Efficiency of an Electric Motor
... The electrical energy in a wire is stored in the electric field between the free electrons in the wire. An electric motor converts this energy to mechanical work, by using it to spin a shaft that can be attached to a large number of mechanical devices (such as the drive axle of a car). The electric ...
... The electrical energy in a wire is stored in the electric field between the free electrons in the wire. An electric motor converts this energy to mechanical work, by using it to spin a shaft that can be attached to a large number of mechanical devices (such as the drive axle of a car). The electric ...
UFC SERIES PwrKartTM 400 Hz AND 270 VDC
... Since its beginning in 1960, Unitron has specialized in the design and development of reliable, solid-state power systems. Through an innovative design, Built-In Test Equipment (BITE) and modular construction, Unitron products assure maximum power availability and minimal repair time for the latest ...
... Since its beginning in 1960, Unitron has specialized in the design and development of reliable, solid-state power systems. Through an innovative design, Built-In Test Equipment (BITE) and modular construction, Unitron products assure maximum power availability and minimal repair time for the latest ...
the supernova series is the latest technological novelty engineered
... THE SUPERNOVA SERIES HAS A SPECIAL AND INNOVATIVE COOLING SYSTEM (PATENT NR. 002589) WHERE THE COOLING FLUID IS CIRCULATING IN A SEALED CIRCUIT CHILLED BY REDUNDANT COOLING FANS. THIS INNOVATIVE FEATURE IS STUDIED TO ELIMINATE THE HEAT STRESS FROM THE POWER COMPONENTS FOR A BETTER UPS PERFORMANCE AN ...
... THE SUPERNOVA SERIES HAS A SPECIAL AND INNOVATIVE COOLING SYSTEM (PATENT NR. 002589) WHERE THE COOLING FLUID IS CIRCULATING IN A SEALED CIRCUIT CHILLED BY REDUNDANT COOLING FANS. THIS INNOVATIVE FEATURE IS STUDIED TO ELIMINATE THE HEAT STRESS FROM THE POWER COMPONENTS FOR A BETTER UPS PERFORMANCE AN ...
CT-CATVPS60/90 CATV Power Supply 60/90VAC, 15A
... The CableTronix CT-CATVPS60/90 is a CATV power supply designed to provide conditioned power to remote active devices over a hardline CATV cable distribution plant. This unit is designed to work with either 120VAC or 220VAC input voltages with a 60VAC or 90VAC selectable output. The enclosure is buil ...
... The CableTronix CT-CATVPS60/90 is a CATV power supply designed to provide conditioned power to remote active devices over a hardline CATV cable distribution plant. This unit is designed to work with either 120VAC or 220VAC input voltages with a 60VAC or 90VAC selectable output. The enclosure is buil ...
dc drive for universal motor
... Abstract: Universal motors are usually operated in AC mode and are controlled by means of triacs. This conventional solution is characterized by a cheap control hardware. On the other hand, it has some drawbacks. In particular the high peak to peak current gives poor motor efficiency and the consequ ...
... Abstract: Universal motors are usually operated in AC mode and are controlled by means of triacs. This conventional solution is characterized by a cheap control hardware. On the other hand, it has some drawbacks. In particular the high peak to peak current gives poor motor efficiency and the consequ ...
Post Glover Dynamic Braking Resistors
... A three-phase variable frequency drive (VFD) consists of three basic components – rectifier, DC line, and inverter – and a control system to manage these three components as illustrated. The rectifier converts the three-phase 60Hz AC input to a DC signal. Depending on the system, an inductor, a capa ...
... A three-phase variable frequency drive (VFD) consists of three basic components – rectifier, DC line, and inverter – and a control system to manage these three components as illustrated. The rectifier converts the three-phase 60Hz AC input to a DC signal. Depending on the system, an inductor, a capa ...
GE Aware Switchpack
... The switchpack has two main components; a transformer and a high current relay. The transformer has a primary high voltage input and a low voltage output. The low voltage output, 15 VDC provides operating power to low voltage GE AwareTM occupancy sensors. When a occupancy sensor detects motion, it e ...
