Question 6 A 10 KW full load output power of shunt generator having an armature circuit resistance of 0.75 Q and a field resistance of 125 Q, generates a terminal voltage of 250 V at full load, Rotational losses is 600W. the efficiency of the generator at full load equals to 80.49% 82.17% 81.81% 79.22%
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Q: 11. A 20 kW, 440-V, short-shunt, compound d.c. generator has a full-load efficiency of 87%. If the…
A: Given: A short-shunt compound dc generator whose efficiency is 87%. According to question: The Load…
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A: Ans . False
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A: Impedance in ohms = per unit impedance × base impedance. Internal induced voltage= terminal…
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Q: The voltage regulation of synchronous generator is defined as the rise in voltage when the load is…
A: Voltage regulation:- it is defined as the measure of change in the voltage magnitude between the…
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A: In this question we need to find power delivered by genrator , armature current and power factor
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A: Given: Three generators are connected in parallel having: Each armature resistance, Ra=0.2 Ω Total…
Q: 3. A three phase, 50 Hz, 4800V, 6 pole Y-connected synchronous generator connected to an infinite…
A: Since you posted the multiple questions. So I am solve first 3 questions for you
Q: A 50 kW, 250 V de shunt generator has a field-circuit resistance of 60 Q and an armature resistance…
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Q: Q3: Two d.c. shunt generators connected in parallel, each having an armature resistance of 0.1 n.…
A: no of generators = 2total load = 100 kwTerminal votlagea =200 VField current raised = 4%
Q: A Short shunt compound generator delivers a load current of (16)A at 400V. Armature resistance 0.08…
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Q: A. A 20KW, 440V, SHORT SHUNT COMPOUND DC GENERATOR HAS FULL LOAD EFFICIENCY OF 87%. IF THE…
A: NOTE: We’ll answer the first question since the exact one wasn’t specified. Please submit a new…
Q: A 3 phase 1.2 MVA, 10 kV star connected synchronous generator has Zs= 0.2+J10 ohm. Using circle…
A: Synchronous Generators, often known as alternators, are the most commonly used generators for…
Q: EMachines A 100 MVA, 11.5 kV 0.8 pf lagging 50-Hz two pole Y-connected synchronous generator has a…
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Q: A 240-V, short-shunt, cumulative compound generator is rated at 100 A The shunt field current is 3…
A: Efficiency: It tells that how much input power in applied to the machine and how much power is…
Q: ) A 50 MVA, 30 kV, three-phase, 50 Hz synchronous generator have a synchronous reactance of 9 Q per…
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Q: Q3: Two d.c. shunt generators connected in parallel, each having an armature resistance of 0.1 n,…
A: Given Data: Armature resistance = 0.1 ohm Terminal voltage = 200 V filed current increased by 4 %
Q: |--E Q3) In a long-shunt compund generator, the terminal voltage is 230 V, when it delivers 150 A.…
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Q: A 50 Hz, 4-pole, Y-connected synchronous generator is supplying a load with Vt = 220-V /phase at…
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Q: Two d.c. shunt generators connected in parallel, each having an armature resistance of 0.1 Q, and…
A: Given two DC shunt generators connected in parallel Armature resistance Ra=0.1 ΩTotal load PL=100…
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Q: A three-phase, Y-connected, 220 V, 5 kVA, salient-pole synchronous generator is employed to supply…
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Q: A 10 KW full load output power of shunt generator having an armature circuit resistance of 0.75 Q…
A: In this question we need to find a efficiency of generator.
Q: short-shunt compound generator has armature, shunt field and series field resistances of 0.5 Ω, 156…
A: In this question we will find generated emf of short shunt compound generator...
Q: Which of the following factor is responsible for negative voltage regulation of a DC generator? Over…
A: In this question we will find in which dc generator negative voltage regulation occurs...
Q: Ql:A: The following data apply to a 100-kW 250-V six-pole, 900-rpm compound generator (long-shunt…
A: Given No Load Losses=3840Wstray losses =…
Q: Q3: Two d.c. shunt generators connected in parallel, each having an armature resistance of 0.1 0,…
A: Load supplied by each of the generators, Load = 100 kW2 = 50 kW Terminal voltage of each generator =…
Q: > A 25 kW Shunt Generator generates terminal voltage at full load is 400V and has a resistances of…
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Q: A 10 KW full load output power of shunt generator having an armature circuit resistance of 0.75 n…
A: In this we will find efficiency..
Q: A three-phase, 12-kV, 60 Hz, 6 pole wye connected synchronous generator has synchronous reactance of…
A: Given values are - Vt=12kVf=60HzP=6XS=15OhmEA=13kV
Q: A three phase, 50 Hz, 4800V, 6 pole Y-connected synchronous generator connected to an infinite bus…
A: from given electrical power output we will find out the Excitation voltage. From excitation voltage…
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A: Calculating shunt current If=VTRfIf=230 V92 ΩIf=2.5 A Calculating armature current…
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A: Short Shunt D.C generator circuit : In the above figure V - Voltage across the shunt field…
Q: 4 A 20 kW, 440-V, short-shunt, compound d.c. generator has a full-load efficiency of 87%. If the…
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Q: A non salient pole synchronous generator having 0.8pu as the synchronous reactance and it is…
A: We will use phasor method to calculate Induced emf Induced emf = terminal voltage + Voltage drop
Q: A 10 KW full load output power of shunt generator having an armature circuit resistance of 0.75 Q…
A:
Q: A three phase, 50 Hz, 4800V, 6 pole Y-connected synchronous generator connected to an infinite bus…
A:
Q: long shunt cumulative compound dc generator delivers a load current of 60A at 440V. The shunt field…
A: In this question we need to find a induced emf and load resistance.
