2015 New Functionalities in Flux12 with Macros PL CN68
... How to create a rotating sine Flux density along a line in 2D? For some specific applications, it can be use to represent only the rotor or the stator part, even in 2D (for computing eddy current losses in magnets, for instance). It is possible to do it with Flux by the mean of line region, by assig ...
... How to create a rotating sine Flux density along a line in 2D? For some specific applications, it can be use to represent only the rotor or the stator part, even in 2D (for computing eddy current losses in magnets, for instance). It is possible to do it with Flux by the mean of line region, by assig ...
60ml “TL-CL
... 2. A circuit as claimed in claim 1 wherein each stage includes-a drive transistor connected to its associated 45 power transistor, and a resistor which is connected to the and goes through coupling capacitor 12 of the ?rst RC collector of each drive transistor. network 13 to the next control stage c ...
... 2. A circuit as claimed in claim 1 wherein each stage includes-a drive transistor connected to its associated 45 power transistor, and a resistor which is connected to the and goes through coupling capacitor 12 of the ?rst RC collector of each drive transistor. network 13 to the next control stage c ...
Design of Direct Torque Controller of Induction Motor (DTC)
... 6- The motor is initially relaxed. The IM may be modelled with respect to its stator, its rotor or its synchronous speed. These are known as referencing frames. All variables such as voltage, current and flux in the motor should be referred to the selected frame for modelling. In other words, IM can ...
... 6- The motor is initially relaxed. The IM may be modelled with respect to its stator, its rotor or its synchronous speed. These are known as referencing frames. All variables such as voltage, current and flux in the motor should be referred to the selected frame for modelling. In other words, IM can ...
ECE 431 Electric Machines Lab Manual
... panels are numbered 1 – 11. Each is supplied from a set of circuit breakers. Your instructor will assist you by turning on the necessary breakers when you are ready. Please realize that circuit breakers can only protect against extreme problems or mistakes. They cannot protect against electric shock ...
... panels are numbered 1 – 11. Each is supplied from a set of circuit breakers. Your instructor will assist you by turning on the necessary breakers when you are ready. Please realize that circuit breakers can only protect against extreme problems or mistakes. They cannot protect against electric shock ...
Microelectromechanical Devices
... In this case the three upper devices (Q1, Q3, and Q5) are turned on sequentially in the middle of the positive half-cycles of the phase voltages and the lower devices (Q2,Q4 and Q6) are chopped sequentially in the middle of the negative half-cycles of the phase voltages to achieve the desired curren ...
... In this case the three upper devices (Q1, Q3, and Q5) are turned on sequentially in the middle of the positive half-cycles of the phase voltages and the lower devices (Q2,Q4 and Q6) are chopped sequentially in the middle of the negative half-cycles of the phase voltages to achieve the desired curren ...
Motor Protection Principles
... • For large cables that cannot be fit through the zero sequence CT’s window, the residual ground fault configuration can be used. • This configuration is inherently less sensitive than that of the zero sequence configuration owing to the fact that the CTs are not perfectly matched. • During motor st ...
... • For large cables that cannot be fit through the zero sequence CT’s window, the residual ground fault configuration can be used. • This configuration is inherently less sensitive than that of the zero sequence configuration owing to the fact that the CTs are not perfectly matched. • During motor st ...
Combination Motor Control Units
... overload, the breaker will trip, disconnecting the load from the voltage source. If a short circuit occurs, the breaker responds instantaneously to the fault current and disconnects the circuit. This type of circuit breaker is used in applications where a motor starter is not used, such as a main di ...
... overload, the breaker will trip, disconnecting the load from the voltage source. If a short circuit occurs, the breaker responds instantaneously to the fault current and disconnects the circuit. This type of circuit breaker is used in applications where a motor starter is not used, such as a main di ...
EH35754760
... Nowadays, Induction Motors drives are popular in industries, because of their advantages over the DC drives. The variable speed induction motor drives need a better transient performance compared with steady state operation. In high performance speed control applications, the direct torque control ( ...
... Nowadays, Induction Motors drives are popular in industries, because of their advantages over the DC drives. The variable speed induction motor drives need a better transient performance compared with steady state operation. In high performance speed control applications, the direct torque control ( ...
to PDF
... are not normally needed for stators rated 6 kV or less. Clearly this is because it is unlikely that the critical threshold of 3 kV/mm electric breakdown strength of air will occur at this low operating voltage, even if a substantial gap occurs between the coil and the core. The use of a thin gr ...
... are not normally needed for stators rated 6 kV or less. Clearly this is because it is unlikely that the critical threshold of 3 kV/mm electric breakdown strength of air will occur at this low operating voltage, even if a substantial gap occurs between the coil and the core. The use of a thin gr ...
PQ Circle Diagram Based Parameter Measurement for Permanent
... excitation is constant, i.e., permanent magnet flux is constant. Especially, the iron loss resistance cannot be measure by the no-load test. This paper presents parameter measurement for PMSM based on the P-Q circle diagram [7]. The P-Q circle diagram can be depicted from the pairs of active power a ...
... excitation is constant, i.e., permanent magnet flux is constant. Especially, the iron loss resistance cannot be measure by the no-load test. This paper presents parameter measurement for PMSM based on the P-Q circle diagram [7]. The P-Q circle diagram can be depicted from the pairs of active power a ...
Journal of Applied Science and Agriculture
... (Garcia, M., et al., 2008; Mohand Ouhrouche, 2009). As it was mentioned earlier, one of advantages of doubly-fed induction generators is connecting electronic power converter in rotor side with less power than stator, which this way of connection provides performance ability even in low voltages wit ...
... (Garcia, M., et al., 2008; Mohand Ouhrouche, 2009). As it was mentioned earlier, one of advantages of doubly-fed induction generators is connecting electronic power converter in rotor side with less power than stator, which this way of connection provides performance ability even in low voltages wit ...
VFDs: Do`s and Don`ts - PNWS-AWWA
... voltage and supply three phase voltage to the motor VFDs make great phase converters and you also get better motor protection than the alternatives The VFD just needs to be sized appropriately for the amp load difference. Typically doubling the VFD size works i.e. if you had a 5 hp three phase motor ...
... voltage and supply three phase voltage to the motor VFDs make great phase converters and you also get better motor protection than the alternatives The VFD just needs to be sized appropriately for the amp load difference. Typically doubling the VFD size works i.e. if you had a 5 hp three phase motor ...
Starting High Inertia Loads - Rockwell Automation Knowledgebase
... be able to react because its trip setting would be set to accommodate higher current levels required at start-up and not the relatively light current load required once the motor is at running speed. When a motor stalls, it is subjected to locked rotor current. A solidstate device with built-in stal ...
... be able to react because its trip setting would be set to accommodate higher current levels required at start-up and not the relatively light current load required once the motor is at running speed. When a motor stalls, it is subjected to locked rotor current. A solidstate device with built-in stal ...
Python code - Faculty of Engineering - An
... • SD card slot: The SD card is important because it is where the RasPi keeps its operating system. It is also where we will store our documents, programs, and pictures. It is the secondary and a necessary memory part for the RasPi, the onboard RAM being the primary. • USB: This is the most common co ...
... • SD card slot: The SD card is important because it is where the RasPi keeps its operating system. It is also where we will store our documents, programs, and pictures. It is the secondary and a necessary memory part for the RasPi, the onboard RAM being the primary. • USB: This is the most common co ...
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.