DC Machines
... possible to pole pitch to ensure voltage summation around the coil. On the other hand, to obtain a reasonable value of collected voltage, the coils are connected in series maintaining that their voltages are in the same sense. This is achieved in two alternative methods of windings; namely, Lap and ...
... possible to pole pitch to ensure voltage summation around the coil. On the other hand, to obtain a reasonable value of collected voltage, the coils are connected in series maintaining that their voltages are in the same sense. This is achieved in two alternative methods of windings; namely, Lap and ...
Generic Service Preso
... Without 24VAC from the low voltage transformer present at pin 12 of the ECM, the motor will not respond correctly to most of the control functions; specifically, “O”, “Y1”, “Y/Y2”. It is important that in all systems depending on these inputs that “R” be connected to pin 12 of the ECM. The “Analyzer ...
... Without 24VAC from the low voltage transformer present at pin 12 of the ECM, the motor will not respond correctly to most of the control functions; specifically, “O”, “Y1”, “Y/Y2”. It is important that in all systems depending on these inputs that “R” be connected to pin 12 of the ECM. The “Analyzer ...
Softstarter Handbook
... current and torque and the variation can be really large between different manufacturers for the same power rating. When using a softstarter it is good if the motor has a high starting torque at Direct-on-line (DOL) start. When these motors are used together with a softstarter it is possible to redu ...
... current and torque and the variation can be really large between different manufacturers for the same power rating. When using a softstarter it is good if the motor has a high starting torque at Direct-on-line (DOL) start. When these motors are used together with a softstarter it is possible to redu ...
Technical Note - Copley Controls
... In a transient condition, the motor can tolerate a certain amount of energy in excess of the continuous limit. The amount of overload energy the motor can handle is dependent on the motor size, cooling methods and configuration. For a given motor with winding resistance RL the energy dissipated in e ...
... In a transient condition, the motor can tolerate a certain amount of energy in excess of the continuous limit. The amount of overload energy the motor can handle is dependent on the motor size, cooling methods and configuration. For a given motor with winding resistance RL the energy dissipated in e ...
NO OUTPUT (ALL GENERATORS)
... There should not be continuity between these two sets of leads. 11. Remove stator/shell assembly. 12. Unbolt the diode(s) from mounting bracket or the fan on rotor. 13. Check diode(s) with an ohm meter. Most meters use a special setting for testing a diode. If your meter does not have special settin ...
... There should not be continuity between these two sets of leads. 11. Remove stator/shell assembly. 12. Unbolt the diode(s) from mounting bracket or the fan on rotor. 13. Check diode(s) with an ohm meter. Most meters use a special setting for testing a diode. If your meter does not have special settin ...
Evaluation of a Radial Flux Air-cored Permanent Magnet Machine
... Due to finite oil resources and its political and economical impact, a renewed interest in energy independence has compelled industry and government to pursue electric vehicle designs. The current worldwide research that is being conducted on drivetrain topologies for EVs, focus mainly on direct in-w ...
... Due to finite oil resources and its political and economical impact, a renewed interest in energy independence has compelled industry and government to pursue electric vehicle designs. The current worldwide research that is being conducted on drivetrain topologies for EVs, focus mainly on direct in-w ...
ELECTRICIAN_New_Syll
... materials. Para & Diamagnetism and Ferro magnetic materials. Principle of electro-magnetism, Maxwell’s corkscrew rule, Fleming’s left & right hand rules, Magnetic field of current carrying Demonstration on effect of conductors, loop & solenoid. eddy current on different MMF, Flux density, reluctance ...
... materials. Para & Diamagnetism and Ferro magnetic materials. Principle of electro-magnetism, Maxwell’s corkscrew rule, Fleming’s left & right hand rules, Magnetic field of current carrying Demonstration on effect of conductors, loop & solenoid. eddy current on different MMF, Flux density, reluctance ...
The Physics of Armature-Reaction
... of coolant-medium actually used, for those ready to pounce). Each structure carries windings that are linked by a mutual flux crossing the air-gap, and as a result a generated-emf is produced in the stator. Current in the rotor field-coils produce a rotating magnetic-field called field-flux. Current ...
... of coolant-medium actually used, for those ready to pounce). Each structure carries windings that are linked by a mutual flux crossing the air-gap, and as a result a generated-emf is produced in the stator. Current in the rotor field-coils produce a rotating magnetic-field called field-flux. Current ...
ABB drives - Technical guide No. 5 - Bearing currents in modern AC
... over the bearing. In the case of high frequency bearing currents, this voltage can be generated in three different ways. The most important factors that define which mechanism is prominent, are the size of the motor and how the motor frame and shaft are grounded. The electrical installation, meaning ...
... over the bearing. In the case of high frequency bearing currents, this voltage can be generated in three different ways. The most important factors that define which mechanism is prominent, are the size of the motor and how the motor frame and shaft are grounded. The electrical installation, meaning ...
taylor3
... Steering gears can be arranged with hydraulic control equipment known as a 'telemotor', or with electrical control equipment. The power unit may in turn be hydraulic or electrically operated. Each of these units will be considered in turn, with the hydraulic unit pump being considered first. A pump ...
