Investigation of DC Motors for Electric and Hybrid Electric Motor
... Since the early 1900’s demand for fuel efficient vehicles has motivated the development of electric and hybrid electric vehicles. Unfortunately, some components used in these vehicles are expensive and complex. AC motors, complex electronic controllers and complex battery management systems are curr ...
... Since the early 1900’s demand for fuel efficient vehicles has motivated the development of electric and hybrid electric vehicles. Unfortunately, some components used in these vehicles are expensive and complex. AC motors, complex electronic controllers and complex battery management systems are curr ...
Gast Hazardous Duty Regenair® Blowers
... air flowing through the blower. Other units can only be run at the rating shown on the model number label. Do not close off inlet (for vacuum) to reduce extra air flow. This will cause added heat and motor load. Blower exhaust air in excess of 2300F indicates operation in excess of rating which can ...
... air flowing through the blower. Other units can only be run at the rating shown on the model number label. Do not close off inlet (for vacuum) to reduce extra air flow. This will cause added heat and motor load. Blower exhaust air in excess of 2300F indicates operation in excess of rating which can ...
ELECTROTECHNOLOGY N3
... Lap winding is also known as an overlap or parallel winding. The two ends of each coil are connected to adjacent commutator segments. The shape of the lap winding is shown in Fig. 1.3. The number of parallel circuits formed by a lap winding is the same as the number of poles. The total current in th ...
... Lap winding is also known as an overlap or parallel winding. The two ends of each coil are connected to adjacent commutator segments. The shape of the lap winding is shown in Fig. 1.3. The number of parallel circuits formed by a lap winding is the same as the number of poles. The total current in th ...
SKF - Engineering News
... These are all examples of static testing of motor insulation – where the motor is disconnected from its power source and tested separately. This identifies problems within the motor. However, motors can also be electrically tested in situ – so-called dynamic testing – which can reveal problems in th ...
... These are all examples of static testing of motor insulation – where the motor is disconnected from its power source and tested separately. This identifies problems within the motor. However, motors can also be electrically tested in situ – so-called dynamic testing – which can reveal problems in th ...
magnetic aluminum metal and its industrial application
... squrriel-cage asynchronous motors use approximately 70% of this energy. In this context, energy consumption takes 97% proportion of its life cycle costs. As a result of this situation, enviromentally designs should be made for electric motors. According to analysis of electric motor losses, there ar ...
... squrriel-cage asynchronous motors use approximately 70% of this energy. In this context, energy consumption takes 97% proportion of its life cycle costs. As a result of this situation, enviromentally designs should be made for electric motors. According to analysis of electric motor losses, there ar ...
IV. Basic concept of a torque estimation
... In the last fifty-sixty years AC wound motors have been widely used in many industrial tasks, such as material handling systems, pipe and paper mills, steel and rolling mills, container loading/unloading cranes, power plants, engineering workshops, etc. In the beginning, the control of these drives ...
... In the last fifty-sixty years AC wound motors have been widely used in many industrial tasks, such as material handling systems, pipe and paper mills, steel and rolling mills, container loading/unloading cranes, power plants, engineering workshops, etc. In the beginning, the control of these drives ...
DC Drive Selection Guide
... The KBMG Series of DC Drives consist of two models rated for 1/100 to 2 horsepower motors. This chassis ultra-compact, full-wave regenerative drive is capable of operating DC PM or Shunt motors in a bidirectional mode. Its 4-quadrant operation provides forward and reverse torque in both speed direct ...
... The KBMG Series of DC Drives consist of two models rated for 1/100 to 2 horsepower motors. This chassis ultra-compact, full-wave regenerative drive is capable of operating DC PM or Shunt motors in a bidirectional mode. Its 4-quadrant operation provides forward and reverse torque in both speed direct ...
Generic Service Preso
... speed will increase to Point B (see High Static Pressure Curve, blue line). This increase in speed occurs when any blower––whether equipped with an ECM or AC induction motor––encounters an increase in static pressure. The reason is that the clogged filter restricts airflow in the system meaning ther ...
... speed will increase to Point B (see High Static Pressure Curve, blue line). This increase in speed occurs when any blower––whether equipped with an ECM or AC induction motor––encounters an increase in static pressure. The reason is that the clogged filter restricts airflow in the system meaning ther ...
