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What do you mean by direct axis?
The direct axis refers to the axis in a synchronous machine where the magnetic field is aligned with the rotor’s magnetic field. In terms of a rotating magnetic field, it is the direction in which the rotor produces maximum torque. In the context of electrical engineering, it is crucial for analyzing and controlling synchronous generators and motors, particularly in the dq (direct-quadrature) transformation used for simplifying the analysis of AC machines. The direct axis contrasts with the quadrature axis, which is perpendicular to it.
How much gap in between stator inner diameter and rotor outer diameter?
.050
Synchro motor and its function?
A Synchro Motor is a Elecrical motor consition out of a single-phase Inner/Rotor windings, and a Three-phase Outer/Stator windings. The Outer/Stator windings are connected Electricly in a Star formation. ... ie: The inner ends of each the three windings are connected to one another. And the outher ends will then be connected to another Synchro Motors outer ends. The Inner/Rotor windings are connected to a single-phase AC power supply. The Rotor Windings in turn transfer energy over to the Outer/Stator windings. The Stator Windings are 120 degrees appart. And therefore depending on the Rotation of the Inner/Rotor Windings the Outer/Stator Winding get a different magnatude of magnetic flux, transferring a different amout of current flow to each of the three Outer/Sator windings. That bring us to the use of a Synchro Motor: ... A Syncrhro Motor works in pairs of 2 or 3, and are used to transfer rotational oriantation from one Synchro motor to another. Depending on how the Synchro Motors are connected to one another you can mirror the rotation from the first motor to the second. For standard Synchronigation you would connect The 3 Outer/Stator windings as such (1-1) (2-2) & (3-3). To mirror the Rotation you could connect (1-2) (2-1) & (3-3). Remember I said you could have 3 Synchro motors... The Third is wired differently inside... it has 3 Inner/Rotor windings & 3 Outer/Stator windings. The Rotor & Stator winding are connected in a star formation. The third Synchromotor bring about a difference in rotation. You could add or subtract rotational oreantions. A = Synchro Motor 1 ...B = Synchro Motor 2 (with 3 Stator & 3 Rotor windings) ...C = Synchro Motor 3 A+B=C Or A-B=C Synchro motors are used in ships, for opening & clossing valves from the bridge to for instance the Engine room. A more advanced system of the synchro technology integrates with a Servo Motor, that in turn can controls the rudder of the ship. Other uses are in Analoge computers & Electronic Weapon Guidence Systems.
What is ac generator?
An AC or alternating current generator is a piece of machinery that produces AC electricity. Most commonly this machine is powered by steam.in simple terms it consists of a series of blades that are turned by steam.a magnetic field is excited on the rotor which then cuts through lines of magnetism that are present on the stator by the power grid. As more power is applied to the rotor, the turbine must spin harder,not faster, to push more power onto the grid. RPM of rotor is determined by the number of poles in the stator. Most commonly a turbine will spin at 3600rpm.... or, 60 times per second giving us the USA electrical grid a 60Hz frequency. This is scratching the paint on AC generation but its a start.
What variables in a micro hydro system could you change to get more electricity from it?
The size of the stator should be expanded by using higher gage and more winding, the size of the rotor should also be expanded to bigger size. The most important is the speed of the water flow which will gear up the rotor faster.
