50 performance analysis of pid controller for three- phase
... finding the difference between the reference value and the actual output. The error signal is then sent to the PID controller to compute integral and the derivative of the error signal. The control signal, u of the plant is the summation of the proportional gain, Kp multiplying with the magnitude of ...
... finding the difference between the reference value and the actual output. The error signal is then sent to the PID controller to compute integral and the derivative of the error signal. The control signal, u of the plant is the summation of the proportional gain, Kp multiplying with the magnitude of ...
eet 3086 power transmission and distribution
... high enough to prevent undesired relay tripping on the initial peak of the motor starting current, which can be many times the normal operating current of the motor. On the other hand, it must be low enough to provide effective protection against phase faults occurring at the motor terminals. In the ...
... high enough to prevent undesired relay tripping on the initial peak of the motor starting current, which can be many times the normal operating current of the motor. On the other hand, it must be low enough to provide effective protection against phase faults occurring at the motor terminals. In the ...
25471_energy_conversion_15
... INDUCTION MOTOR • Since an induction motor does not have an independent field circuit, its model will not contain an internal voltage source such as internal generated voltage EA in a syn. Machine • The equivalent circuit of induction motor can be derived from a knowledge of “transformers” and from ...
... INDUCTION MOTOR • Since an induction motor does not have an independent field circuit, its model will not contain an internal voltage source such as internal generated voltage EA in a syn. Machine • The equivalent circuit of induction motor can be derived from a knowledge of “transformers” and from ...
25471_energy_conversion_19
... 3-More steel in stator, greater amount of heat transfer 4- using special high grade steel with low hysteresis loss in stator 5- steel made of especially thin guage & high resistivity toreduce eddy current loss 6-rotor carefully machined to produce uniform air gap, reducing stray load losses ...
... 3-More steel in stator, greater amount of heat transfer 4- using special high grade steel with low hysteresis loss in stator 5- steel made of especially thin guage & high resistivity toreduce eddy current loss 6-rotor carefully machined to produce uniform air gap, reducing stray load losses ...
MV6404
... Induction type energy meters- megger (Basic construction & principles of operation only)– Single phase and three phase wattmeter for power measurement – Measurement of energy, speed, frequency and phase difference – Measurement of resistance, inductance and capacitance by Bridge method – Magnetic me ...
... Induction type energy meters- megger (Basic construction & principles of operation only)– Single phase and three phase wattmeter for power measurement – Measurement of energy, speed, frequency and phase difference – Measurement of resistance, inductance and capacitance by Bridge method – Magnetic me ...
Induction cooking
Induction cooking heats a cooking vessel by magnetic induction, instead of by thermal conduction from a flame, or an electrical heating element. Because inductive heating directly heats the vessel, very rapid increases in temperature can be achieved.In an induction cooker, a coil of copper wire is placed under the cooking pot and an alternating electric current is passed through it. The resulting oscillating magnetic field induces a magnetic flux which repeatedly magnetises the pot, treating it like a lossy magnetic core of a transformer. This produces large eddy currents in the pot, which because of the resistance of the pot, heats it.For nearly all models of induction cooktops, a cooking vessel must be made of, or contain, a ferromagnetic metal such as cast iron or some stainless steels. However, copper, glass, non magnetic stainless steels, and aluminum vessels can be placed on a ferromagnetic interface disk which functions as a conventional hotplate.