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Q. Show Advantages of Oscillators?
Although oscillations can be produced by mechanical devices (e.g. alternators), but electronic oscillators have the following advantages:
(i) An oscillator is a non-rotating device. Consequently, there is little wear and tear and hence longer life.
(ii) Due to the absence of moving parts, the operation of an oscillator is quite silent.
(iii) An oscillator can produce waves from small(20 Hz) to extremely high frequencies(>100 MHz).
(iv) The frequency of oscillators can be easily changed when desired.
(v) It has good frequency stability i. e. frequency once set remains constant for a considerable period of time.
(vi) It has very high efficiency.
A three-phase, wye-connected, 2300-V, 60-Hz, round-rotor synchronous motor has a syn- chronous reactance of 2 per phase and negligible armature resistance. (a) If the motor tak
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