Print this article - Elektronika ir Elektrotechnika
... voltage from the machine, an exciting or magnetizing current is needed. This excitement is obtained by the capacitors. The voltage and frequency obtained from the output of the IG differ depending on the AC capacitor value, the state of the load, the rotor speed, and the parameters of the IG [5]–[8] ...
... voltage from the machine, an exciting or magnetizing current is needed. This excitement is obtained by the capacitors. The voltage and frequency obtained from the output of the IG differ depending on the AC capacitor value, the state of the load, the rotor speed, and the parameters of the IG [5]–[8] ...
magnetic_induction
... By making several loops and creating a coil of wire, a focused magnetic field can be created inside of the coil (see Figure 9). This is how electromagnets are created. Coils of wires are also referred to as inductors. ...
... By making several loops and creating a coil of wire, a focused magnetic field can be created inside of the coil (see Figure 9). This is how electromagnets are created. Coils of wires are also referred to as inductors. ...
University of North Carolina-Charlotte Department of Electrical and Computer Engineering
... 2) Calculate the value of the power angle δ and the excitation voltage Eaf when the machine is delivering the maximum apparent power at rated power factor. Make sure to use Xd in Ohms, not in pu. Remember that the machine has a line-to-line voltage of 10kV RMS. You’ll have to compute the line-to-neu ...
... 2) Calculate the value of the power angle δ and the excitation voltage Eaf when the machine is delivering the maximum apparent power at rated power factor. Make sure to use Xd in Ohms, not in pu. Remember that the machine has a line-to-line voltage of 10kV RMS. You’ll have to compute the line-to-neu ...
Modification of Commercial Fault Calculation Programs for Wind
... Is = 1.1 pu Figure ???? Type 4 WTGto Short Circuit • Current is usually limited the order of 1.1-1.5 per unit Representation of rated current and only provides balanced positive current source limited to 1.1 pu postive sequenceConstant symmetrical current regardless of the type of sequence current f ...
... Is = 1.1 pu Figure ???? Type 4 WTGto Short Circuit • Current is usually limited the order of 1.1-1.5 per unit Representation of rated current and only provides balanced positive current source limited to 1.1 pu postive sequenceConstant symmetrical current regardless of the type of sequence current f ...
NOVATORQUE® EC PERMANENT MAGNET MOTOR
... They deliver a whole new class of electric motors that provide the performance of a permanent magnet motor at a cost more similar to premium induction motors. ...
... They deliver a whole new class of electric motors that provide the performance of a permanent magnet motor at a cost more similar to premium induction motors. ...
3.5 Ac speed motor controller
... This auto bathroom fan control circuit design is a lamp and fan motor control with a delayed switch off. This automatic fan control is commonly used in toilet and bathrooms. When switch S1 is closed, the fan motor and the lamp turns on. When switch S1 is opened (switched off), the lamp goes out but ...
... This auto bathroom fan control circuit design is a lamp and fan motor control with a delayed switch off. This automatic fan control is commonly used in toilet and bathrooms. When switch S1 is closed, the fan motor and the lamp turns on. When switch S1 is opened (switched off), the lamp goes out but ...
PFC/JA-90-42 Innovative Design Option for Internal Coils* L. Bromberg
... requirements of superconducting coils at the expense of increased recirculating power fraction. Either copper or aluminum could be used for the coils. Other conductors could and should be considered (including a mixture of Be spheres and liquid lithium). For the scope of this paper we have assumed t ...
... requirements of superconducting coils at the expense of increased recirculating power fraction. Either copper or aluminum could be used for the coils. Other conductors could and should be considered (including a mixture of Be spheres and liquid lithium). For the scope of this paper we have assumed t ...
PDF
... Electronic-hybrid type circuit breakers deliver superior performance through multi-adjustable functions for both overload and short-circuit protection resulting in easily coordinated protection of electric circuits, and a pre-alarm function that enables predictive and preventive maintenance. However ...
... Electronic-hybrid type circuit breakers deliver superior performance through multi-adjustable functions for both overload and short-circuit protection resulting in easily coordinated protection of electric circuits, and a pre-alarm function that enables predictive and preventive maintenance. However ...
The Magnetic Field
... Magnets Push and Pull Currents • Current-carrying wires produce a magnetic field. • This magnetic field behaves the same way as the magnetic field that a magnet ...
... Magnets Push and Pull Currents • Current-carrying wires produce a magnetic field. • This magnetic field behaves the same way as the magnetic field that a magnet ...
SPEED CONTROL of SHUNT DC MOTOR
... • In previous figure (b) terminal characteristic of motor over full range from no-load to stall shown • In figure can see at very slow speeds, an increase in field resistance will actually decrease speed of motor • This effect occurs because at very low speeds, the increase in armature current cause ...
... • In previous figure (b) terminal characteristic of motor over full range from no-load to stall shown • In figure can see at very slow speeds, an increase in field resistance will actually decrease speed of motor • This effect occurs because at very low speeds, the increase in armature current cause ...