For Bodine`s Handbook on small motors, gearmotors
... The windings in an electric motor consist of many turns of copper wires. Although copper is an excellent conductor, the substantial total length of wire required in the windings results in measurable power loss because the resistance of a wire increases with its length. This I2R loss in the motor is ...
... The windings in an electric motor consist of many turns of copper wires. Although copper is an excellent conductor, the substantial total length of wire required in the windings results in measurable power loss because the resistance of a wire increases with its length. This I2R loss in the motor is ...
GE PowerPoint Template
... Process Interlocking Examples ON START Centrifugal blower/fan no airflow alarm delayed on start up until static and friction head pressure is established against ductwork by using “start override” delay DURING RUN Cryogenic fluid flashes at intervals in a positive displacement pump causing cavitati ...
... Process Interlocking Examples ON START Centrifugal blower/fan no airflow alarm delayed on start up until static and friction head pressure is established against ductwork by using “start override” delay DURING RUN Cryogenic fluid flashes at intervals in a positive displacement pump causing cavitati ...
Document
... locomotive. The power for these motors is obtained from 72+1 V control voltage fed by aux. generator/voltage regulator or from 64V battery. The DC motor requires excessive maintenance because of commutation and the reliability is also very poor. 0.2 This specification is intended to serve as a guide ...
... locomotive. The power for these motors is obtained from 72+1 V control voltage fed by aux. generator/voltage regulator or from 64V battery. The DC motor requires excessive maintenance because of commutation and the reliability is also very poor. 0.2 This specification is intended to serve as a guide ...
SPM Synchronous Motor Protection and Control
... GE Digital Energy’s Quality Management System is registered to ISO9001:2008 QMI # 005094 UL # A3775 ...
... GE Digital Energy’s Quality Management System is registered to ISO9001:2008 QMI # 005094 UL # A3775 ...
Optidrive E2 Single Phase Output User Guide
... other than electrical, which if not avoided, could result possible injury or death. in damage to property. This variable speed drive product (Optidrive) is intended for professional incorporation into complete equipment or systems as part of a fixed installation. If installed incorrectly it may pres ...
... other than electrical, which if not avoided, could result possible injury or death. in damage to property. This variable speed drive product (Optidrive) is intended for professional incorporation into complete equipment or systems as part of a fixed installation. If installed incorrectly it may pres ...
SPM Synchronous Motor Protection and Control
... 10.10 EXCITER / FIELD CURRENT METERING TEST 10.10.1 SETUP ............................................................................................................10-10 10.10.2 RELAY PROGRAMMING ...............................................................................10-10 10.10.3 TEST..... ...
... 10.10 EXCITER / FIELD CURRENT METERING TEST 10.10.1 SETUP ............................................................................................................10-10 10.10.2 RELAY PROGRAMMING ...............................................................................10-10 10.10.3 TEST..... ...
Eurotherm 650 series manual
... 5 minutes for the dc link terminals (DC+ and DC-) to discharge to safe voltage levels (<60V). Measure the DC+ and DC- terminal voltage with a meter to confirm that the voltage is less than 50V. Never perform high voltage resistance checks on wiring without first disconnecting drive from the circuit ...
... 5 minutes for the dc link terminals (DC+ and DC-) to discharge to safe voltage levels (<60V). Measure the DC+ and DC- terminal voltage with a meter to confirm that the voltage is less than 50V. Never perform high voltage resistance checks on wiring without first disconnecting drive from the circuit ...
56- Electromagnetic suspension and levitation
... trackbound vehicle using newly developed BaF3 magnets (Polgreen 1968, 1971) in the repulsion mode. His was a model system consisting of blocks of barium ferrite magnets fixed to the underside of a vehicle with nylon rollers for guidance. Similar proposals, including one for high-speed travel across ...
... trackbound vehicle using newly developed BaF3 magnets (Polgreen 1968, 1971) in the repulsion mode. His was a model system consisting of blocks of barium ferrite magnets fixed to the underside of a vehicle with nylon rollers for guidance. Similar proposals, including one for high-speed travel across ...
650 Frame 1, 2, 3 Product Manual Ver 3.x
... 5 minutes for the dc link terminals (DC+ and DC-) to discharge to safe voltage levels (<60V). Measure the DC+ and DC- terminal voltage with a meter to confirm that the voltage is less than 50V. Never perform high voltage resistance checks on wiring without first disconnecting drive from the circuit ...
... 5 minutes for the dc link terminals (DC+ and DC-) to discharge to safe voltage levels (<60V). Measure the DC+ and DC- terminal voltage with a meter to confirm that the voltage is less than 50V. Never perform high voltage resistance checks on wiring without first disconnecting drive from the circuit ...