... The switchpack has two main components; a transformer and a high current relay. The transformer has a primary high voltage input and a low voltage output. The low voltage output, 15 VDC provides operating power to low voltage GE AwareTM occupancy sensors. When a occupancy sensor detects motion, it e ...
Tens kilowatts power supply based on half
... The main features of the full-bridge serial resonant inverters are: - partial charge of the capacitive storage device with the little energy doses which are supplied at the frequency of dozen kilohertz; - application of the step-up transformer leakage inductance together with the additional capa ...
... The main features of the full-bridge serial resonant inverters are: - partial charge of the capacitive storage device with the little energy doses which are supplied at the frequency of dozen kilohertz; - application of the step-up transformer leakage inductance together with the additional capa ...
Bus Voltage Degradation - Trans-Coil
... capacitance. This design philosophy neglects the impact of insertion loss on the performance of the VFD. An evaluation of the application of passive harmonic filters applied to the input of Variable Frequency Drives (VFD) was performed by TCI engineering. The specific focus of the testing was the ef ...
... capacitance. This design philosophy neglects the impact of insertion loss on the performance of the VFD. An evaluation of the application of passive harmonic filters applied to the input of Variable Frequency Drives (VFD) was performed by TCI engineering. The specific focus of the testing was the ef ...
... DBR followed by a power factor corrected (PFC) converter is utilized for improving the power quality at ac mains. Many topologies of the single-stage PFC converter are reported in the literature which has gained importance because of high efficiency as compared to two-stage PFC converters due to low ...
Motor Basics - PAControl.com
... Capacitor Start Motor • Larger single phase motors up to about 10 Hp. • A split phase motor with the addition of a capacitor in the starting winding. • Capacitor sized for high starting torque. ...
... Capacitor Start Motor • Larger single phase motors up to about 10 Hp. • A split phase motor with the addition of a capacitor in the starting winding. • Capacitor sized for high starting torque. ...
Actuators
... - remote control that produces an infrared signal to control stereo/TV operation - motors: used to transform electrical signals into mechanical motion • Actuator interfacing issues: - physical principles - interface electronics - power amplification - “advanced D/A conversion”: How to generate an an ...
... - remote control that produces an infrared signal to control stereo/TV operation - motors: used to transform electrical signals into mechanical motion • Actuator interfacing issues: - physical principles - interface electronics - power amplification - “advanced D/A conversion”: How to generate an an ...
Poster - Senior Design
... In 2008 President Geoffrey introduced the Live Green Program which called for environmentally conscious living. In light of this initiative, it was decided to actively assemble a wind turbine that would supply power to Coover hall and reduce our carbon footprint. The previous group was able to purch ...
... In 2008 President Geoffrey introduced the Live Green Program which called for environmentally conscious living. In light of this initiative, it was decided to actively assemble a wind turbine that would supply power to Coover hall and reduce our carbon footprint. The previous group was able to purch ...
Glossary of Terms
... a computer to decrease the delay between the input and output of a system. Limits Properly designed motion control systems have sensors called limits that alert the control electronics that the physical end of travel is being approached and that motion should stop. Logic Ground An electrical potenti ...
... a computer to decrease the delay between the input and output of a system. Limits Properly designed motion control systems have sensors called limits that alert the control electronics that the physical end of travel is being approached and that motion should stop. Logic Ground An electrical potenti ...
FAILURE TRENDS OF THE MAIN
... 1) The traction system which do not involve the use of electricity at any stage and called as non-electric tractions system such as steam engine drive, IC engine drive etc. 2) The tractions system which involves the use of electricity at some stage and called as electric tractions. System such a die ...
... 1) The traction system which do not involve the use of electricity at any stage and called as non-electric tractions system such as steam engine drive, IC engine drive etc. 2) The tractions system which involves the use of electricity at some stage and called as electric tractions. System such a die ...
January 15, 2008
... Received Parts • Servo Tester – Astro Servo Tester PN 105 – Servo signal adjusts between low and high throttle (1ms and 2 ms) – Places a test load of 500 mA on BEC circuit ...
... Received Parts • Servo Tester – Astro Servo Tester PN 105 – Servo signal adjusts between low and high throttle (1ms and 2 ms) – Places a test load of 500 mA on BEC circuit ...
Variable-frequency drive
A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.