WARD LEONARD CONTROL SYSTEM
... Also the rheostat control of series motor was inefficient. It was also tried to apply a variable-ratio transmission in street-cars to achieve better efficiency at starting and at low speeds but those attempts ended up in failure. ...
... Also the rheostat control of series motor was inefficient. It was also tried to apply a variable-ratio transmission in street-cars to achieve better efficiency at starting and at low speeds but those attempts ended up in failure. ...
DES 70/10 Operating Instructions
... The latest edition of these operating instructions, additional documentation and software to the DES 70/10 may also be found on the Internet under www.maxonmotor.com category «Service & Downloads», Order number 228597. This document is valid for the HardwareVersion 4102. ...
... The latest edition of these operating instructions, additional documentation and software to the DES 70/10 may also be found on the Internet under www.maxonmotor.com category «Service & Downloads», Order number 228597. This document is valid for the HardwareVersion 4102. ...
Series 2330MKII Single-Phase Adjustable
... 100,000 amperes short-circuit current. Short-circuit current can be limited by using an input supply transformer of 50 KVA or less, or by using correctly sized current limiting fuses in the supply line ahead of the controller. Do not use a transformer with less than the minimum transformer KVA liste ...
... 100,000 amperes short-circuit current. Short-circuit current can be limited by using an input supply transformer of 50 KVA or less, or by using correctly sized current limiting fuses in the supply line ahead of the controller. Do not use a transformer with less than the minimum transformer KVA liste ...
stepper motor drive considerations, common
... current losses. The latter group of parasitic losses generally increases with increased ripple currents and frequency. Chopping techniques that have a high ripple current will have higher losses in the motor. Enable or two phase chopping will cause higher losses in the motor with the effect of raisi ...
... current losses. The latter group of parasitic losses generally increases with increased ripple currents and frequency. Chopping techniques that have a high ripple current will have higher losses in the motor. Enable or two phase chopping will cause higher losses in the motor with the effect of raisi ...
BTPWE 504 Electrical Machines II
... generating an induced EMF, as the mechanical input causes the rotor to turn. The rotating magnetic field induces an AC voltage in the stator windings. Often there are three sets of stator windings, physically offset so that the rotating magnetic field produces three phase currents, displaced by one- ...
... generating an induced EMF, as the mechanical input causes the rotor to turn. The rotating magnetic field induces an AC voltage in the stator windings. Often there are three sets of stator windings, physically offset so that the rotating magnetic field produces three phase currents, displaced by one- ...
DEE 403 Electrical Machines II
... generating an induced EMF, as the mechanical input causes the rotor to turn. The rotating magnetic field induces an AC voltage in the stator windings. Often there are three sets of stator windings, physically offset so that the rotating magnetic field produces three phase currents, displaced by one- ...
... generating an induced EMF, as the mechanical input causes the rotor to turn. The rotating magnetic field induces an AC voltage in the stator windings. Often there are three sets of stator windings, physically offset so that the rotating magnetic field produces three phase currents, displaced by one- ...
Electric motor
An electric motor is an electrical machine that converts electrical energy into mechanical energy. The reverse of this would be the conversion of mechanical energy into electrical energy and is done by an electric generator.In normal motoring mode, most electric motors operate through the interaction between an electric motor's magnetic field and winding currents to generate force within the motor. In certain applications, such as in the transportation industry with traction motors, electric motors can operate in both motoring and generating or braking modes to also produce electrical energy from mechanical energy.Found in applications as diverse as industrial fans, blowers and pumps, machine tools, household appliances, power tools, and disk drives, electric motors can be powered by direct current (DC) sources, such as from batteries, motor vehicles or rectifiers, or by alternating current (AC) sources, such as from the power grid, inverters or generators. Small motors may be found in electric watches. General-purpose motors with highly standardized dimensions and characteristics provide convenient mechanical power for industrial use. The largest of electric motors are used for ship propulsion, pipeline compression and pumped-storage applications with ratings reaching 100 megawatts. Electric motors may be classified by electric power source type, internal construction, application, type of motion output, and so on.Electric motors are used to produce linear or rotary force (torque), and should be distinguished from devices such as magnetic solenoids and loudspeakers that convert electricity into motion but do not generate usable mechanical powers, which are respectively referred to as actuators and transducers.