Q: Q21) A 5-k VA, 220-V, Y-connected, three-phase, salient-pole synchronous generator is used to supply…
A: Note:- As per our guidelines we are supposed to answer?️ only one question. Kindly repost other…
Q: A 4 pole DC shunt generator with wave wound armature having 383 conductors, has to supply a load of…
A: we will use KVL and KCL to find the armature current and generated EMF . From generated EMF we will…
Q: shunt generator with a capacity of 250 kW and a voltage of 250 V has an armature circuit resistance…
A: Given, A shunt generator has, Terminal voltage (Vt)= 250 V Output power (Pout) = 250 kW Armerture…
Q: A three phase, 50 Hz, 4800V, 6 pole Y-connected synchronous generator connected to an infinite bus…
A: I think there is no concept of output torque. there are two torques, one is shaft torque and other…
Q: A long shunt compound DC generator delivers a load current of 150A at 230V and has armature, series…
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Q: A separately excited DC generator has rated terminal voltage and full load armature current of 220v…
A: In this question, We need to determine the a) The induced emf and torque at full load. b) The emf…
Q: A 10kW, 125V long shunt compound generator has rotational losses amounting to 580W. The motor…
A: In this question we need to find a armature genrated voltage and efficiency at full load.
Q: A. What is its synchronous reactance and armature resistance in ohms? B. What is the magnitude of…
A: It is given that: S=100 MVAVL=11.5 KVf=50 HzP=2Xsp.u.=0.8Rap.u.=0.012
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- A 3 phase 4MVA, 12 kV star connected synchronous generator has Zs= 0.8+J30 ohm. Using circle diagram only, find: 1. The output power developed at unity power factor with excitation equal to 1.25 of rated voltage. 2. The load angle and power factor if the generator supplies (1500 KW) at rated voltage and excitation lequal to (1.2) of rated voltage. 3. Repeat part (2) when .armature resistance is neglectedA three-phase, Y-connected, 220 V, 5 kVA, salient-pole synchronous generator is employed to supply power to a load with unitary fp. By means of a slip test, the direct-axis synchronous reactance is determined to be 12 Ω and the quadrature-axis synchronous reactance, 7 Ω. Consider that the rated current is delivered to the load at the rated voltage and that the armature resistance is negligible. (a) Calculate the corresponding value of the excitation voltage. (b) What is the value of the internal phase shift angle? (c) What is the value of the power angle?A short shunt compound generator has an armature; series field and shunt field resistances of 0.031Ω, 0.04Ω and 100Ω respectively. At rated load condition, the terminal voltage is 400V while the armature is developing an emf of 409V. Find the kW delivered to the load at rated condition.
- A separately excited generator has no-load voltage of 125V. A certain load rated at 1200W, 120V is then connected at the terminal. Calculate the series resistance needed to connect to the armature circuit in order for the load to operate at rated condition if the armature resistance is 0.0692Ω.A long shunt cumulative compound dc generator delivers a load current of 60A at 440V. The shunt field resistance , series field resistance and armature resistance are 80, 0.9 and 0.4 respectively. Calculate the induced emf and load resistance.Explain the conditions for parallel operation of synchronous generators. A three phase, wye connected, synchronous generator is rated 150 MW, 0.85 lagging power factor, 12.6 kV, 60 Hz, and 1800 rpm. Each winding has an armature resistance of 0.05Q and a synchronous reactance of 0.6Q. Draw the phasor diagram with values, show torque angle and determine the induced voltage for the condition of rated load.
- A 20KW, 440V, short shunt compound dc generator has full load efficiency of 87%. If the resistance of the armature and interpoles is 0.4ohm and that of the series and shunt fields 0.25ohm and 240ohms respectively, calculate the combined bearing friction, windage and core loss of the machine A 10 kW 250 volts self-excited generator, when delivering rated load, has an armature-circuit voltage drop of 5% of the terminal voltage and a shunt field current equal to 5% of the rated load current. The resistance of the armature is 0.02 ohm. Calculate the voltage generated and power output.The armature, series field and shunt field resistances of 125 kW, 250 V long shunt cummulative compound DC generator are 0.025 ohms, 0.01 ohms and 30 ohms respectively. If stray power loss at rated load is 5 kW, determine the power in the armature fieldA DC shunt generator has a full load output of 10kW at a terminal voltage of 240V. The armature and the shunt field winding resistances are 0.6 and 160 ohms respectively. The sum of the mechanical and core-losses is 500W. calculate the power required in kW at the driving shaft at full-load, and the corresponding efficiency and voltage regulation
- A short shunt compound DC generator delivers a load current of 30 A at 220 V and has armature, series field and shunt field resistances of 0.05, 0.3 and 200Ω respectively. Calculate the induced emf, the armature current and the voltage regulation. Allow 1 V per brush for contact droTwo similar 6,600-V, 3-φ, generators are running in parallel on constant-voltage and frequency bus bars. Each has an equivalent resistance and reactance of 0.05 Ω and 0.5 Ω respectively and supplies one half of a total load of 10,000 kW at a lagging p.f. of 0.8, the two machines being similarly excited. If the excitation of one machine be adjusted until the armature current is 438 A and the steam supply to the turbine remains unchanged, find the armature current, the e.m.f. and the p.f. of the other alternator. [789 A, 7200 V, 0.556]A 220V short-shunt compound generator has armature resistance, series field resistance and shunt field resistances of 0.6, 0.44 and 300 - 16 respectively. If the generator supplies a 10+16 kW load at a rated voltage, find the induced voltage in the armature. Ignore armature reaction. Find the efficiency if the mech and core loss is 500W