File - ELECTRICAL ENGINEERING DEPT, DCE
... 5. Under this no load condition, one set of readings namely, applied voltage (VL), armature current (Ia), field current (If), the two spring balance readings (F1and F2) and motor speed (N) are noted down in the tabular column. 6. The load on the motor is increased in steps gradually and at each step ...
... 5. Under this no load condition, one set of readings namely, applied voltage (VL), armature current (Ia), field current (If), the two spring balance readings (F1and F2) and motor speed (N) are noted down in the tabular column. 6. The load on the motor is increased in steps gradually and at each step ...
Selecting among DRV88xx devices to drive Brushed or Stepper
... When the shaft is rotated, the motor moves freely with the generated back EMF flowing through the body diodes, not any power FETs. Since stepper current only needs to be defined when the H Bridge is enabled (ENABLE = HI), this behavior is akin to stepper driving techniques. However, this very same b ...
... When the shaft is rotated, the motor moves freely with the generated back EMF flowing through the body diodes, not any power FETs. Since stepper current only needs to be defined when the H Bridge is enabled (ENABLE = HI), this behavior is akin to stepper driving techniques. However, this very same b ...
Switching Pattern-Independent Simulation Model for Brushless DC
... through MATLAB. A flowchart of the simulation procedure is presented in Fig. 4. After all of the values are initialized, the program loop, which contains the functions for setting up model equations and solving differential equations, is repeated until the final results are obtained. In the simulati ...
... through MATLAB. A flowchart of the simulation procedure is presented in Fig. 4. After all of the values are initialized, the program loop, which contains the functions for setting up model equations and solving differential equations, is repeated until the final results are obtained. In the simulati ...
3-Phase PM Synchronous Motor Nyachulue Njita High Speed with Low Torque
... this creates a hindrance (reluctance) for the flux to circulate easily. However, the airgap is normally unavoidable and contains some amount of air, which offers high resistance to magnetic flux and requires undesirable increase in magnetizing current and the associated electrical losses. ...
... this creates a hindrance (reluctance) for the flux to circulate easily. However, the airgap is normally unavoidable and contains some amount of air, which offers high resistance to magnetic flux and requires undesirable increase in magnetizing current and the associated electrical losses. ...
E L E C T R I C I A... SYLLABUS OF SEMESTER SYSTEM FOR THE TRADE OF
... carryout Installation, maintenance & repair works of Electrical AC, DC, machinery, lighting circuits, domestic appliances and equipments used in domestic and industries read and interpret the blue print reading ( Electrical layout Drawing as per BIS specification & standards) carry out Domestic and ...
... carryout Installation, maintenance & repair works of Electrical AC, DC, machinery, lighting circuits, domestic appliances and equipments used in domestic and industries read and interpret the blue print reading ( Electrical layout Drawing as per BIS specification & standards) carry out Domestic and ...
electrician - Directorate General of Training
... carryout Installation, maintenance & repair works of Electrical AC, DC, machinery, lighting circuits, domestic appliances and equipments used in domestic and industries read and interpret the blue print reading ( Electrical layout Drawing as per BIS specification & standards) carry out Domestic and ...
... carryout Installation, maintenance & repair works of Electrical AC, DC, machinery, lighting circuits, domestic appliances and equipments used in domestic and industries read and interpret the blue print reading ( Electrical layout Drawing as per BIS specification & standards) carry out Domestic and ...
Modeling and Control of a Variable-Speed Constant-Frequency Synchronous Generator With Brushless Exciter
... of the magnetic field in the rotor iron is very low. Since doubly fed induction machines may be operated at large slip, iron losses will exist in both the stator and the rotor, within which the latter is proportional to the frequency of rotor flux density. The inclusion of iron losses in the equival ...
... of the magnetic field in the rotor iron is very low. Since doubly fed induction machines may be operated at large slip, iron losses will exist in both the stator and the rotor, within which the latter is proportional to the frequency of rotor flux density. The inclusion of iron losses in the equival ...
Installation Instructions For SLO
... Dangerous voltages, currents, temperatures, and energy levels exist within this unit, on certain accessible terminals, and at the motor. NEVER operate the unit with its protective cover removed! Exercise caution when installing and using this unit. Only qualified personnel should attempt to install ...
... Dangerous voltages, currents, temperatures, and energy levels exist within this unit, on certain accessible terminals, and at the motor. NEVER operate the unit with its protective cover removed! Exercise caution when installing and using this unit. Only qualified personnel should attempt to install ...
Elektra Instructions.pm
... sinks should never contact each other or other conductive objects (metal, graphite, etc.), or they will short circuit and damage the speed control. ...
... sinks should never contact each other or other conductive objects (metal, graphite, etc.), or they will short circuit and damage the speed control. ...
CHRISTU JYOTI INSTITUTE OF TECHNOLOGY & SCIENCE LABORATORY MANUAL ELECTRICAL MACHINES II
... as the starting current is around 5 times the full load rating of the motor. Moving coil ammeters being very delicate, may get damaged due to high starting current. A switch has been provided on such meters to disconnect the moving coil of the meter during starting. This switch should be closed afte ...
