O In order to exchange the output polarity of the induced electromotive force in the self-excited shunt generator, what shall be exchanged at the same time?
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Q: Discuss how to control the induced voltage of shunt excited generator, discuss the excitation…
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Q: O In order to exchange the output polarity of the induced electromotive force in the self-excited…
A: In oreder to exchange the output polarity of the induced electromotive force in the self-excited…
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Q: 4. What is the required excitation current to obtain the rated voltage at the output terminal of the…
A: Required excitation current to obtain the rated voltage at the output terminal of the generator.
Q: Compare the curve above for Shunt Excited DC Generator Open Circuit Characteristics and the curve…
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Q: Two separately excited DC generators are connected in parallel to supply a total load current of 100…
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Q: 1. How does loading of the Generator affect the Generator’s Terminal Voltage (VT) and Load Current…
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A: The separately-excited DC generator the field winding can be excited by an external source. This…
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…
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Q: What are the reasons for the drop in terminal voltage of self excited shunt generator When loaded???
A: as we see in the load vs terminal Voltage curve their is drop in terminal voltage as load current…
Q: A 280 V terminal voltage of a self-excited shunt generator has an armature resistance of 3.5ohms and…
A: Note: As field current is neglected so load current will be equal to armature current. Therefore ,…
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A: In this question we will write about magnetisation curve of dc generator....
Q: Between a separately-excited and a self-excited DC generator, which is simpler to construct and why?
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Q: A shunt-excited DC generator has Vt vs Field current data curves as shown, for a machine running at…
A: Dear student as per our guidelines we are supposed to answer only one question .kindly report the…
Q: Q2: A: A 10-kW 250-V self-excited generator, when delivering rated load, has an armature-circuit…
A: Power delivered Vt×IL. Armature current =load current +shunt field current. We will find armature…
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: Two similar 6,600-V, 3-φ, generators are running in parallel on constant-voltage and frequency bus…
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Q: Q1. The following data refer to the O.C.C of a D.C separately excited generator at 1000 rpm. Field…
A: Occ graph with given data, from this graph find the no load generated emf.
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A: Given: Separately excited dc generator P=4N=900 rpmE=240 VV=200 VRa=0.2 Ωϕ=10 mWb
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Q: ase the speed slightly or decre shunt-field-circuit resistance slightly. Example 8.21(a). A 6-pole…
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A: Given data: Ra=0.5ΩRse=0.4ΩRsh=250Ω
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Q: How does loading of the Generator affect the Generator’s Terminal Voltage (VT) and Load Current…
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Q: 10. If the MA's of each stage are 3, 5, and 7, and the carrier plate rotates at 20 RPM, what is the…
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Q: no more thank 50 words. In the load characteristics of a separately-excited DC generator, its…
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- Shunt DC generator connection with parameters given below and excitation polynomial Ea = f (if) has been made. The armature reaction at full load is 400At and the generator is rotated at 1800 rpm. Generator idle Find the operating voltage. What is the efficiency of the generator when the armature current is 23 A?Questions:-1. What is the basic different between the internal characteristics and the external characteristics of d.c shunt generator? 2. For which reasons its not possible to develop rated voltage of d.c shunt generator, both in unloaded and loaded conditions? 3- What are the reasons of fall of terminal voltage of a d.c. shunt generator?Q4. Draw the equivalent circuit diagram of self-excited DC shunt generator and explain thefollowing:(i) Using a diagram explain how the generator develops its initial emf and how theinduced voltage reaches up to its operating point?(ii) How you can obtain the magnetization curve for such machine? Explain thesignificance of critical resistance line
- The armature resistance of a 50 KW, 240 V foreign excited generator is 0.02 ohms. Generator Rated voltage is met at rated load. Armature voltage and armature current at rated load calculation? If the output voltage is kept constant at 240V and the output power is reduced to 45 KW. Find the armature voltage required for this?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 field1. How does loading of the Generator affect the Generator’s Terminal Voltage (VT) and Load Current (IL)?2. Write down the Voltage equation of a Separately excited DC Generator.3. What is the reason for drop in Generator’s Terminal voltage, from No load to Full load?
- An 8-pole DC shunt generator with 772 wave-connected armature conductors and running at 500 rpm supplies a load of 10 Ω resistance at a terminal voltage of 230V.The armature and the shunt field resistances are 0.25 Ω and 230 Ω respectively. Find the armature current, induced emf and flux per pole for this machine. [Answer of this question should accompany equivalent circuit diagram ]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 4 pole ,d.c. shunt generator with a shunt field resistance of 50 ohm ,and armature resistance of 1 ohm ,has 400 lap connected conductors in its armature .the flux per pole is 20 mWb, calculate the power absorbed by a load of 10 ohm connected across the armature terminals ,when the generator is driven at 900 r.p.m.
- 1- Based on the exercise, what do you understood about residual magnetism? 2- What is the relationship between the generator’s excitation Current (If) and generator’s field flux ()? 3. How does the Generator’s Field Current (If) affect its Terminal Voltage(EG=VT) ?4. A 6 pole wave wound shunt generator delivers 200A at a terminal voltage of 240V. Ra and Rsh are 0.03Ω and 70Ω respectively. Neglecting brush drop, determine (i) armature current (ii) current per parallel path (iii) generated voltage and (iv) Power developed. armature current ? current per parallel path ? generated voltage ? Power developed ?The output of a shunt generator is 66 A at 100 volts. Armature and field resistances are, respectively, 0.04 ohm and 25 ohms. If the efficiency at this load is 88%, determine the core and friction losses