230 induced omf tion of this p ower. In a short conpound generator, the terminal voltage is generator delivers l50 A. b) total power generated and V when Determine a) e) distribu- Given that the shunt field, series field, diverter and armature resistances are 92 2, 0.015 , 0.03 2 and 0.03 2 respectively.
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- Consider a three-phase generator rated 300MVA,23kV, supplying a system load of 240 MA and 0.9 power factor lagging at 230 kV through a 330MVA,23/230Y-kV step-up transformer with a leakage reactance of 0.11 per unit. (a) Neglecting the exciting current and choosing base values at the load of 100 MVL and 230 kV. Find the phasor currents IA,IB, and IC supplied to the load in per unit. (b) By choosing the load terminal voltage IA as reference, specify the proper base for the generator circuit and determine the generator voltage V as well as the phasor currents IA,IB, and IC, from the generator. (Note: Take into account the phase shift of the transformer.) (C) Find the generator terminal voltage in kV and the real power supplied by the generator in MW. (d) By omitting the transformer phase shift altogether, check to see whether you get the same magnitude of generator terminal voltage and real power delivered by the generator.For Problem 3.18, the motor operates at full load, at 0.8 power factor leading, and at a terminal voltage of 10.45 kV. Determine (a) the voltage at bus 1, which is the generator bus, and (b) the generator and motor internal EMFs.Problem 1. to. In the problem shown, calculate the Load node regulation. Assume the generator maintains its generation voltage in terminals
- A 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 regulationa single-phase, 10-kVA, 200-V, generator has an internal impedance Z, of 2 Q. Using the ratings of the generator as base values, determine the generated per-unit voltage that is required to produce full-load current under the short-circuit condition.In a long-shunt compound generator, the terminal voltage is 220 Vwhen generator delivers 110 A. Determine (a) induced emf and (b)total power generated. Given that shunt field, series field,diverter and armature resistances are 90 Ω, 0.025 Ω, 0.04 Ω and0.03 Ω respectively.
- A long shunt generator delivers 25kW at 220V. The shunt, series and armature resistances are 50ohms, 0.02ohms, and 0.05ohms respectively, calculate the generated emf.The magnitude of the no-load, line-neutral voltage induced on the ‘a’-phase stator windings of a synchronous 3 phase generator is |Ea | = 480 V. Presume the stator winding resistance is negligible, and that the synchronous reactance is Xs = 1.1 Ω. The full-load, per-phase current magnitude for the generator is 30 A at a power factor of 0.8 leading . For these conditions: a. What is the line-neutral ‘a’-phase terminal voltage, Vథ? b. What is the power angle (?)? c. What is the percent voltage regulation? d. What is the total 3 PHASE complex, real, and reactive power delivered to the load?A compound dc generator is supplying a load of 120A and 120V. The shunt field,series field and armature resistances are 32 ohms 0.07 ohms and 0.1 ohms respectively. Find the generated voltage in LONG SHUNT CONNECTION and SHORT SHUNT Connection NOTE: DRAW THE EQUIVALENT CIRCUIT DIAGRAM
- Problem: A short-shunt compound generator has armature, shunt field and series field resistances of 0.5 Ω, 156 Ω, and 0.465 Ω respectively. If it supplies a load of 9 kW at a terminal voltage of 241 V, calculate the generated emf in volt. *Four decimal placesTwo shunt generator operate to supply a common load of 300A. Generator A has a no load voltage of 240V and load voltage of 220V at load current of 200A. While generator B gives a no load voltage of 245V and 220V at 150A. Assume an external load characteristic of the generator to be linear, Calculate the power output of each generator.A three phase synchronous generator with negligible resistance and Xs=20 ohm has induced voltage as well as terminal voltage per phase equal to 230 V. for the load angle of 30o, power received by the bus is .........W.