Basic Controls, 4-1 Friction Brakes
... Friction brakes, or magnetic brakes, are used to secure (hold) the position of a motor in lifting appliances. They are also used to reduce motor stopping time and execute precise control. Friction brakes operate in a manner similar to automobile brakes. Braking is accomplished by friction surfaces ( ...
... Friction brakes, or magnetic brakes, are used to secure (hold) the position of a motor in lifting appliances. They are also used to reduce motor stopping time and execute precise control. Friction brakes operate in a manner similar to automobile brakes. Braking is accomplished by friction surfaces ( ...
Datasheet for the Toshibas TA8050P
... When the output current (pin 3 or 5, I sink or I source) is up to the ISD detection current, the output is controlled by the input signals. When it exceeds the detection current, the output assumes a switching waveform as shown in Fig.1. ...
... When the output current (pin 3 or 5, I sink or I source) is up to the ISD detection current, the output is controlled by the input signals. When it exceeds the detection current, the output assumes a switching waveform as shown in Fig.1. ...
LTS15-NP, LEM, current sensor 15Arms, Vout, +5V supply.pdf
... Please see the operation principle on the other side Only due to TCR IM. ...
... Please see the operation principle on the other side Only due to TCR IM. ...
eet 3086 power transmission and distribution
... To evaluate the overcurrent protection performance ...
... To evaluate the overcurrent protection performance ...
Technical Note - Copley Controls
... using “I squared T” methods 1.0 Introduction The goal of an effective motor overload protection scheme is to protect the motor from damage while allowing it to operate normally up to its thermal limit. Ideally such a scheme would be based on a direct measurement of internal motor temperatures. Unfor ...
... using “I squared T” methods 1.0 Introduction The goal of an effective motor overload protection scheme is to protect the motor from damage while allowing it to operate normally up to its thermal limit. Ideally such a scheme would be based on a direct measurement of internal motor temperatures. Unfor ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... components, namely the prime mover, the energy transmitting device and the actual apparatus or equipment[1]. The function of the prime mover and the energy transmitting device is to impart the motion and operate actual apparatus. The most commonly used prime mover is, of course an electric motor, si ...
... components, namely the prime mover, the energy transmitting device and the actual apparatus or equipment[1]. The function of the prime mover and the energy transmitting device is to impart the motion and operate actual apparatus. The most commonly used prime mover is, of course an electric motor, si ...
EN14 107 Basics of Electrical and Electronics & Communication Engg.
... results in the current flowing in the rotor winding. This is irrespective of the rotor type used − cage or wound one, with the cage rotor, with the bars short-circuited by two end-rings, is considered equivalent to a wound one The current in the rotor bars interacts with the air-gap flux to develop ...
... results in the current flowing in the rotor winding. This is irrespective of the rotor type used − cage or wound one, with the cage rotor, with the bars short-circuited by two end-rings, is considered equivalent to a wound one The current in the rotor bars interacts with the air-gap flux to develop ...
™ GSD3 Series DC Drives User Manual User Manual Number: IH-GSD3-User-M Page 1
... regulate the installation and operation of your equipment. These codes vary from area to area and usually change with time. It is your responsibility to determine which codes should be followed, and to verify that the equipment, installation, and operation is in compliance with the latest revision o ...
... regulate the installation and operation of your equipment. These codes vary from area to area and usually change with time. It is your responsibility to determine which codes should be followed, and to verify that the equipment, installation, and operation is in compliance with the latest revision o ...
T.E. - Electrical Electronics Engg.
... 1. No load and Blocked rotor test on induction motor and performance of I.M. from circle diagram. 2. Speed control of Induction Motor by stator voltage control. 3. Speed control of Induction Motor by rotor resistance control. 4. Speed control of Induction Motor by pole changing method. 5. Speed cont ...
... 1. No load and Blocked rotor test on induction motor and performance of I.M. from circle diagram. 2. Speed control of Induction Motor by stator voltage control. 3. Speed control of Induction Motor by rotor resistance control. 4. Speed control of Induction Motor by pole changing method. 5. Speed cont ...
automatic turntalble - North River Railway
... • This presentation is NOT complete at this time nor will it cover the construction of the actual turntable above table level in more than a general way. • This optical circuit was first successfully built and proven over 35 years ago. • This clinic shows a modern, updated version with less cost an ...
