pole, lap-wound shunt gene 000 r.p.m. The armature a e te rm ina l volta ge when
Q: Q.2 A skuntmator has asupply Voltiga = 200 Volt , armature resistance =4 S2. At certain lond the…
A: Vt=200vra=4 ohm N=1200 rpm ω=2πN60=2π*120060=125.66 rad/secCurrent supplied from supply IL=10AField…
Q: H.W 2/ A four poles d.c Motor with a progressive simplex wave winding, 15 slots, Draw developed…
A:
Q: 2. A 500-V, 50-kVA, 1-0 altermator has an effective resistance of 0.22 A field current of 10 A…
A:
Q: DC compound machine; a) Explain how it works as an engine.(in detail)
A: A DC machine's operating theory is that electric current flows within a magnetic field through a…
Q: Example with 778 wave-connected armature conductors and run- ning at 500 rp.m. supplies a lood of…
A: Since there are multiple questions uploaded so solving the first question accordingly as per the…
Q: Two shunt generators operating in parallel given a total output of 600 A. One machine has an…
A:
Q: The external characteristic of a shunt general can be obtained directly from its characteristic. (a)…
A: 1) Open - circuit the external characteristics of a shunt generator can be obtained directly from…
Q: resistance between two lines is 0.412 Q. Find (a) effective armature resistance (b) synchronous…
A: A 3 phase, 50 Hz, star connected 1000 KVA, 2300 V alternator has short circuit current (Isc) =400…
Q: ur aximum Ans[0.072; 37.5%] istance of 0.020 per phase and standstill to give maximum torque. What…
A: The solution is given below
Q: A short shunt compound generator supplies 100A at 110V. Armature resistance is 0.05Ω and the shunt…
A:
Q: Circul brushes. The field current is 1.8 A Determine (full-load line current (ii) full load shaft…
A: In this question , we will find full load line current , shaft torque etc of dc shunt motor....
Q: Two separately-excited d.c. generators are connected in parallel supply a load of 200 A. The…
A: given that load current I=200 A terminal voltage is V Ia1 +Ia2 = 200A425-V0.05+440-V0.1 =…
Q: 2.A single-phase semiconu small separately excited d. is connected to à single - p = 0.50 ohm and…
A:
Q: An 4-pole d.c. shunt generator with 815 wave-connected armature conductors and running at 650 r.p.m…
A:
Q: ----- In d.c. generators armature reaction is produced by armature current O none of the mentioned O…
A:
Q: Two shunt generations each having an armature resistance of 0.05 ohm and field resistance 40 ohms…
A:
Q: fill in the blank : In a shunt generator, brushes carry current a. armature b.…
A:
Q: 20. Two shunt generations each having an armature resistance of 0.05 ohm and field resistance 40…
A: It is given that: Ra=0.05 ΩRf=40 ΩIT=2000 AEa2=260 VEa1=250 V
Q: A shunt would dc machine has an armature resistance of 0-12 and a field resistance of 100 . The…
A: A DC machine is classified in two types. DC motors DC generators On the basis of construction DC…
Q: 15 An 8-pole wave wound d.c. generator has 1000 armature conductors. The armature current is 100A.…
A: Formula for cross magnetizing ampere turns in dc generator is 180-2∅180×Z×Ia2×A×P where ∅ is the…
Q: A 200 V, d.c shunt machine has an armature resistance of 0.5 2 and field resistance of 200 2. The…
A: Drawing the circuit diagram which represents the generating and the motoring operations:
Q: - A Dc shunt generator produces 445 A at 250 V, the resistance of shunt field circuit and armature…
A: Given data: Terminal Voltage, Vt = 250 V Shunt field resistance Rsh = 50 Ω Armature resistance Ra =…
Q: In a DC generator, the effect of armature reaction on the main field is to * reverse it O distort it…
A: - When current flows through the armature conductors, the flux is set up in the air gap. - The flux…
Q: which is the best method for reducing armature reaction O a. Using High reluctance pole time O b.…
A: In this question, Choose the correct option Which is the best method for reducing armature…
Q: By using MMF method find the approximate voltage regulation of the machine provided that the rated…
A: According to question we have to find the voltage regulation.
Q: The DC shunt generator with the terminal voltage 300 V, armature drop 8 V and the total brush drop 2…
A:
Q: Two generators operating in parallel supply a total load current of 150 A.The terminal potential…
A: A generator is the conversion of mechanical energy into electrical energy, which is used to generate…
Q: Elecrical Machines H.W 3 QI A de metr with V6z150 valt and no-load speed= lo vnd/sec andarmiture…
A: Motor: The motor is used to convert the electrical power to mechanical energy. It operates on the…
Q: 9. In d.c. generators, armature reaction is produced actually by (a) its field current (b) armature…
A: Field current in DC generator is very small ony 2 to 5% of full load armature current.
Q: Due to an armature reaction in DC mach the generated volt is O Decrease O Increase or decrease O…
A: In this we will write about generated voltage in dc machine due to armature reaction...
Q: 2. A 15 kW shunt machine having an Armature circuit Resistance of 0.35 and a filed resistance of…
A:
Q: IL IA RA RF If EA Iout + T LF Field Armature Using the following values: VT = 190 V, IL = 110 A, RA…
A: Given that N= 1250 rpm P= 19Hp Vt = 190v Rf= 80 ohm RA = 0.1 ohm.
