Synchro transmitter pdf

The stator is slotted for housing the three phase windings. The rotor of the synchros is a dumbbell in shape, and a concentric coil is wound on it. It uses a salient pole type of construction. Control transformer: It is used in conjunction with a synchro transmitter to act as error sensor of mechanical components.

It has two parts as stator which is stationary having higher impedance and the rotor is cylindrically shaped so that the air gap flux is uniformly distributed around the rotor. This is essential to a control transformer since its rotor terminals are usually connected to an amplifier. The cylindrical shape of the rotor of the synchro control transformer helps to keep the change of impedance in the rotor coil circuit with the change in angular position.

Get Started for Free Download App. An 8-pole, 3-phase induction motor operates from a supply whose frequency is 50 Hz. Calculate the speed at which the magnetic field of the stator is rotating. In a synchronous motor, the value of coupling angle depends on:.

In which of the following tests, which may be used to measure the synchronous impedance, should the reading be taken in a short time to avoid armature overheating? If the alternator is over-excited and it delivers reactive power to the infinite bus, then under this condition:. When a synchronous motor is over excited, the drawn power factor current will be:. We both have highly-reliable and high-accuracy Synchro. The latter is used for angle detecting sensor of Nobeyama Radio Observatory in The actual achievement of angle accuracy is 2.

Synchro has 3-phases output. However, 2 phases structure of resolver is used for angle detecting sensor, like Synchro. The application is Hybrid Car and so on. The principles of Synchro are similar to those of an electrical transformer.

A shaft of the receiver rotates in unison with the rotation of a shaft of the transmitter. Using the above characteristics, Synchro is used for transmitting mechanical angle variation of transmitter over a long distance. See fig. Share Email. Top clipped slide.

Download Now Download Download to read offline. Lecture 7 Synchros - Basics and Construction Aug. Synchros - Basics and Construction. Manipal Institute of Technology Follow. Lecture 12 stepper motors - types and working. Lecture 13 basics of stepper motor. Lecture 11 zeroing synchros. Lecture 28 pneumatic control devices. Lecture 27 valve shapes, selection guide. Lecture 26 control valves. Lecture 23 control valves. Related Books Free with a 30 day trial from Scribd.

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