11. HOW TO DIAGNOSE THE TROUBLE
... sensors, PMV and other low-voltage circuits. The sensor leads and other wires are covered with insulated tubes for protection. Nevertheless, care must be taken to ensure that these wires are not pinched. Take sufficient care to avoid directly touching any of the circuit parts without first turning o ...
... sensors, PMV and other low-voltage circuits. The sensor leads and other wires are covered with insulated tubes for protection. Nevertheless, care must be taken to ensure that these wires are not pinched. Take sufficient care to avoid directly touching any of the circuit parts without first turning o ...
Basics of Control Components
... A typical control circuit includes a control load and one or more components that determine when the control load will be energized. Some control loads, such as relays and contactors, activate other devices, but other control loads, such as indicator lights, do not. For example, the following illust ...
... A typical control circuit includes a control load and one or more components that determine when the control load will be energized. Some control loads, such as relays and contactors, activate other devices, but other control loads, such as indicator lights, do not. For example, the following illust ...
20144109 Modeling and Control of Radial Force - Hori
... tude is very large. This leads to serious vibration although ...
... tude is very large. This leads to serious vibration although ...
L.M. Lorilla, T.A. Keim, J.H. Lang, and D.J. Perreault, “Topologies for Future Automotive Generators – Part I: Modeling and Analytics,” 2005 IEEE Vehicle Power and Propulsion Conference, October 2005, pp. 819-830.
... utilized with a diode bridge. The second set of optimizations will assume that these alternators are connected to a switched mode rectifier. We will then assess how much smaller and less expensive these alternators could be made given the availability of the switched-mode rectifier. This has not bee ...
... utilized with a diode bridge. The second set of optimizations will assume that these alternators are connected to a switched mode rectifier. We will then assess how much smaller and less expensive these alternators could be made given the availability of the switched-mode rectifier. This has not bee ...
manual - Berkeley Pumps
... Connect cable to motor controller and then wire controller to disconnect switch. Connect temporary jumper wire between proper terminals in controller to temporarily energize magnetic coil. Momentarily engage disconnect switch and note direction of rotation. The shaft should rotate counterclockwise w ...
... Connect cable to motor controller and then wire controller to disconnect switch. Connect temporary jumper wire between proper terminals in controller to temporarily energize magnetic coil. Momentarily engage disconnect switch and note direction of rotation. The shaft should rotate counterclockwise w ...
Current-Fed Inverters Voltage
... Two positive features of CSI inverters compared to VSI inverters: 1) CSI inverters are able to ride through a commutation failure and return naturally to normal operation; costly preventive measures used for VSI inverters. 2) CSI inverters can be switched to regenerative mode simply by reversing the ...
... Two positive features of CSI inverters compared to VSI inverters: 1) CSI inverters are able to ride through a commutation failure and return naturally to normal operation; costly preventive measures used for VSI inverters. 2) CSI inverters can be switched to regenerative mode simply by reversing the ...
BERNINA
... motor and the cable drum, carry dangerous voltage levels. For your own safety, print L-4200 should only be touched after about 30 seconds after the mains voltage has been switched off, which is the time required by the capacitors to discharge after the mains plug has been removed. Warning: The sewin ...
... motor and the cable drum, carry dangerous voltage levels. For your own safety, print L-4200 should only be touched after about 30 seconds after the mains voltage has been switched off, which is the time required by the capacitors to discharge after the mains plug has been removed. Warning: The sewin ...
ABB industrial drives ACS800, single drives, 0.75 to
... Free-standing drive, ACS800-U2 .................................................................................................. 14 Cabinet-built drive, ACS800-U7 ..................................................................................................... 16 Cabinet-built drive, ACS800-07. ...
... Free-standing drive, ACS800-U2 .................................................................................................. 14 Cabinet-built drive, ACS800-U7 ..................................................................................................... 16 Cabinet-built drive, ACS800-07. ...
![TOPIC: 291005 KNOWLEDGE: K1.01 [2.6/2.6]](http://s1.studyres.com/store/data/008853625_1-12ff57305cab4b87fb7ecfcd91d06eb8-300x300.png)
TOPIC: 291005 KNOWLEDGE: K1.01 [2.6/2.6]
... The cooling water system is being returned to service following maintenance on the pumps. Each pump is driven by an identical three-phase AC induction motor. Pump A was started five minutes ago to initiate flow in the cooling water system. Pump B is about to be started. When pump B is started, which ...
... The cooling water system is being returned to service following maintenance on the pumps. Each pump is driven by an identical three-phase AC induction motor. Pump A was started five minutes ago to initiate flow in the cooling water system. Pump B is about to be started. When pump B is started, which ...
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.