... as the starting current is around 5 times the full load rating of the motor. Moving coil ammeters being very delicate, may get damaged due to high starting current. A switch has been provided on such meters to disconnect the moving coil of the meter during starting. This switch should be closed afte ...
UM1452
... magnets. In this respect, the PM synchronous motor is equivalent to an induction motor where the air gap magnetic field is produced by a permanent magnet. The use of a permanent magnet to generate a substantial air gap magnetic flux makes it possible to design highly efficient PM motors. A PM synchr ...
... magnets. In this respect, the PM synchronous motor is equivalent to an induction motor where the air gap magnetic field is produced by a permanent magnet. The use of a permanent magnet to generate a substantial air gap magnetic flux makes it possible to design highly efficient PM motors. A PM synchr ...
06310013, 06210001, 05310059, 06310041
... hazardous environments such as power plants, industrial settings, etc. The system is designed in order to help the operators to reduce their burden so that they can focus on critical tasks (such as grasping, holding , placing , reaching etc.). ...
... hazardous environments such as power plants, industrial settings, etc. The system is designed in order to help the operators to reduce their burden so that they can focus on critical tasks (such as grasping, holding , placing , reaching etc.). ...
IRMCF3xx Series Controller Dynamics and Tuning
... The iMotion current controller utilizes Field-Oriented synchronously rotating reference frame type regulators. Field-Orientation provides significant simplification to the control dynamics of the current loop. There are two current regulators (one for d-channel and one for q-channel) employed for cu ...
... The iMotion current controller utilizes Field-Oriented synchronously rotating reference frame type regulators. Field-Orientation provides significant simplification to the control dynamics of the current loop. There are two current regulators (one for d-channel and one for q-channel) employed for cu ...
Traxxas - RC World
... antenna wire. The receiver should be mounted so the antenna wire can be extended as far away from the speed control as possible. The antenna wire should be extended vertically in the mast and not wrapped on the chassis under the body. Excess antenna wire should not be coiled on the chassis. Servo ca ...
... antenna wire. The receiver should be mounted so the antenna wire can be extended as far away from the speed control as possible. The antenna wire should be extended vertically in the mast and not wrapped on the chassis under the body. Excess antenna wire should not be coiled on the chassis. Servo ca ...
Galvanometer controlled recorder
... across chart paper 27 through a displacement propor tional to the rotation of pen motor 20. Bracket 4, which is connected vto pulley 21, will rotate A light source 7, which is provided electrical energy 55 along with gear 17 until it lines up with shutter 5 at which ...
... across chart paper 27 through a displacement propor tional to the rotation of pen motor 20. Bracket 4, which is connected vto pulley 21, will rotate A light source 7, which is provided electrical energy 55 along with gear 17 until it lines up with shutter 5 at which ...
unit 2 dc machines
... directly proportional to field flux (and hence, also directly proportional to the field current). However, even when the field current is zero, some amount of emf is generated (represented by OA in the figure below). This initially induced emf is due to the fact that there exists some residual magne ...
... directly proportional to field flux (and hence, also directly proportional to the field current). However, even when the field current is zero, some amount of emf is generated (represented by OA in the figure below). This initially induced emf is due to the fact that there exists some residual magne ...
AG-AMIII-01.423-05.2 Electric Motors
... rotor and also has brushes and a commutator. D. Capacitor-start motor- A motor that has a capacitor in the starting windings E. Horsepower (hp)- A unit of mechanical power which is equal to 746 watts of electrical power. F. Short circuit- An improper connection between a hot and a neutral wire or be ...
... rotor and also has brushes and a commutator. D. Capacitor-start motor- A motor that has a capacitor in the starting windings E. Horsepower (hp)- A unit of mechanical power which is equal to 746 watts of electrical power. F. Short circuit- An improper connection between a hot and a neutral wire or be ...
lecture1424353332
... Low starting current of the order of 250 to 350% of the full load current. ...
... Low starting current of the order of 250 to 350% of the full load current. ...
Viesturs Bražis. Asynchronous electric drive with frontal part winding
... stator voltage control during start. In the second half of 20th century this method were researched by L. Petrov [10], V. Shubenko [13], I. Braslavskiy [13], J. Greivulis [6], L. Ribickis [6], I. Rankis and A. Zhiraveckaya. Although the stator voltage control at starting lets to control the transien ...
... stator voltage control during start. In the second half of 20th century this method were researched by L. Petrov [10], V. Shubenko [13], I. Braslavskiy [13], J. Greivulis [6], L. Ribickis [6], I. Rankis and A. Zhiraveckaya. Although the stator voltage control at starting lets to control the transien ...
R26104116
... the neural networks can execute the non-linear data mapping in short time and of the distributed network structure, the performance of the neural network may not be influenced by some miss connections in the network itself. A control system with multi input neural network may not be affected by part ...
... the neural networks can execute the non-linear data mapping in short time and of the distributed network structure, the performance of the neural network may not be influenced by some miss connections in the network itself. A control system with multi input neural network may not be affected by part ...
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.