SLO-SYN_SS2000MD4M
... An unregulated supply similar to that shown in Figure 3.4 is preferable. If a regulated supply is used, it must be capable of operating with the added filter capaci tor. A switching regulated supply may not be suitable for use with this product. It is important that the capacitor (C1) be connected w ...
... An unregulated supply similar to that shown in Figure 3.4 is preferable. If a regulated supply is used, it must be capable of operating with the added filter capaci tor. A switching regulated supply may not be suitable for use with this product. It is important that the capacitor (C1) be connected w ...
ppt - University of Idaho
... Since there are no carbon brushes to wear out, a BLDC motor can provide significantly greater life being now only limited by bearing wear. BLDC motors also offer additional advantages as by-products of the inherent construction: 1. Higher efficiencies 2. High torque to inertia ratios 3. Greater spee ...
... Since there are no carbon brushes to wear out, a BLDC motor can provide significantly greater life being now only limited by bearing wear. BLDC motors also offer additional advantages as by-products of the inherent construction: 1. Higher efficiencies 2. High torque to inertia ratios 3. Greater spee ...
B0509
... method to modify the reduced admittance matrix after load changes is proposed. In this paper an extensive study of the effect of load modeling on transient stability of the system is performed and some of the results are presented. In the following section of the paper major load modeling methods, w ...
... method to modify the reduced admittance matrix after load changes is proposed. In this paper an extensive study of the effect of load modeling on transient stability of the system is performed and some of the results are presented. In the following section of the paper major load modeling methods, w ...
Downloaded
... of static voltage stability limits of induction generators and the need for reactive power compensation to allow for introduction of large-scale wind power production in the presence of grid limitations [11]–[14]. Dynamic stability limits and transient stability of induction machines has also been i ...
... of static voltage stability limits of induction generators and the need for reactive power compensation to allow for introduction of large-scale wind power production in the presence of grid limitations [11]–[14]. Dynamic stability limits and transient stability of induction machines has also been i ...
Starting and control of slip-ring induction motors
... voltage, and call for larger sizes of cables. It is also cumbersome and cost-inhibiting to provide filter circuits to suppress harmonics, particularly when the installation is small. But where accurate speed control is the process requirement, static controllers, termed ‘slip recovery systems’ (Sect ...
... voltage, and call for larger sizes of cables. It is also cumbersome and cost-inhibiting to provide filter circuits to suppress harmonics, particularly when the installation is small. But where accurate speed control is the process requirement, static controllers, termed ‘slip recovery systems’ (Sect ...
influence of arrangement and sizes of magnets upon
... Tc depends on stator/rotor angular position. Explored by ANSYS/Maxwell was the impact of the permanent magnet volumes and arrangement on the voltage induced and on the cogging torque. Chosen were 2 types of designs, when both motors were two-pole ones. Type A has two poles composed of on the motor s ...
... Tc depends on stator/rotor angular position. Explored by ANSYS/Maxwell was the impact of the permanent magnet volumes and arrangement on the voltage induced and on the cogging torque. Chosen were 2 types of designs, when both motors were two-pole ones. Type A has two poles composed of on the motor s ...
AC-150 GEN 2 INTERFACE DOCUMENT
... The AC-150 motor is not supplied with a gear reduction unit, although in most applications, one is required. As an aid in matching the drive system to vehicle requirements, the graph on page 6 shows the maximum available motor torque (and thus power which is the product of speed and torque) versus m ...
... The AC-150 motor is not supplied with a gear reduction unit, although in most applications, one is required. As an aid in matching the drive system to vehicle requirements, the graph on page 6 shows the maximum available motor torque (and thus power which is the product of speed and torque) versus m ...
Load Model Issues for RAS, LFWG, LOLEWG discussion
... b. A dc power flow model represents the transmission network at the bus level – loads are defined at individual busses and generators are connected to individual buses. Power flows across the transmission system according to the electrical laws of physics. The thermal impact of transmission outages ...
... b. A dc power flow model represents the transmission network at the bus level – loads are defined at individual busses and generators are connected to individual buses. Power flows across the transmission system according to the electrical laws of physics. The thermal impact of transmission outages ...
eet 3086 power transmission and distribution
... the three overcurrent relays. This reduces the number of connections between the line current transformers and overcurrent relays (four instead of six). Furthermore, this allows the same line current transformers to be used for both overcurrent protection and earth fault protection, by connecting th ...
