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In order to connect a synchronous generator to an infinite bus, essentially five parameters should match with the infinite bus are :
(a) Terminal voltage
(b) Frequency
(c)No of Phases
(d)Phase sequence
(e) Phase angle
Hence the correct option is a.
If condition a is not satisfied then large circulating current will flow between the systems and may trip the circuit breaker.
Frequency disturbance can create oscillation in prime movers.
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Question 3 Not yet answered Marked out of 2.00 P Flag question A seismic instrument has a natural frequency of 20 Hz and a damping ratio of 0.65. The maximum input frequency for a vibration is such that the amplitude error in the indicated displacement is less than 5%. Calculate and select the correct value of phase shift. Select one: О Ф-630 Ф-530 О Ф -63° O p- 6.3°
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Question 11 Not yet answered Marked out of 1.00 p Flag question Two isotropic sources, both fed with the same amplitude and a 0 degrees phase difference, what is the minimum spacing between the elements required in order to form at least one null in the array factor: Select one: a. ob.312 O C.NA d. N2 Next page on Question 8 Not yet answered Marked out of 1. 00 p Flag question Three 5-element arrays of isotropic sources and uniform...
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Question 10 Not yet answered Marked out of 2.00 Flag question Three resistors are connected across an ideal 4.0-V DC battery as shown in the figure below. What is the power dissipated in the 6 resistor? 2.00 Www 6.00 120 www Select one: O a. 16 W O b.0.67 W O O c.2.67 W d.4W Next page
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ut yet answered Marked out of 1.00 P Flag question Give the exact values for the following quantities. (6) cos(257) a) sin(257) Select one: o bilo za one do Eco- Next page Previous page
Question 3 Not yet answered Marked out of 2.00 P Flag question A seismic instrument has a natural frequency of 20 Hz and a damping ratio of 0.65. The maximum input frequency for a vibration is such that the amplitude error in the indicated displacement is less than 5%. Calculate and select the correct value of phase shift. Select one: О Ф-630 Ф-530 О Ф -63° O p- 6.3°
Question 3 Not yet answered Marked out of 2.00 P Flag...
Question 11 Not yet answered Marked out of 1.00 p Flag question Two isotropic sources, both fed with the same amplitude and a 0 degrees phase difference, what is the minimum spacing between the elements required in order to form at least one null in the array factor: Select one: a. ob.312 O C.NA d. N2 Next page on Question 8 Not yet answered Marked out of 1. 00 p Flag question Three 5-element arrays of isotropic sources and uniform...
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Marked out of 2.00 P Flag question Not yet answered Bile Select one: a. has no effect on digestion b. helps in the digestion of carbohydrates c. helps in the digestion of proteins d. helps in the digestion of both proteins and carbohydrates e. helps in the digestion of fats
Question 8 Not yet answered Marked out of 2.00 P Flag question Assume that the vectors ū = 4i + aj +2k and W = ai-j+3k are orthogonal. Then the value of a is Select one: 2 3 0 -1 -2 None
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15) > Test 1 Question 24 Not yet answered Marked out of 1.00 P Flag question Compliance orientation is more effective at creating ethical reasoning, Select one: True O False 1 Previous page B Next page AGAAN [2-2019/2020) > 18 July 2020 (Week 15) > Test 1 Which of the following is not a measure of ethical climate? Question 25 Not yet answered Marked out of 1.00 P Flag question Select one: 0 a. Collective judgment 0 b. Collective character...
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Question 10 Not yet answered Marked out of 2.00 Flag question Three resistors are connected across an ideal 4.0-V DC battery as shown in the figure below. What is the power dissipated in the 6 resistor? 2.00 Www 6.00 120 www Select one: O a. 16 W O b.0.67 W O O c.2.67 W d.4W Next page
ut yet answered Marked out of 1.00 P Flag question Give the exact values for the following quantities. (6) cos(257) a) sin(257) Select one: o bilo za one do Eco- Next page Previous page
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