stator


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Related to stator: stator coil

stator:

see generatorgenerator,
in electricity, machine used to change mechanical energy into electrical energy. It operates on the principle of electromagnetic induction, discovered (1831) by Michael Faraday.
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; motor, electricmotor, electric,
machine that converts electrical energy into mechanical energy. When an electric current is passed through a wire loop that is in a magnetic field, the loop will rotate and the rotating motion is transmitted to a shaft, providing useful mechanical work.
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.

Stator

 

(1) In reaction turbines, a grating installed ahead of the runner of a hydraulic turbine; it usually consists of rotatable profile blades. The rotatable blades make possible adjustment of the flow of water through the turbine. Such adjustments are necessary to produce an optimum direction of the water stream at the vanes of the runner and thus to improve the efficiency of the turbine under abnormal operating conditions.

(2) In vane pumps, the stator consists of stationary vanes and is located behind the impeller (with respect to the direction of flow) in such a way as to provide the most favorable (axial) outflow of the fluid.


Stator

 

in electric machinery, the stationary part of a machine that serves as both a magnetic circuit and a supporting member.

A stator consists of a core and a frame. The core is made up of sheets of electrical steel; the sheets, which are 0.35–0.5 mm thick and insulated with varnish, are formed into stacks and fastened in the cast or welded frame. Stator windings fit into slots made in the core. To avoid substantial eddy currents and associated losses, the conductor of the stator winding is made up of several strands electrically in parallel. In high-power machines, these strands are braided (transposed). In linear motors, the core of the stator is unrolled into a line.

REFERENCE

Kostenko, M. P., and L. M. Piotrovskii. Elektricheskie mashiny, 3rd ed., parts 1–2. Leningrad, 1972–73.

stator

[′stād·ər]
(electricity)
The portion of a rotating machine that contains the stationary parts of the magnetic circuit and their associated windings.
(mechanical engineering)
A stationary machine part in or about which a rotor turns.

stator

i. Stationary diffuser vanes in an axial-flow compressor, which convert the kinetic energy into pressure energy. See stator blade.
ii. The stationary part of an electrical machine such as an alternator or a motor.
iii. The discs in multiple-disc brakes that are keyed to the axle and do not rotate. See segmentedrotor brake.
References in periodicals archive ?
Thus, the optimization problem is reduced to finding the extremum of the objective function--the maximum of the effective value of the EMF of the stator winding when the specified coefficients are varied, taking into account the constraints on their values, which arise from the possibilities of constructive execution of the generator.
The parameters of the 0.5HP induction motor equivalent circuit of two different stator slot size are shown in Fig.
Fluid flow in stator cavity and the gap between the stator and rotor were simulated using the commercial CFD software Fluent, the variation law of the clearance against pump efficiency was studied, and the influence of medium viscosity and rotational speed were investigated.
Figure 3a is showing magnet flux flow of design [1], in this design stator base current is shown in Figure 4a which is 90degE earlier than base flux flow of rotor in electrical angle.
The IM equations, in a stator reference frame, are defined by: where Rs and Rr are the stator and rotor resistances.
Figure 2 presents a schematic picture of the contact mode, showing the contact between the rotor and stator. In the illustration, the forces represented by [f.sub.n] and [f.sub.t] are, respectively, the normal and tangential forces applied by the rotor on the stator in the case of a clockwise rotation.
In conclusion, the natural frequency of FVPMLVI can be decreased effectively by adopting the dual-stator scheme and special stator magnet array, and the structural parameters of magnets should be carefully designed because the force characteristics of FVPMLVI depend on the combination of force characteristics of several magnet arrays.
In order to assist the reader in understanding the proposed novel method of broken bar fault detection, a brief explanation of the presence of broken bar sideband components in the stator current spectra is presented.
ECMs use permanent magnet rotors and inverterdriven power supply to the stator windings to start the motor and control its speed.
Then replaces [MATHEMATICAL NOT REPRODUCIBLE IN ASCII], and expresses real and imaginary components separately, we will get Voltage Equation's scalarization form of dynamo on stator x - y coordinate system:
The effect of shrink fitting, punching, and anisotropy of nonoriented core on iron loss of actual motor is examined using measured properties of stator core in [14].