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Solution
Solution

... A 200-MVA, 15/200-kV single-phase power transformer has a per-unit resistance of 1.2 percent and a per-unit reactance of 5 percent (data taken from the transformer’s nameplate). The magnetizing impedance is j80 per unit. (a) Find the equivalent circuit referred to the low-voltage side of this transf ...
LB3419962001
LB3419962001

Power System
Power System

... (0.8+j0.5) ohm; Section SP =(3+j2) ohm. Determine the currents in various sections and station bus-bar ...
Introduction to the Mechatronic Engineering Laboratory Equipment
Introduction to the Mechatronic Engineering Laboratory Equipment

... conductor. Through wear (or by someone jamming too large a lead into one of the holes), the Uchannel can be bent open, which will result in a poor or intermittent electrical connection. (This is one of the major disadvantages of using a solderless breadboard and something to keep in mind when you ar ...
HMC732LC4B 数据资料DataSheet下载
HMC732LC4B 数据资料DataSheet下载

... The HMC732LC4B is a wideband MMIC Voltage Controlled Oscillator which incorporates the resonator, negative resistance device, and varactor diode. Output power and phase noise performance are excellent over temperature due to the oscillator’s monolithic construction. The Vtune port accepts an analog ...
MAX44299 Current and Voltage Sense with Power Measurement
MAX44299 Current and Voltage Sense with Power Measurement

... Full-Scale Output Current Select. Connect ISET to ground or leave it unconnected to select the full-scale output current of 100µA. ...
DRV591 数据资料 dataSheet 下载
DRV591 数据资料 dataSheet 下载

... designed for the worst-case conditions during operation, which is typically when the differential output is at 50% duty cycle. The following section serves as a starting point for the design, and any calculations should be confirmed with a prototype circuit in the lab. Any filter should always be pl ...


... can be converted into mechanical energy and vice versa, when there is a power failure and in these situations there is a reduction in electricity(by switching off the supply) expenditures. The design consists of a piezo ignitor, a stack actuator, audio amplifier, microcontroller, a pyroelectric crys ...
osc/INTELLIMETER - Standard Energy Systems, Inc.
osc/INTELLIMETER - Standard Energy Systems, Inc.

... If solid-core window type current transformers are used, remove each feeder from its lug and place a current transformer on the feeder with the polarity mark on the line side of the current transformer. When metering critical loads that cannot be shut down, provision of a means to short circuit CT s ...
Dual Modulus Prescaler Using Current Mode Logic
Dual Modulus Prescaler Using Current Mode Logic

1 of 3 BYBEE MUSIC RAIL™ White Paper
1 of 3 BYBEE MUSIC RAIL™ White Paper

... Before explaining what actually happens in the power supply of an audio amplifier, we must first string these analogies together. It has been shown mathematically by many practitioners over many decades that electric current is analogous to flowing water and vibrating strings. Let's now combine the ...
variable frequency 101
variable frequency 101

... of poles (windings) in its stator and the frequency of the AC power source. Increase the number of poles and the rotational speed decreases. The opposite occurs with a change in frequency. Increase the frequency and rotational speed increases - - decrease frequency and rotational speed decreases. Th ...
V. C. Summer Nuclear Station, Units 2 and 3 COL Application
V. C. Summer Nuclear Station, Units 2 and 3 COL Application

... buses. Each connection between the buses is made with three circuit breakers and two circuits (referred to as a bay). This arrangement allows for breaker maintenance without interruption of service. A fault on either bus will cause no circuit interruption. A breaker failure may result in the loss of ...
6000
6000

... The difference between the voltage settings for two or more power supplies of the same model connected in parallel should not exceed 15V. The minimum voltage setting should not be less than 10V. If it is necessary to be lower than 10V, the voltage difference should be less than 2V. The closer to 0V, ...
OP-AMP Basics Simple OP-AMP circuits
OP-AMP Basics Simple OP-AMP circuits

... Application hint: The input impedance on some CMOS amplifiers is so high that without any input the non-inverting input can float around to different voltages (i.e. the input pin picks up signals like an antenna). In cases where the input could be disconnected (such as when coming from an external s ...
EE-3306 HC6811 Lab #4
EE-3306 HC6811 Lab #4

... what are the smallest voltage step sizes that can be detected? 3. Which bit selects the clock source for the A/D converter? What is the reason for switching to an RC oscillator if the system clock frequency is too low. What are the disadvantages of using the RC oscillator? 4. In part 1, there are di ...
The design of a high voltage scr pulse generator for
The design of a high voltage scr pulse generator for

... exciting ultrasonic transducers in the pulse echo mode. The first involves the generation of a medium voltage, pulsed, radio frequency sinusoid using a gated oscillator, and the second involves the generation of a high voltage spike by a sudden discharge of a capacitor charged to several hundreds of ...
Differntial Ring Voltage Controlled Oscillator -A
Differntial Ring Voltage Controlled Oscillator -A

Programmable High-Output-Impedance, Large
Programmable High-Output-Impedance, Large

... stimulation pulses and delivering them to the target tissue. In general, electrical stimulation of excitable cells can be performed in one of the following forms: " Voltage-controlled stimulation (VCS), in which a voltage pulse is applied to the target tissue. A main drawback for this approach is th ...
EUP8020X Dual Source AC/USB Li-Ion/Polymer Charger IC for Portable Applications
EUP8020X Dual Source AC/USB Li-Ion/Polymer Charger IC for Portable Applications

... system. In the USB configuration, the host can select from the two preset charge rates of 100 mA and 500 mA. In the AC−adapter configuration an external resistor sets the magnitude of the charge current, which may be programmed up to 1A. The EUP8020X charges the battery in three phases: conditioning ...
125°C Temperature
125°C Temperature

... high closed-loop gains. Stability of offsets and gain with time or variations in temperature is excellent. The accuracy and stability of the OP07, event at high gain, combined with the freedom from external nulling have made the OP07 and industry standard for instrumentation applications. The OP07 i ...
Document
Document

... Hypothetical reactive power injections to bus i and bus j, will result in a change in net reactive bus powers Qi and Qj. This in turn, will result in a change in system state variables with respect to pre-outage values. This change must be equivalent to the changes when the line is outaged. Load ...
Optical Receiver 80Mbit/s front-end
Optical Receiver 80Mbit/s front-end

... The specifications of the circuit require the output to be Low Voltage Differential Signaling (LVDS). LVDS is a high speed, low power general-purpose interface standard using differential data transmission, and it is independent of a specific power supply [8]. The LVDS driver has been designed as a ...
infratek 108a single- to six phase power analyzer
infratek 108a single- to six phase power analyzer

AFV User Manual - Intepro Systems
AFV User Manual - Intepro Systems

... To properly protect the equipment, only the personnel of Intepro Systems are allowed to open the front door or side cover. If the quality assurance seal is broken, required services will incur charges and guaranty is void. Danger: conditions that may cause serious equipment damages or human casualti ...
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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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