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IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

ZZ013748752
ZZ013748752

... multiple-phase short circuits, which leads to high currents. The high current results in a voltage drop over the network impedance. At the fault location the voltage in the faulted phases drops close to zero, whereas in the non-faulted phases it remains more or less unchanged. Voltage sags are one o ...
JV2216521658
JV2216521658

... them. By introducing permanent magnets buried beneath the squirrel cage, a hybrid motor is obtained which combines an asynchronous start with a synchronous steady state operation. With really low copper losses at steady state ( harmonic losses only ), a better efficiency can be reached. Synchronous ...
Application Note GaAs MMIC Based Control Components with Integral Drivers  Introduction
Application Note GaAs MMIC Based Control Components with Integral Drivers Introduction

... a resistance region where a significant portion of the incident power will be dissipated. This can easily lead to damage. ...
the simplified theory and design of a current source inverter for ac
the simplified theory and design of a current source inverter for ac

... for constructing the Park-vectors of the state variables can easily be determined, with any load of the drive in such a frequency range where the neglection of the statorresistance is permitted. By means of the Park-vectors, the instantaneous values of the state variables can simply be obtained, and ...
Grid-Connection Control and Simulation of PMSG Wind Power
Grid-Connection Control and Simulation of PMSG Wind Power

Special Equipment - newton trasformatori
Special Equipment - newton trasformatori

... Step regulating glass furnaces Transformers & Melting furnaces Transformers These transformers are especially designed to supply electrical power to many kind of furnaces; they are equipped by several secondary sockets to make adjustable the supplying of power to the furnace. With these regulating t ...
4 INPUTS, 2 OUTPUTS SERVO VALVE CONTROLLER
4 INPUTS, 2 OUTPUTS SERVO VALVE CONTROLLER

Data sheet
Data sheet

... CleenSweeprange ...
DC/DC Converter
DC/DC Converter

... 2. The max. capacitive load should be tested within the input voltage range and under full load conditions; 3. If the product needs to be cleaned after welding, please wait to completely dried before electrical use it; 4. Unless otherwise specified, parameters in this datasheet were measured under t ...
4 ES46 LINEAR IC`s AND APPLICATIONS
4 ES46 LINEAR IC`s AND APPLICATIONS

... OR Explain the operation o f an inverting Schmitt trigger circuit with different UTP and LTP voltages with the help of suitable c irc u it. Discuss the design procedure for components used. Also indicate the input and output characteristics for the inverting Schmitt trigger circuits. Design a second ...
P10 and P11 Walkthrough P10 Electrical and Electronic Principles
P10 and P11 Walkthrough P10 Electrical and Electronic Principles

... Vpeak is the maximum value of the sine wave sin is of course sin on your calculator ω (omega) represents 2π x the frequency of the sine wave t represents the time elapsed φ represents phase (up to 90® before or after t = 0) So a quick word about phase. As long as a sine wave is applied to a circuit ...
SLC-600-1200-1800 230V, 60Hz
SLC-600-1200-1800 230V, 60Hz

... auto-transformer, which provides four levels of line regulation: two boost-stage and one buck-stage. Even when the input voltage varies between 150 – 280V, the output is regulated to within 200 and 250V, well within the range of most equipment. SLc operation is monitored by four status LEDs, indicat ...
PRESS RELEASE
PRESS RELEASE

... Silicon Carbide Power MOSFETs. The LD00KM is capable of switching loads up to 270Vdc, 10A and features a low ON resistance (reduced cooling requirements). These relays increase power density using existing design platforms and meet 270Vdc system requirements of MIL-STD-704. The LD00KM is optically i ...
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OSI

... OSI SUBMETERING WATT/WATTHOUR AC TRANSDUCER ...
Series and Parallel Circuits 1 - Instructor Outline
Series and Parallel Circuits 1 - Instructor Outline

... Exploration stage: 50 minutes – Group Lab-Work The students build a simple circuit and measure voltage and current. They observe that current is the same throughout the circuit, but that voltage depends on the enclosed components. The students then build a two-bulb circuit and measure voltage and cu ...
Design and construction of a polygon
Design and construction of a polygon

... In contrast, the autotransformer-based configurations [4] reduce the ratings of magnetic parts. This is true because of the fact that in this topology, only a portion of KVA rating of the induction motor should be beard by the magnetic coupling parts. Therefore, autotransformer-based configurations ...
Aalborg Universitet Power Generation System
Aalborg Universitet Power Generation System

... by voltage oriented control(VOC) with proportional resonant controller and current with phase locked loop(PLL) in the stationary frame[11]. It can be obtained by following three steps. The current is oriented along the active voltage which is socalled voltage oriented control. The PLL is used to det ...
ST4460FX
ST4460FX

... ST4460FX High voltage fast-switching NPN Power transistor ...
PDF Version(123KB)
PDF Version(123KB)

... The New Dual HVIGBT module will satisfy demand for efficient, high power density semiconductor devices with a range of current and voltage ratings, while contributing to higher power output and efficiency in inverters by adopting the latest seventh-generation IGBTs and RFC diodes. Meanwhile, the sta ...
WECC-0100 RS Update_020614
WECC-0100 RS Update_020614

... – Apply PRC-024 generator LVRT curve to generator busses to ensure resources stay connected for planning contingencies – Apply PRC-024 generator LVRT curve to generator and load busses to demonstrate acceptable performance, evaluate risk – Apply PRC-024 generator LVRT curve to generator busses and s ...
ppt - EECS
ppt - EECS

... SPICE originally required a text based input. Remember punch cards anyone? Now, the graphical capture front end automatically creates the necessary node and command lists. Listing here is from the simple linear supply design. Each circuit node in your design is automatically numbered and can be rena ...
IOSR Journal of Electrical and Electronics Engineering (IOSRJEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSRJEEE)

File Type pdf Y 3030 quick Y
File Type pdf Y 3030 quick Y

... is capable of a new task and application. The HI 3030 weight controller keypad has tare and zero buttons. A HI 3010 filler dispenser keypad will have start and stop buttons. The HI 3030 can have four scale systems installed and use Integrated Technician. The same card A/D in a HI 3010 will control a ...
K A CTION P AP4570
K A CTION P AP4570

... Model AP4570 is useful in capturing DC-input signals to be held for further processing or signal-conditioning. Typical applications include monitoring peak electrical or energy demands, capturing process conditions such as flow rates, equipment protection and taring to factor out unwanted dead weigh ...
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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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