13 common causes of motor failure
... Simply stated, harmonics are any unwanted additional source of high frequency AC voltages or currents supplying energy to the motor windings. This additional energy is not used to turn the motor shaft but circulates in the windings and ultimately contributes to internal energy losses. These losses d ...
... Simply stated, harmonics are any unwanted additional source of high frequency AC voltages or currents supplying energy to the motor windings. This additional energy is not used to turn the motor shaft but circulates in the windings and ultimately contributes to internal energy losses. These losses d ...
Selecting among DRV88xx devices to drive Brushed or Stepper
... Although following these suggestions will yield the fastest component selection for any given application, it is still possible to utilize the same device to drive the “non-suggested” load. That is, a stepper optimized H bridge can still be used to drive a DC motor, and vice versa, as long as some d ...
... Although following these suggestions will yield the fastest component selection for any given application, it is still possible to utilize the same device to drive the “non-suggested” load. That is, a stepper optimized H bridge can still be used to drive a DC motor, and vice versa, as long as some d ...
gradients - GEOCITIES.ws
... forming of a dipole from two isolated charges of equal magnitude and opposite sign. To form a quadrupole system begin with two well separarted equivalent set of dipoles and bring them close enough so that neither of the dipoles can be said to be far from the influence of the other dipole. Bringing t ...
... forming of a dipole from two isolated charges of equal magnitude and opposite sign. To form a quadrupole system begin with two well separarted equivalent set of dipoles and bring them close enough so that neither of the dipoles can be said to be far from the influence of the other dipole. Bringing t ...
Self-generated and Externally Driven Current Oscillations in n-GaAs
... Experimental investigations of self-generated and externally driven nonThe observed current oscillations were analyzed in terms linear current oscillations due to impact ionization of shallow impurities in of nonlinear dynamics and different routes to chaos could n-type GaAs at low temperatures are ...
... Experimental investigations of self-generated and externally driven nonThe observed current oscillations were analyzed in terms linear current oscillations due to impact ionization of shallow impurities in of nonlinear dynamics and different routes to chaos could n-type GaAs at low temperatures are ...
press release
... Whereas in recent years approaches to saving energy have been predominantly mapped out by the component suppliers of the machine tool manufacturers, the latter have meanwhile taken fully on board the necessity of upgrading their products’ energy-efficiency. In parallel to hydraulic units, e.g. in cl ...
... Whereas in recent years approaches to saving energy have been predominantly mapped out by the component suppliers of the machine tool manufacturers, the latter have meanwhile taken fully on board the necessity of upgrading their products’ energy-efficiency. In parallel to hydraulic units, e.g. in cl ...
ELA O 320.6 en EGE Arc suppression coil
... box (D) to the main screw shaft bearing cores. The motor (C) is fixed to a flange of the main gear box. The gear box is placed on ASC cover and equipped with a flat and Simmering ...
... box (D) to the main screw shaft bearing cores. The motor (C) is fixed to a flange of the main gear box. The gear box is placed on ASC cover and equipped with a flat and Simmering ...
ee6401 electrical machines-i
... ò ç N ÷ cø Alc : volume of the core. c dBc : area of the ac hysteresis loop. ...
... ò ç N ÷ cø Alc : volume of the core. c dBc : area of the ac hysteresis loop. ...
LARGE TRANSFORMERS FOR POWER ELECTRONIC LOADS
... flux density B, and f is the frequency. Even though flux density may be low for the harmonics, frequency is high, and harmonic eddy current losses are often higher than for the fundamental. There is no practical way to find these losses from factory tests, and a designer has to rely almost entirely ...
... flux density B, and f is the frequency. Even though flux density may be low for the harmonics, frequency is high, and harmonic eddy current losses are often higher than for the fundamental. There is no practical way to find these losses from factory tests, and a designer has to rely almost entirely ...
Shaft Grounding and Sliding Electrical Contacts
... A sliding electrical contact is a component that conducts electrical power between surfaces that are in relative motion. The most common applications have been the many types of motors and generators that require power to the rotating part. The electrical and magnetic circuits in these machines inhe ...
... A sliding electrical contact is a component that conducts electrical power between surfaces that are in relative motion. The most common applications have been the many types of motors and generators that require power to the rotating part. The electrical and magnetic circuits in these machines inhe ...
Application note
... the full-bridge converter remains on the 12V – same like the input voltage from the battery. This allows to use only some voltage stabilizer instead of configurable DC/DC converter. ...
... the full-bridge converter remains on the 12V – same like the input voltage from the battery. This allows to use only some voltage stabilizer instead of configurable DC/DC converter. ...
Behaviour of transformers under DC/GIC excitation
... Susceptibility to geomagnetically induced currents or significant stray DC currents as ground return mode (GRM) DC currents may impact the substation design. Some utilities have experimented use of Neutral DC Current Blocking Devices to limit the harmful effect of these currents [7]. More generally, ...
... Susceptibility to geomagnetically induced currents or significant stray DC currents as ground return mode (GRM) DC currents may impact the substation design. Some utilities have experimented use of Neutral DC Current Blocking Devices to limit the harmful effect of these currents [7]. More generally, ...
Live Performance Electrical Certificate
... audio visual installations used in live entertainment. The FE and LE tickets cover a much wider scope of work and are more applicable to workers at the department head level who perform power tie-ins and more complex electrical work as well as film and television workers, who deal with high power li ...
... audio visual installations used in live entertainment. The FE and LE tickets cover a much wider scope of work and are more applicable to workers at the department head level who perform power tie-ins and more complex electrical work as well as film and television workers, who deal with high power li ...
Complete PDF Edition - Mitsubishi Electric Corporation
... parameters Φm, Ld, and Lq, all of which have current dependence in consideration of magnetic saturation. Therefore, using these motor parameters, performance can be enhanced over broader ranges of speed. This technique can be used for optimizing power electronics equipment for variable-speed motor d ...
... parameters Φm, Ld, and Lq, all of which have current dependence in consideration of magnetic saturation. Therefore, using these motor parameters, performance can be enhanced over broader ranges of speed. This technique can be used for optimizing power electronics equipment for variable-speed motor d ...
June 4th Summer Quarter Starts
... capable of interrupting all electrical transmission between the accumulators and the energy consumers by means of a sparkproof general circuit breaker situated in front of him. This breaker must be located in such a way that it can be also operated from outside the motorcycle. This breaker must be c ...
... capable of interrupting all electrical transmission between the accumulators and the energy consumers by means of a sparkproof general circuit breaker situated in front of him. This breaker must be located in such a way that it can be also operated from outside the motorcycle. This breaker must be c ...
