Terminal voltage of shunt G1 generator in idle operation is 500 V. G1. If the terminal voltage of the generator gives a load current of 600 A, it will be 470 V. falls. The idle operating voltage of the shunt G2 generator is 505 V. G2 generator terminal voltage drops to 470 V in case of 400 A load current. These two generators 400 They are connected in parallel to feed the kW load. Voltage-power of generators its characteristics are linear. According to this. a- Draw the connection diagram given in the question. b-) Obtain the network voltage and the powers of the generators. c-)Calculate the current given by each generator to the load.

Terminal voltage of shunt G1 generator in idle operation is 500 V. G1. If the terminal voltage of the generator gives a load current of 600 A, it will be 470 V. falls. The idle operating voltage of the shunt G2 generator is 505 V. G2 generator terminal voltage drops to 470 V in case of 400 A load current. These two generators 400 They are connected in parallel to feed the kW load. Voltage-power of generators its characteristics are linear. According to this. a- Draw the connection diagram given in the question. b-) Obtain the network voltage and the powers of the generators. c-)Calculate the current given by each generator to the load.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter12: Power System Controls

Section: Chapter Questions

Problem 12.6P

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Terminal voltage of shunt G1 generator in idle operation is 500 V. The terminal voltage of the G1 generator drops to 470 V if it delivers a load current of 600 A. The idle operating voltage of the shunt G2 generator is 505 V. G2 generator terminal voltage drops to 470 V in case of 400 A load current. These two generators are connected in parallel to feed a load of 400 kW. Voltage-power characteristics of generators are linear. According to this; a. Draw the connection diagram given in the question. b. Obtain the network voltage and the powers of the generators. c. Calculate the current given by each generator to the load.
Suppose two generators supplying a load. Generator-1 has a no-load frequency of 61.5 Hz and a slopesp1 of 1 MW/Hz. Generator-2 has a no-load frequency of 62 Hz and a slope sp2 of 1MW/Hz. The twogenerators are supplying a real load totaling 2.5 MW at 0.8 PF lagging. Draw the resulting systempower-frequency or house-diagrams. Determine (a) at what frequency is the system operating, andhow much power is supplied by each of the generators? (b) if an additional 0.75-MW load wereattached to this power system. What would the new system frequency be, and how much powerwould the each generator supply now? (c) with the system in the configuration described in part (b),what will the system frequency and generators power be if the governor set points on generator-1 areincreased by 0.5 Hz?
1. Two shunt generators operating in parallel delivering a total load current of 240 A. One of the generators is rated 50 KW and the other 100 KW. The voltage rating of both machines is 500 V and have regulations of 4% and 6% respectively. Assuming linear characteristics, determine (I) the current delivered by each machine (ii) terminal voltage.
50 KW, 240 V enduvi resistance of a generator with foreign excitation is 0.02 ohms. Generatorproduces rated voltage at rated load. Endüvi voltage and endüvi current at rated loadcalculate? If the output voltage is kept constant at 240V and the output power is reduced to 45 KWfind the enduvi tension necessary for this?
The terminal voltage of shunt G1 generator in idle state is 500 V. G1 if the terminal voltage of the generator gives a load current of 600 A to 470 V is falling. The idle operating voltage of the shunt G2 generator is 505 V. The terminal voltage of the G2 generator drops to 470 V in the case of a load current of 400 A. These two generators are connected in parallel to supply a 400 KW load. Voltage-power generatorsits characteristics are linear. Accordingly;a. Draw the connection diagram given in the question.b. Obtain mains voltage and generator power.c. Calculate the current given by each generator to the load?
A 50-kW generator has a full-load efficiency of 90.5 percent. Determine the total losses. Ans.: 5,250 watts explain step by step, circuit diagram, principles etc and also write it clearly.
Two 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.
2.2 A three-phase synchronous generator has a reactance of 1.5 p.. and negligible resistance. It supplies a rated current of 1.0 p.. at 1.0 p.u. terminal voltage to a lagging load of 0.9 power factor. Determine the rated excitation voltage in p.u. and the internal load angle. Construct the performance chart of the generator in 2.1 (above) assuming its rating is 450 MVA.
Two shunt generators operating in parallel delivering a total load current of 240 A. One of the generators is rated 50 KW and the other 100 KW. The voltage rating of both machines is 500 V and have regulations of 4% and 6% respectively. Assuming linear characteristics, determine (i)the current delivered by each machine (ii) terminal voltage.
Example 2.23 (H.W):- Two generators 1 & 2 are connected in parallel across two bus-bars to supply an electric load. G1 has a no-load voltage of 240 V with an armature resistance of 0.12. The other generator, G2, has a no-load voltage of 245 V and an armature resistance of 0.16 2. If the total load current is 300 A, determine, a) The terminal voltage (bus-bar voltage). b) The current supplied by each generator c) Total load power. d) The terminal voltage, if G2 is switched OFF due to maintenance.
Problem details: A 15 kW, 280V, 1200 rpm washing machine needs to be fed by a generator in your home. You have a friend in a generator manufacturer company. He gave you different options and as you’re studying in EE department, he asked you to choose the best one from those! The generator details are as shown Type of Generator: Series Armature resistance (Ω) = 0.8 Field resistance (Ω) = - Series Resistance (Ω) = 2.2 Hysteresis loss (kW) = 1.1 Eddy current loss (kW) = 1.7 Rotational loss (kW) = 1.2 Calculate the following things for each of the generator types: a) The generated voltage b) The field circuit voltage c) The developed torque d) The efficiency Also neatly draw the circuit diagram for all of them.
15. A certain generator has an open-circuit voltage of 12 V and an internalresistance of 40Ω . Calculate: (a) the load resistance for maximum powertransfer; (b) the corresponding values of the terminal voltage and of thepower supplied to the load.If the load resistance were increased to twice the value for maximum powertransfer, what would be the power absorbed by the load?