parallel with a battery having a c resistance of (0 .1 ohm ). Find th generator when the total load cu (iii)zero ?
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- With increasing load current, the output voltage of a separately-excited DC generator falls, which is a property of its load characteristics (decreasing load resistance). As the load current grows, what is the most appropriate solution or action you can take to counteract this voltage drop and keep the output voltage at a consistent level? Note: Please explain in no more than 60 words.Q23) A shunt generator supplies a 20KW load at 200V through cables of resistance, R = 100mΩ. If the field winding resistance ,Rf=50Ω and the armature resistance, Ra=40mΩ, i) Estimate terminal voltage across the load. ii) Calculate the emf generated in the armature.a dc shunt generator supplies a load of 10kW at 250V calculate the induced emf,if the armature resistance is o.5ohm and the shunt field resistance is 100ohm
- 111/ The armature reaction of the DC generator reduces the generated EMF. Select one: True FalseA 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 =A shunt generator supplies a 20kW load at 200V through cables of resistance, R= 100mΩ. If the field winding resistance, Rf =50Ω and the armature resistance, Ra =40mΩ, determine (a) the terminal voltage, and (b) the e.m.f. generated in the armature
- Discuss about Generator modeling and derive the formula for the real and reactive power supplied by it ?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 toA 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 neglected
- In the load characteristics of a separately-excited DC generator, its output voltage decreases with increasing load current (decreasing load resistance). What possible fix or action can you take to offset this decrease in voltage and maintain the output voltage at a constant level as the load current increases?N K © M =] v : @& docs.google.com/forms/d/¢ 2 Add file Q 1/ B) What is the work of Commutator . * &2, Add file Q 2) The following information is given for a 300-kW, 600-V, long-shunt compound generator : Shunt field resistance = 75 Q, armature resistance including brush resistance = 0.03 Q, commutating field winding resistance = 0.011Q, series field resistance = 0.012 Q, diverter resistance = 0.036 Q. When the machine is delivering full load, calculate the voltage and power generated by the armature * 2 Add file Q 3) A four pole aenerator havina - >Suppose that, in designing an electrical generator, we need to produce a voltage of 120 V by moving a straight conductor through a uniform magnetic field of 0.5 T at a speed of 30 m/s. The conductor, its motion, and the field are mutually perpendicular. What is the required length of the conductor? It turns out that in generator design, a conductor of this length is impractical, and we must use N conductors of length 0.1 m. However, by connecting the conductors in series, we can obtain the required 120 V. What is the number N of conductors needed?