... the three overcurrent relays. This reduces the number of connections between the line current transformers and overcurrent relays (four instead of six). Furthermore, this allows the same line current transformers to be used for both overcurrent protection and earth fault protection, by connecting th ...
ECE 431 Electric Machines Lab Manual
... The laboratory is equipped with an emergency electrical shutoff system. This can be activated by any of the large red buttons located on panels and benches throughout the room. When any button is pushed, power is disconnected from all panels in the room. The regular wall duplex outlets and the room ...
... The laboratory is equipped with an emergency electrical shutoff system. This can be activated by any of the large red buttons located on panels and benches throughout the room. When any button is pushed, power is disconnected from all panels in the room. The regular wall duplex outlets and the room ...
The latest Soft-Starter Technology
... No additional hardware or feedback devices are required Automatic zero speed shut off is integrated into the controller ...
... No additional hardware or feedback devices are required Automatic zero speed shut off is integrated into the controller ...
Maximum reachable torque, power and speed for five-phase
... N electric vehicle or marine propulsion applications, high power density and fault tolerant capability are commonly required for the machine drive. This context favours the use of multi-phase PM machines. Furthermore, a wide speed range capability is also often wanted thus making the machine operati ...
... N electric vehicle or marine propulsion applications, high power density and fault tolerant capability are commonly required for the machine drive. This context favours the use of multi-phase PM machines. Furthermore, a wide speed range capability is also often wanted thus making the machine operati ...
T4800 Load Sharer
... be positive with the generator on load. If the polarity is positive, change the voltage connections 1 and 3 or 2 and 3 or the current connections 5 and 6. 2. Increase and decrease outputs should be obtained as indicated by the LEDs on the front. 3. The parallel lines connected to 12 (COM.) and ...
... be positive with the generator on load. If the polarity is positive, change the voltage connections 1 and 3 or 2 and 3 or the current connections 5 and 6. 2. Increase and decrease outputs should be obtained as indicated by the LEDs on the front. 3. The parallel lines connected to 12 (COM.) and ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... where GE, GCE and GU are scaling factors at the input and output of FLC . The term ‘u’ represents the fuzzy controller output and ‘U’ denotes scaled output of fuzzy logic controller. The fuzzy PD controller uses rules of the form: RPID: If e is PB(Positive Big) and e is PS (Positive Small) then u i ...
... where GE, GCE and GU are scaling factors at the input and output of FLC . The term ‘u’ represents the fuzzy controller output and ‘U’ denotes scaled output of fuzzy logic controller. The fuzzy PD controller uses rules of the form: RPID: If e is PB(Positive Big) and e is PS (Positive Small) then u i ...
COBB TUNING
... We highly suggest that you first REFLASH the calibration which is best matched for the performance hardware installed on your vehicle. Some of the optimal logic will be programmed to your ECU using the REFLASH option. From that point forward, we suggest you use the REALTIME option for changing your ...
... We highly suggest that you first REFLASH the calibration which is best matched for the performance hardware installed on your vehicle. Some of the optimal logic will be programmed to your ECU using the REFLASH option. From that point forward, we suggest you use the REALTIME option for changing your ...
25471_energy_conversion_22
... magnetization curves are expressed as plots of EA vs field current, normally an equivalent field current is defined that would produce the same output voltage as the combination of all the mmf in the machine The equivalent field current : ...
... magnetization curves are expressed as plots of EA vs field current, normally an equivalent field current is defined that would produce the same output voltage as the combination of all the mmf in the machine The equivalent field current : ...
EET 3092 SWITCHGEAR AND PROTECTION
... Care must be taken when adjusting the current setting of the overcurrent relays. It must be 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 t ...
... Care must be taken when adjusting the current setting of the overcurrent relays. It must be 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 t ...
Final Test Plan
... 2.1.2. Phases of Testing 2.1.2.1. Electric Solenoid (ME) Test 1: Force Output must yield at least 35lb of force. Test 2: Shift time must be less than 0.1 second. ...
... 2.1.2. Phases of Testing 2.1.2.1. Electric Solenoid (ME) Test 1: Force Output must yield at least 35lb of force. Test 2: Shift time must be less than 0.1 second. ...
Control of Electric Vehicle
... widely used in modern electric vehicles. Some research even concludes that the induction machine provides better overall performance compared to the other machines (Gosden et al., 1994). An induction motor (or asynchronous motor or squirrel-cage motor) is a type of alternating current motor where po ...
