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Comparing Circuit Protection Technologies for 48 V DC in High
Comparing Circuit Protection Technologies for 48 V DC in High

... voltage is applied GDTs prevent damage from transient surges by acting as a “crowbar” or by approximating a short circuit to shunt surge energy, typically to ground ...
Commande Vectorielle Non Linéaire de L`onduleur MLI à
Commande Vectorielle Non Linéaire de L`onduleur MLI à

... The identification theory that we have used on shunt APF is known as instantaneous power theory, or PQ theory. It is based on instantaneous values in three-phase power systems with or without neutral wire, and is valid for steady-state or transitory operations, as well as for generic voltage and cur ...
DC059 - LTC1174 Evaluation Kit Quick Start Guide
DC059 - LTC1174 Evaluation Kit Quick Start Guide

... current comparator controls the output voltage in continuous mode. During the switch ON time, switch current flows through the 0.1Ω sense resistor. When this current reaches the threshold of the current comparator A2, its output signal will change state, setting the flip-flop and turning the switch ...
What’s in it for me?
What’s in it for me?

CO34543549
CO34543549

... supply. It is ideal to locate the generators at load centers. Because of economical and environmental reasons, the generating stations are usually located at remote locations. The Inter connection of generating stations and utilities improve the reliability with minimum generation resources. If the ...
SP-35X Signal Powered DC Volt Meter 3 1/2 Digit 0.48” LCD
SP-35X Signal Powered DC Volt Meter 3 1/2 Digit 0.48” LCD

... The SP-35X, when used with its companion meter SP-35XMV, is an elegant solution to the problem of measuring and displaying voltage and current in DC powered systems. To simplify the installation when used together, specify the stackable case option to mount both meters in a single cutout. Our custom ...
2STL1360
2STL1360

... time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the S ...
(b) DAC0808
(b) DAC0808

... yield a voltage output of 256 levels between 0 and b 4.980V. Floating pin 1 does not affect the converter speed or power dissipation. However, the value of the load resistor determines the switching time due to increased voltage swing. Values of RL up to 500X do not significantly affect performance, ...
3.0A, 150kHz, Step-Down Switching Regulator LM2596
3.0A, 150kHz, Step-Down Switching Regulator LM2596

... the LM2596 are offered by several different inductor manufacturers. Since the LM2596 converter is a switchmode power supply, its efficiency is significantly higher in comparison with popular three-terminal linear regulators, especially with higher input voltages. In many cases, the power dissipated ...
SCALE Driver
SCALE Driver

... otherwise latch-up of the integrated circuits LDI 00I can occur. Particular care must be taken when driving via cables or longer leads. The gate current must be limited to its maximum value by a gate resistor. At a load of 39nF in series with 5.6 : (typical load of a 1200V/100A IGBT). Maximum contin ...
Fpix_upgrade_power - Indico
Fpix_upgrade_power - Indico

... – May not be a problem with the new ROC. • Even if the DC-DC converter chip is remotely programmable it is not straightforward to establish a communication path. – Few spare cables in the power cable may be used for signaling but the other end of the cable is at the CAEN racks (X2F ...
CE33493496
CE33493496

Electrical Energy Saving with Improvement of Voltage and Current
Electrical Energy Saving with Improvement of Voltage and Current

... values, current-voltage harmonics up to 35th plus transitional effects. The collection of all necessary data involves power transformers, low and medium voltage General Panels, drawings of electrical installation with the length and the cross-section of all cables, position of supply sub-panels, nom ...
Real Time Voltage and Current Phase Shift Analyzer for Power
Real Time Voltage and Current Phase Shift Analyzer for Power

... relatively high number which led us to use external SRAM IC communicating over the SPI interface [9]. To simplify and speed up the process of reactive power evaluation, a hardware circuit (which can detect passage through the zero for voltage and current running) was added. By doing this, it is poss ...
installing, operating and maintaining the model d280 s
installing, operating and maintaining the model d280 s

... THE S-SHAPE CURVE BOARD SHOULD BE INSTALLED, ADJUSTED AND SERVICED BY QUALIFIED ELECTRICAL MAINTENANCE PERSONNEL FAMILIAR WITH THE CON STRUCTION AND OPERATION OF ALL EQUIPMENT IN THE ELEVATOR SYSTEM: PERSONAL INJURY AND/OR EQUIPMENT DAMAGE MAY OCCUR IF INDIVIDUALS ARE NOT FAMILIAR ...
Our Catalog
Our Catalog

... 1.) N+1 Redundant-Expandable Inverter System: For applications where reliability and maintainability are paramount, the N+1 redundant system offers the most cost effective method of achieving redundancy and the ability to maintain the system while loads remain on line. All cards (except 12 Vdc) are ...
PLL applications The phase-lock-loop
PLL applications The phase-lock-loop

Voltage Regulator
Voltage Regulator

Fundamental Theory of PMOS Low
Fundamental Theory of PMOS Low

Bus Edison High Speed Fuse Application
Bus Edison High Speed Fuse Application

... The non regenerative thyristor drive is widely used for variable speed control of motors. In these applications the coordination of fuses and semiconductors is often more critical than for rectifiers. The fuses are usually positioned in each arm of the bridge or the supply lines and will generally o ...
Utilization of power factor correction capacitors in circuits
Utilization of power factor correction capacitors in circuits

... factor correction. The purpose of these capacitors is to counteract inductive loading from devices such as electric motors and transmission lines. While individual motors may have capacitors for power factor correction, larger electrical distribution systems often have banks of capacitors that can b ...
AN1694: The Four Basic Building Blocks of an Op Amp
AN1694: The Four Basic Building Blocks of an Op Amp

RL Circuits
RL Circuits

... are usually constructed by winding a coil with wire. To increase the magnetic field inductors used for low frequencies often have the inside of the coil filled with magnetic material. (At high frequencies such coils can be too lossy.) Inductors are the least perfect of the basic circuit elements due ...
EET 251 Unit 2
EET 251 Unit 2

Complete Paper
Complete Paper

... Large interconnected power systems provide power to the community at large for the optimum utilization of the available power sources. However, due to the non availability of sufficient funds, constraints on the right way of providing additional transmission lines and rapid growth in load result in ...
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Islanding

Islanding refers to the condition in which a distributed generator (DG) continues to power a location even though electrical grid power from the electric utility is no longer present. Islanding can be dangerous to utility workers, who may not realize that a circuit is still powered, and it may prevent automatic re-connection of devices. For that reason, distributed generators must detect islanding and immediately stop producing power; this is referred to as anti-islanding.The common example of islanding is a grid supply line that has solar panels attached to it. In the case of a blackout, the solar panels will continue to deliver power as long as irradiance is sufficient. In this case, the supply line becomes an ""island"" with power surrounded by a ""sea"" of unpowered lines. For this reason, solar inverters that are designed to supply power to the grid are generally required to have some sort of automatic anti-islanding circuitry in them.In intentional islanding, the generator disconnects from the grid, and forces the distributed generator to power the local circuit. This is often used as a power backup system for buildings that normally sell their excess power to the grid.
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