A 13.8 kV, 50-MVA, 0.9 p.f., 60 Hz, four pole, Y-connected synchronous generator has a synchronous reactance of 2.5 ohms, and an armature resistance of 0.2 ohm. At 60 Hz, its friction and windage losses are 1 MW, and its core losses are 1.5 MW. The field circuit has a dc voltage of 120 V, and the maximum field current is 5A. The current of the field circuit is adjustable over the range from 0 to 10 A. The OCC of this generator is shown in the figure.

Power System Analysis and Design (MindTap Course List)
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ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter3: Power Transformers
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Problem 3.33P: Consider the three single-phase two-winding transformers shown in Figure 3.37. The high-voltage...
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SYNCHRONOUS GENERATOR
A 13.8 kV, 50-MVA, 0.9 p.f., 60 Hz, four pole, Y-connected synchronous generator has a synchronous reactance of 2.5 ohms, and an armature resistance of 0.2 ohm. At 60 Hz, its friction and windage losses are 1 MW, and its core losses are 1.5 MW. The field circuit has a dc voltage of 120 V, and the maximum field current is 5A. The current of the field circuit is adjustable over the range from 0 to 10 A. The OCC of this generator is shown in the figure.
What will the terminal voltage of this generator be if it is connected to a delta-
connected with an impedance of 24 cis 25 deg ohms? *
Open-cireuit characteristie
20
18
16
14
12
10
3
4
5
6.
7
9
10
Field curent (A)
00
2.
2.
Open-circuit voltage (kV)
Transcribed Image Text:What will the terminal voltage of this generator be if it is connected to a delta- connected with an impedance of 24 cis 25 deg ohms? * Open-cireuit characteristie 20 18 16 14 12 10 3 4 5 6. 7 9 10 Field curent (A) 00 2. 2. Open-circuit voltage (kV)
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