Q: A shunt generator delivers 195 A at a terminal p.d. of 250 V. The armature resistançe and shunt…
A: Generated emf = terminal voltage +voltage drop in armature resistance. Armature current = load…
Q: 9. A shunt generator on test is separately excited and driven at 1000 rev/min. The open-circuit test…
A: The load characteristic for any generator is plotted between terminal voltage and field current, for…
Q: Shunt motor 250 V Ra-0,03 ohm, Rf-50 ohm and Il-120 A, The armature current Select one Oa 120A Ob.…
A: The load current of the dc shunt motor is given by the expression as shown below:…
Q: from the supply. The armature resistar The motor develops an output power a speed (i) torque…
A: Since you have asked a multiple question we will solve the first question for you, If you want any…
Q: 4. A DC motor is driven by an input terminal voltage of V4 440 V at 60 Hz in the equivalent circuit…
A:
Q: B/A shunt generator delivers 450 A at 230 v and the resistance of the shunt field and armature are…
A:
Q: Il load current of 25A. The field curre a the armature. Find the speed (i) at the
A: A motor is an electrical device to convert an electrical energy into mechanical energy. The Dc shunt…
Q: Two-shunt generators each with an armature resistance of 0.0152 and field resistance of 25N run in…
A: we need to determine bus bar voltage and KW output of each generator.
Q: If field current is not supplied internally by the armature, then the machine is said to be…
A:
Q: : 250 V 5 kW d.c. shunt generator runs at 50% load. The shunt field resistance and armature…
A:
Q: The output of a shunt generator is 66A at 100V. Armature resistance is 0.04Ω and the field…
A:
Q: DC compound machine; Explain the starting of the engine.
A: Compound excited DC motor :- If in DC machine both winding series - shunt are present then we call…
Q: A 200 kW, 400 V, six pole, separátel pm, an armature winding resistance of 0.05 2, a field w and a…
A:
Q: The e.m.f. induced in the armature of a shunt generator is 600V. The armature resistance is 0.1 ohm.…
A:
Q: the output of a shunt generator is 25 kw at the terminal voltage of 200V. the armature resistance is…
A: Given: The output of shunt generator (PL) = 25 kW Terminal voltage = 200 V…
Q: H.W 1/ A four poles d.c Motor with a progressive simple diagram and note the: a) The direction of…
A: Given 12 slots , 4 pole In simplex type winding coil terminating end is connected to commutator…
Q: Spinning Magnetic Disk Motor and Head Transfer Function 10 G(s)- QRead/Wnite Head s(tau"s+1)…
A: The given diagram is shown below: It is given that: Transfer function of motor=G(s)=10ssτ+1where,…
Q: (a) List out the applications of i) DC shunt motor ii)DC series motor iii) DC cumulative compound…
A: Various application of different motors are: i) DC shunt motor For driving constant speed line…
Step by step
Solved in 3 steps with 3 images
- Two separately-excited d.c. generators are connected in parallel supply a load of 200 A. The machines have armature circuit resistances of 0.05 Ω and 0.1 Ω and induced e.m.fs. 425 V and 440 V respectively. Determine the terminal voltage, current and power output of each machine. The effect of armature reaction is to be neglected.Calculate the full load voltage drop due to armature reaction In an experiment load test DC Shunt generator. Obtain the internal curve using the curves above.An 8 pole, lap-wound armature has 1200 conductors and a flux pole is 0.06wb. Determine the e.m.f generated when the dc machine running at 600 rev/min.
- A 200V shunt generators has an armature resistance of 0.020 and a shunt resistance of 500. At rated load, the driving engine develops 62.25Hp. If the SPL amount to 1600W, determine the load power (in watts).ELECTRICAL MACHINES 2 Describe the difference in construction operation of dc shunt, series, and compound motor. Compare the speed characteristics of dc shunt, series, and compound motor.A shunt would dc machine has an armature resistance of 0-12and a field resistance of 100. The machines rated terminal voltage is 250 V. Find the ratio of speeds as a generator and motor if line current is 50 A in each case.
- 12. A d.c. shunt motor runs at 900 r.p.m. from a 400 V supply when taking an armature current of 25 A.Calculate the speed at which it will run from a 230 V supply when taking an armature current of 15 A. Theresistance of the armature circuit is 0.8 Ω. Assume the flux per pole at 230 V to have decreased to 75% of its value at 400 V.A shunt motor running on no-load takes 5 A at 200 V. The resistance of the fieldcircuit is 150 ohms and of the armature 0.1 ohm. Determine the output andefficiency of motor when the input current is 120 A at 200 V.The DC shunt generator with the terminal voltage 300 V, armature drop 9 V and the total brush drop 4 V, then the value of generated emf is
- A shunt generator is connected to a load that draws 30 KW on full-load. The armature resistance is 0.1 ohm. If the power generated in the armature is 33.50 KW, and the shunt field resistance is 80 ohms, determine the: A. Variable copper loss B. Constant loss C. Maximum efficiency.A DC chopper is used in regenerative braking mode of a dc series motor. The dc supply is 600 V, the duty cycle is 70%. The average value of armature current is 100 A. It is continuous and ripple free. What is the value of power feedback to the supply ?The output of a shunt generator is 66A at 100V. Armature resistance is 0.04Ω and the field resistance is 25Ω. if the total efficiency at this load is 88%, determine a) Total copper loss b)SPL c) Bhp