωrespectively. The resistance of the star-connected stator is negligible. The load angle ofthe machine is 30°e and the excitation is set to induce an emf of 167%. Sketch the phasordiagram and calculate:(a) current(b) power(c) reluctance torque(d) the maximum load angle(e) the maximum power developedA long shunt compound DC generator delivers a load current of 150A at 230V and has armature, series field and shunt field resistances of 0.032, 0.015 and 92Ωrespectively. Calculate (i) induced emf (ii) total power generated and (iii) distribution of this power (iv) voltage regulation
- A shunt generator has a no-load terminal voltage of 270 and a voltage of 245 when it delivers 180 amp. Assume a straight-line characteristic and determine the following: the voltage when the current is 120 amp and What is the equivalent load resistance under this condition?A lap wound dc generator having 50slots with 15conductors per slot generated at no led emf of 400v when running at 1000 rpm suppose if the same generator is desired to genate 220v on open circuit. Suggest the speed at which it has to be rotatedProblem: The field current of a 100-kW, 250V shunt generator is 5A when delivering power at rated terminal voltage and rated load current. The combined armature and brush resistance is 0.1 ohm. 1.)Calculate the generated power in kW. 2.)What is the electrical efficiency? * Formatt: given required solution answer