BO044402410
... importance of distributed energy resources such as wind turbines and microturbines, there is renewed attention to induction generators. The model described in this paper can also be used to model an induction generator. The only change, compared with motoring operation, is that an external mover rot ...
... importance of distributed energy resources such as wind turbines and microturbines, there is renewed attention to induction generators. The model described in this paper can also be used to model an induction generator. The only change, compared with motoring operation, is that an external mover rot ...
Lectures. Direct current machi
... poles and also the number of brushes. it is suitable for high current low voltage machines like welding plans. whereas in wave winding the number of parallel paths is always two and they may be two or more brush positions. it is suitable for high voltage low current machines like generators used for ...
... poles and also the number of brushes. it is suitable for high current low voltage machines like welding plans. whereas in wave winding the number of parallel paths is always two and they may be two or more brush positions. it is suitable for high voltage low current machines like generators used for ...
In the project “Car Parking System”
... In the project “Car Parking System” we have shown the concept of an automatic car parking system. As in the modern world everything is going automatic we have built a system which will automatically sense the entry and exit of cars through the gate and then display the number of cars in the parking ...
... In the project “Car Parking System” we have shown the concept of an automatic car parking system. As in the modern world everything is going automatic we have built a system which will automatically sense the entry and exit of cars through the gate and then display the number of cars in the parking ...
Tech Notes - Variable capacitors
... applied across the diode. Any diode exhibits this effect (including p/n junctions in transistors), but devices specifically sold as variable capacitance diodes are designed with a large junction area and a doping profile specifically designed to maximise capacitance. Their use is limited to low sign ...
... applied across the diode. Any diode exhibits this effect (including p/n junctions in transistors), but devices specifically sold as variable capacitance diodes are designed with a large junction area and a doping profile specifically designed to maximise capacitance. Their use is limited to low sign ...
EE28 SEIG GUI - Copy
... : Per-unit rotational speed E1, VT : Per-unit air gap and terminal voltages Pout : Output electrical power II.INTRODUCTION The squirrel-cage induction motor which can be performed as Self Excited Induction Generator (SEIG) is best suitable for standalone wind energy conversation system due to their ...
... : Per-unit rotational speed E1, VT : Per-unit air gap and terminal voltages Pout : Output electrical power II.INTRODUCTION The squirrel-cage induction motor which can be performed as Self Excited Induction Generator (SEIG) is best suitable for standalone wind energy conversation system due to their ...
Motor Mounted Components - Altra Literature Portal
... In lowering operation, the drive motor acts as a generator and its braking effect results in a steady downward motion (constant speed). If we ignore transmission losses, under full load the drive must brake the load with the rated motor torque. If a mechanical brake with a braking torque equal to th ...
... In lowering operation, the drive motor acts as a generator and its braking effect results in a steady downward motion (constant speed). If we ignore transmission losses, under full load the drive must brake the load with the rated motor torque. If a mechanical brake with a braking torque equal to th ...
AN3476, Washing Machine Three-Phase AC
... replacement of traditional drive systems with modern, electronically controlled, brushless drives. In the past, washing machine designs employed two widely used drive systems. The older designs use electromechanically controlled, two-speed, single-phase AC-induction motors. This kind of drive system ...
... replacement of traditional drive systems with modern, electronically controlled, brushless drives. In the past, washing machine designs employed two widely used drive systems. The older designs use electromechanically controlled, two-speed, single-phase AC-induction motors. This kind of drive system ...
Freescale Semiconductor Application Note
... replacement of traditional drive systems with modern, electronically controlled, brushless drives. In the past, washing machine designs employed two widely used drive systems. The older designs use electromechanically controlled, two-speed, single-phase AC-induction motors. This kind of drive system ...
... replacement of traditional drive systems with modern, electronically controlled, brushless drives. In the past, washing machine designs employed two widely used drive systems. The older designs use electromechanically controlled, two-speed, single-phase AC-induction motors. This kind of drive system ...
Sustainability Aspects of Energy Conversion in Modern High
... The utilization in railway electric traction of the induction motor with a squirrel-cage rotor became possible only in the conditions of supplying power with controlled variable frequency and r.m.s. ...
... The utilization in railway electric traction of the induction motor with a squirrel-cage rotor became possible only in the conditions of supplying power with controlled variable frequency and r.m.s. ...
Conference Paper - Department of Electrical Engineering and
... and to be able to transmit the data and the video feed that we will be collecting. In order to accomplish this goal, we will set up a telemetry system that will be able to send the data long distances to our mobile platform. After determining the goals we needed for the telemetry system we decided t ...