... Steering gears can be arranged with hydraulic control equipment known as a 'telemotor', or with electrical control equipment. The power unit may in turn be hydraulic or electrically operated. Each of these units will be considered in turn, with the hydraulic unit pump being considered first. A pump ...
Lecuture-44
... Lecuture-44 Design of stator winding Stator winding is made up of former wound coils of high conductivity copper of diamond shape. These windings must be properly arranged such that the induced emf in all the phases of the coils must have the same magnitude and frequency. These emfs must have same w ...
... Lecuture-44 Design of stator winding Stator winding is made up of former wound coils of high conductivity copper of diamond shape. These windings must be properly arranged such that the induced emf in all the phases of the coils must have the same magnitude and frequency. These emfs must have same w ...
Grundfos Instructions - SP4” 4-Inch Stainless Steel Submersible
... connected box is other than grounded metal conduit, ground the pump back to the service by connecting a copper conductor (at least the size of the circuit supplying the pump) to the grounding screw provided within the wiring compartment. Verification of the electrical supply should be made to ensure ...
... connected box is other than grounded metal conduit, ground the pump back to the service by connecting a copper conductor (at least the size of the circuit supplying the pump) to the grounding screw provided within the wiring compartment. Verification of the electrical supply should be made to ensure ...
SHURflo Close-Coupled Electric Motor
... away from ventilation and other openings. Do not insert any objects into the motor. 20. Do not touch an operating motor. Modern motors are designed to operate at high temperatures. 21. Disconnect power before servicing a motor or its load. If the power disconnect is out of sight, lock it in the open ...
... away from ventilation and other openings. Do not insert any objects into the motor. 20. Do not touch an operating motor. Modern motors are designed to operate at high temperatures. 21. Disconnect power before servicing a motor or its load. If the power disconnect is out of sight, lock it in the open ...
A Study of De-Excitation after Abrupt 3
... and d,q axis stator current id ,iq during rated voltage building up, 3-phase short circuit at t1=46” and de-excitation at t2=48” of 700Mw generator. Fig.3C shows variation of d axis mutual inductance Lad’ during that period. It is a constant 0.803H in first section, then decreases in saturation sect ...
... and d,q axis stator current id ,iq during rated voltage building up, 3-phase short circuit at t1=46” and de-excitation at t2=48” of 700Mw generator. Fig.3C shows variation of d axis mutual inductance Lad’ during that period. It is a constant 0.803H in first section, then decreases in saturation sect ...
K-475DV Instructions Manual
... FAUL TRELA Y SIGNAL TO COMPUTER AUTOLITE (D-), (B-), 0 DELCO (D+) AUTOLITE, DELCO, (D-), (B-), (31) LIGHT (FORD) LIGHT SIGNAL - NOT TRIO DO NOT CONNECT DIRECTLY TO BATTERY IGNITION TERMINAL CONNECTS TO BATTERY ...
... FAUL TRELA Y SIGNAL TO COMPUTER AUTOLITE (D-), (B-), 0 DELCO (D+) AUTOLITE, DELCO, (D-), (B-), (31) LIGHT (FORD) LIGHT SIGNAL - NOT TRIO DO NOT CONNECT DIRECTLY TO BATTERY IGNITION TERMINAL CONNECTS TO BATTERY ...
Technical Manual
... SMCI12 in a network Up to 254 (SMCI12) or 127 (SMCI12-3) stepper motor controllers can be controlled in a network from a PC or PLC. These network connections are set up via the RS485/CANopen interface. Two-wire operation RS485 To enable RS485 two-wire transmission capability, all bus stations must h ...
... SMCI12 in a network Up to 254 (SMCI12) or 127 (SMCI12-3) stepper motor controllers can be controlled in a network from a PC or PLC. These network connections are set up via the RS485/CANopen interface. Two-wire operation RS485 To enable RS485 two-wire transmission capability, all bus stations must h ...
101 basics series starters and contactors
... placed on the motor. A motor is designed to run at a certain speed, called its synchronous speed. If the load on the motor increases, the motor draws more current to continue running at its synchronous speed. It is quite possible to put so much load on a motor that it will draw more and more current ...
... placed on the motor. A motor is designed to run at a certain speed, called its synchronous speed. If the load on the motor increases, the motor draws more current to continue running at its synchronous speed. It is quite possible to put so much load on a motor that it will draw more and more current ...
An Analytical Approach to Solving Motor
... stator field as needed to create the necessary torque for the load. When the high point of the rotor (point of minimum air gap) aligns with the high point (maximum) of the stator flux, the force will be a maximum, and then it will decrease, becoming small under a point of minimum flux. Thus, an unba ...
... stator field as needed to create the necessary torque for the load. When the high point of the rotor (point of minimum air gap) aligns with the high point (maximum) of the stator flux, the force will be a maximum, and then it will decrease, becoming small under a point of minimum flux. Thus, an unba ...
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.