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SpinMaster - Marathon Electric
SpinMaster - Marathon Electric

... REGAL-BELOIT’s SpinMaster™ AC drive is designed for the most demanding industrial applications from fans and pumps to conveyors and packaging equipment. The SpinMaster™ AC drive offers superior performance with smooth acceleration and deceleration, multiple presets, digital accuracy along with easy ...
DY23743747
DY23743747

... sensor cable. Speed estimation schemes that allow high dynamic performances are based on vector control of induction machines. A more sophisticated approach using a space vector PWM instead of the natural PWM technique [2] is known to provide lower energy consumption and improved transient responses ...
mosfet based boost converter
mosfet based boost converter

... A Boost DC-DC converter is essentially a step up chopper for which the average output voltage is higher than the input voltage. Hence the name is boost. The circuit operation can be divided into 2 modes Mode 1 begins when MOSFET is switched on at t=0. The input current, which rises flows through fil ...
The PTO-generator - Publikationsdatenbank der TU Wien
The PTO-generator - Publikationsdatenbank der TU Wien

... magnet synchronous motors in closed loop mode. Furthermore it is also possible to apply AC-Voltage, 3x400 V and 1x230 V, to use external electrical appliances. These four types are described and measurements are presented. Besides the possibility for constant DC link voltage independent of the PTO r ...
FAN6300 Highly Integrated Quasi
FAN6300 Highly Integrated Quasi

EUP2644  TFT LCD DC-DC Converter with Integrated LDO, OP-AMP and GPM Switch
EUP2644 TFT LCD DC-DC Converter with Integrated LDO, OP-AMP and GPM Switch

... allowing the use of small inductors and capacitors. The step up converter uses fixed-frequency, current mode control architecture which provides fast load-transient response and easy compensation. A 3.3A peak current limit for the internal switch protects power supply fault condition. The GPM provid ...
CIRCUIT DIAGRAM Existing System
CIRCUIT DIAGRAM Existing System

SMM.12000 - Power-Plex
SMM.12000 - Power-Plex

... 47 – 63 Hz ...
ET 9
ET 9

EE 340 – Fall 2007 Homework-1 (80 points) Solve following
EE 340 – Fall 2007 Homework-1 (80 points) Solve following

... A full power, the motor draws 2.5 kW at 75% power factor lag. The circuit is protected by a 15 A circuit breaker. The customer wants to connect an extra load (rated at 240 V, 1 kW, PF = 100%) to the same circuit that serves the pool pump. a) Will he be able to do so? Explain. b) Calculate the minimu ...
A BL-CSC Converter-Fed BLDC Motor Drive With Power Factor
A BL-CSC Converter-Fed BLDC Motor Drive With Power Factor

... sensor. The speed of the BLDC motor is controlled by varying the dc bus voltage of the voltage source inverter (VSI) feeding the BLDC motor via a PFC converter. Therefore, the BLDC motor is electronically commutated such that the VSI operates in fundamental frequency switching for reduced switching ...
BMPI Series
BMPI Series

... protection and power quality for any type of load, especially industrial applications, manufacturing and petrochemical processes, electrical distribution and power plants. BMPI is an On-line double conversion UPS (VFI SS 111 - IEC EN 62040-3) with input and inverter transformers. ...
A NOVEL THREE-PHASE TO FIVE
A NOVEL THREE-PHASE TO FIVE

... The first five-phase induction motor drive system was proposed in the late 1970s for adjustable speed drive applications. Since then, a considerable research effort has been in place to develop commercially feasible multiphase drive Systems .Multiphase (more than three phase) systems are the focus o ...
Transducer types
Transducer types

... Brushed motor – permanent magnets on armature, rotor acts as electromagnet Brushless motor – permanent magnet on the rotor, electromagnets on armature are switched ...
CA‐NLH‐012  Holyrood Blackstart Diesel Units Application  Page 1 of 1 Q. 
CA‐NLH‐012  Holyrood Blackstart Diesel Units Application  Page 1 of 1 Q. 

POWER QUALITY -- An Indian Perspective
POWER QUALITY -- An Indian Perspective

LF230, LF230-S Spring return actuators 4 Nm
LF230, LF230-S Spring return actuators 4 Nm

Induction Motor - UTK-EECS
Induction Motor - UTK-EECS

... Plot Power factor versus output power. Plot AC line current versus output power. Plot efficiency versus output power. Compare the measured results with the calculated results. Comment on the wisdom of buying an induction motor having a significantly greater horse power rating than is required to do ...
HW12 Solutions
HW12 Solutions

... the speed is 150 rad/sec. The source voltage and the thyristor firing time is shown in the figure below. (a) Draw this circuit, including the rectifier and the motor. (b) What is the effective DC voltage at the motor armature terminals under this condition ? (c) What is the peak value of the square ...
T240 Autotransformer Rev A.indd
T240 Autotransformer Rev A.indd

... 4!UTOTRANSFORMER 6!#!UTOTRANSFORMER ...
protection
protection

... smoothing circuit, that are used in traditional AC drive ...
Ecosystem for Optimizing Energy Efficiency in Factory Production
Ecosystem for Optimizing Energy Efficiency in Factory Production

... All of the above motors are used in industry, depending on power and application requirements, but the asynchronous induction motor is by far the most common by virtue of its simple construction and ease of use. Permanent magnet synchronous motors have a higher torque to weight ratio and the low ine ...
design, construction, and insulation test of a 15 millihenry inductor
design, construction, and insulation test of a 15 millihenry inductor

... Abstract Solid-state buck converters are popular for regulating output voltages of switch-mode dc power supplies for various applications. An output filter inductor in a buck converter is one of the crucial components to provide a continuous load current when the switching devices in the buck conver ...
Project Specification - ECE Senior Design
Project Specification - ECE Senior Design

Shrink wrapping machines [Wrapping machines]
Shrink wrapping machines [Wrapping machines]

... Harmonics can be avoided by installing an external "reactor". To decrease "harmonics", we recommend to install DC reactors in all our inverter models. (NOTE: 100V input models require AC reactors.) ...
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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.
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