... and to be able to transmit the data and the video feed that we will be collecting. In order to accomplish this goal, we will set up a telemetry system that will be able to send the data long distances to our mobile platform. After determining the goals we needed for the telemetry system we decided t ...
3 - DSpace@MIT - Massachusetts Institute of Technology
... inertia. In other applications, motors must endure harsh environmental conditions such as extremely high temperatures, requiring the motor material and construction to be rugged. Currently in the motor industry, induction motors and permanent-magnet (PM) synchronous motors are the predominant motor ...
... inertia. In other applications, motors must endure harsh environmental conditions such as extremely high temperatures, requiring the motor material and construction to be rugged. Currently in the motor industry, induction motors and permanent-magnet (PM) synchronous motors are the predominant motor ...
www.sreevarsha.com Electrical Sample Questions Questions And Answers
... A 50 Hz, bar primary CT has a secondary with 500 turns. The secondary supplies 5 A current into a purely resistive burden of l W. The magnetizing ampere-turns is 200. The phase angle between the primary and secondary current is A) 4.6° ...
... A 50 Hz, bar primary CT has a secondary with 500 turns. The secondary supplies 5 A current into a purely resistive burden of l W. The magnetizing ampere-turns is 200. The phase angle between the primary and secondary current is A) 4.6° ...
Cast Coil Transformers
... The transformer core is manufactured with grain-oriented magnetic steel, with high magnetic permeability, low losses, and insulated on both sides by a thin layer of organic material (carlyte). The cutting and assembly is performed at 45° angles using the step lap method to reduce losses, excitation ...
... The transformer core is manufactured with grain-oriented magnetic steel, with high magnetic permeability, low losses, and insulated on both sides by a thin layer of organic material (carlyte). The cutting and assembly is performed at 45° angles using the step lap method to reduce losses, excitation ...
f. notes E283C8
... When the loop rotates through 180°, segment ab is under the north pole face instead of the south pole face. At that time, the direction of the voltage on the segment reverses, but its magnitude remains constant. The resulting voltage etot is shown below: ...
... When the loop rotates through 180°, segment ab is under the north pole face instead of the south pole face. At that time, the direction of the voltage on the segment reverses, but its magnitude remains constant. The resulting voltage etot is shown below: ...
Variable Frequency Drives - a Comparison of VSI versus
... f. An output filter has not been used in the past for any VSI drives. g. The motors for VSI drives are custom built with appropriate motor insulation systems. This usually means a higher voltage insulation system than for a standard utility-fed motor. LCI Drive Design a. The input transformer is se ...
... f. An output filter has not been used in the past for any VSI drives. g. The motors for VSI drives are custom built with appropriate motor insulation systems. This usually means a higher voltage insulation system than for a standard utility-fed motor. LCI Drive Design a. The input transformer is se ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... There are different electrical machines that have been used in automotive application so far, like induction machines, DC machines, permanent magnet machines and switched reluctance machines. Among these, DC machines have been ruled out because of the high maintenance problems associated with its op ...
... There are different electrical machines that have been used in automotive application so far, like induction machines, DC machines, permanent magnet machines and switched reluctance machines. Among these, DC machines have been ruled out because of the high maintenance problems associated with its op ...
ADVANCES IN INTERPRETING PARTIAL DISCHARGE TEST RESULTS FROM
... stators equipped with 80 pF couplers mounted within the stator winding, very close to the phase end coils in a given circuit (often referred to as PDA couplers) in hydrogenerators. Comparing Tables II and III, there is relatively little effect of sensor location on the distributions; although termin ...
... stators equipped with 80 pF couplers mounted within the stator winding, very close to the phase end coils in a given circuit (often referred to as PDA couplers) in hydrogenerators. Comparing Tables II and III, there is relatively little effect of sensor location on the distributions; although termin ...
AC motor
An AC motor is an electric motor driven by an alternating current (AC). The AC motor commonly consists of two basic parts, an outside stationary stator having coils supplied with alternating current to produce a rotating magnetic field, and an inside rotor attached to the output shaft producing a second rotating magnetic field. The rotor magnetic field may be produced by permanent magnets, reluctance saliency, or DC or AC electrical windings.Less commonly, linear AC motors operate on similar principles as rotating motors but have their stationary and moving parts arranged in a straight line configuration, producing linear motion instead of rotation.