... • This presentation is NOT complete at this time nor will it cover the construction of the actual turntable above table level in more than a general way. • This optical circuit was first successfully built and proven over 35 years ago. • This clinic shows a modern, updated version with less cost an ...
Second generation controller protocol
... controller. The controller shall respond to simple commands sent over the serial or USB connections. The protocol is a simple terminal style command line protocol. All commands shall be terminated with a line feed. The controller shall respond to all commands with a readable ASCII response message t ...
... controller. The controller shall respond to simple commands sent over the serial or USB connections. The protocol is a simple terminal style command line protocol. All commands shall be terminated with a line feed. The controller shall respond to all commands with a readable ASCII response message t ...
here
... around another voltage you can use some kind of summing circuit or a diode clamp circuit, or I can help you come up with another circuit. Think hard about whether you want 5 volts and ground or +10 volts driving your CdS sensor circuit. You can use the same signal to drive the input N1 and P2 if you ...
... around another voltage you can use some kind of summing circuit or a diode clamp circuit, or I can help you come up with another circuit. Think hard about whether you want 5 volts and ground or +10 volts driving your CdS sensor circuit. You can use the same signal to drive the input N1 and P2 if you ...
Engineering Letters
... of specific electric loading, which amounts to decreased cost of the machine. Moreover, the leakage reactance and the armature reactance of synchronous machine are higher with large value of specific electric loading. Internal diameter and gross length of the stator can be calculated from the produc ...
... of specific electric loading, which amounts to decreased cost of the machine. Moreover, the leakage reactance and the armature reactance of synchronous machine are higher with large value of specific electric loading. Internal diameter and gross length of the stator can be calculated from the produc ...
Ventilation Structure Improvement of Air-cooled
... thermal analysis of induction motors, due to the complexity of air course and the influence of rotation upon air-flow, cannot be accurately evaluated by using traditional lumped circuits together with empirical curves method. Therefore, a coupled analysis of eddy-current, fluid and thermal fields is ...
... thermal analysis of induction motors, due to the complexity of air course and the influence of rotation upon air-flow, cannot be accurately evaluated by using traditional lumped circuits together with empirical curves method. Therefore, a coupled analysis of eddy-current, fluid and thermal fields is ...
The drive may be seeing the motor acting as a generator
... Regeneration: The characteristic of a motor when the rotor's synchronous frequency is greater than the applied frequency. Dynamic Braking: A system of electric braking in which the motor, when used as a generator, converts the kinetic energy of the load into electric energy dissipated in resistors, ...
... Regeneration: The characteristic of a motor when the rotor's synchronous frequency is greater than the applied frequency. Dynamic Braking: A system of electric braking in which the motor, when used as a generator, converts the kinetic energy of the load into electric energy dissipated in resistors, ...
Solar Xylophone
... turning it all the way in one direction or the other. This controls the efficiency of the circuit, allowing more electricity to reach the capacitor, and thus, adjusting the timing of the motor. One side of the trimpot resists all the electricity while the other resists none. The circuit works correc ...
... turning it all the way in one direction or the other. This controls the efficiency of the circuit, allowing more electricity to reach the capacitor, and thus, adjusting the timing of the motor. One side of the trimpot resists all the electricity while the other resists none. The circuit works correc ...
4- Mutual Inductance
... subscripts are added for the sake of the discussion to indicate it describes the effect of I1 on itself. However the magnetic field produced by one current also can act on an entirely different conductor. This is described as mutual inductance and the volt-ampere relation is written as V2 = L21 dI1/ ...
... subscripts are added for the sake of the discussion to indicate it describes the effect of I1 on itself. However the magnetic field produced by one current also can act on an entirely different conductor. This is described as mutual inductance and the volt-ampere relation is written as V2 = L21 dI1/ ...
Brushed DC electric motor
A brushed DC motor is an internally commutated electric motor designed to be run from a direct current power source. Brushed motors were the first commercially important application of electric power to driving mechanical energy,and DC distribution systems were used for more than 100 years to operate motors in commercial and industrial buildings. Brushed DC motors can be varied in speed by changing the operating voltage or the strength of the magnetic field. Depending on the connections of the field to the power supply, the speed and torque characteristics of a brushed motor can be altered to provide steady speed or speed inversely proportional to the mechanical load. Brushed motors continue to be used for electrical propulsion, cranes, paper machines and steel rolling mills. Since the brushes wear down and require replacement, brushless DC motors using power electronic devices have displaced brushed motors from many applications