... widely used in modern electric vehicles. Some research even concludes that the induction machine provides better overall performance compared to the other machines (Gosden et al., 1994). An induction motor (or asynchronous motor or squirrel-cage motor) is a type of alternating current motor where po ...
question bank - SIETK ECE Dept
... 8. The armature of a 4 pole, lap-wound D.c shunt generator has 120 slots with 4 conductors per slot.The flux per pole is 0.05 wb. the armature resistance is 0.05ohm .and shunt field resistance is 50 ohm.Find the speed of the machine when supplying 45A at a terminal voltage of 250V. [L4][CO1][10M] 9. ...
... 8. The armature of a 4 pole, lap-wound D.c shunt generator has 120 slots with 4 conductors per slot.The flux per pole is 0.05 wb. the armature resistance is 0.05ohm .and shunt field resistance is 50 ohm.Find the speed of the machine when supplying 45A at a terminal voltage of 250V. [L4][CO1][10M] 9. ...
Lab Manual - Lakehead University
... 4. Never work on electrical circuits with wet or moist hands. 5. Do not play with equipment not directly involved in your experiment. 6. When in the lab do not wear clothing or jewelry which could constitute a health hazard. Shoes, preferably rubber soled ones, must be worn in the lab. Long hair pre ...
... 4. Never work on electrical circuits with wet or moist hands. 5. Do not play with equipment not directly involved in your experiment. 6. When in the lab do not wear clothing or jewelry which could constitute a health hazard. Shoes, preferably rubber soled ones, must be worn in the lab. Long hair pre ...
Sérgio CRUZ 1,2 , Flávio GASPAR 2
... When the inertia of the load is very high, the speed oscillations of the motor will be very small, and that ellipse will tend to a circumference. On the other hand, for extremely low values of the inertia, the ellipse tends to degenerate into a straight line oriented along the second quadrant of th ...
... When the inertia of the load is very high, the speed oscillations of the motor will be very small, and that ellipse will tend to a circumference. On the other hand, for extremely low values of the inertia, the ellipse tends to degenerate into a straight line oriented along the second quadrant of th ...
Starting High Inertia Loads - Rockwell Automation Knowledgebase
... applied across the winding, but rather it is applied between the “Y” points. The voltage across the winding is then reduced by the square root of three. Consequently, starting torque and starting current are approximately 1/3 normal. After the starting period, which is determined by a timer setting, ...
... applied across the winding, but rather it is applied between the “Y” points. The voltage across the winding is then reduced by the square root of three. Consequently, starting torque and starting current are approximately 1/3 normal. After the starting period, which is determined by a timer setting, ...
Dynamometer
.jpg?width=300)
A dynamometer or ""dyno"" for short, is a device for measuring force, torque, or power. For example, the power produced by an engine, motor or other rotating prime mover can be calculated by simultaneously measuring torque and rotational speed (RPM).A dynamometer can also be used to determine the torque and power required to operate a driven machine such as a pump. In that case, a motoring or driving dynamometer is used. A dynamometer that is designed to be driven is called an absorption or passive dynamometer. A dynamometer that can either drive or absorb is called a universal or active dynamometer.In addition to being used to determine the torque or power characteristics of a machine under test (MUT), dynamometers are employed in a number of other roles. In standard emissions testing cycles such as those defined by the United States Environmental Protection Agency (US EPA), dynamometers are used to provide simulated road loading of either the engine (using an engine dynamometer) or full powertrain (using a chassis dynamometer). In fact, beyond simple power and torque measurements, dynamometers can be used as part of a testbed for a variety of engine development activities, such as the calibration of engine management controllers, detailed investigations into combustion behavior, and tribology.In the medical terminology, hand-held dynamometers are used for routine screening of grip and hand strength, and the initial and ongoing evaluation of patients with hand trauma or dysfunction. They are also used to measure grip strength in patients where compromise of the cervical nerve roots or peripheral nerves is suspected.In the rehabilitation, kinesiology, and ergonomics realms, force dynamometers are used for measuring the back, grip, arm, and/or leg strength of athletes, patients, and workers to evaluate physical status, performance, and task demands. Typically the force applied to a lever or through a cable is measured and then converted to a moment of force by multiplying by the perpendicular distance from the force to the axis of the level.