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P3.8.1.2
P3.8.1.2

Selective Wave-Front Based Protection Algorithm for MTDC Systems
Selective Wave-Front Based Protection Algorithm for MTDC Systems

Flexible cords and plugs to 250V
Flexible cords and plugs to 250V

... 2 Flexible cords having tinsel conductors with a nominal cross-sectional area of 0.5 mm2 have a current carrying capacity of 0.5 A. 3 The current-carrying capacity is based on a cable maximum conductor operating temperature of 60°C in order to limit the surface temperatures for the expected use of s ...
M045037985
M045037985

... properties such as high efficiency and linear torquespeed characteristics. The control of dc motors is also simple and does not require complex hardware. However, the main drawbacks of the DC motor is the need of periodic maintenance. The brushes of the mechanical commutator eventually wear out and ...
AT-6000 GDS Ground Fault Detection System
AT-6000 GDS Ground Fault Detection System

... The system detects the occurrence of ground fault leakage current between the generator field circuit and rotor ground, and transmits a good/bad fault determination (based upon a fixed leakage current threshold) from the rotor transmitter to the non-rotating receiver. Note: Although the AT-6000 is a ...
2938633 Datasheet
2938633 Datasheet

... device continuously supplies the IBOOST output current. The device can supply a nominal output current of IN up to an ambient operating temperature of +60°C. The output power must be decreased by 2.5% per Kelvin temperature increase for ambient operating temperatures over +60°C. At ambient operating ...
Measure a Voltage Standing Wave Ratio (VSWR) to Quantify
Measure a Voltage Standing Wave Ratio (VSWR) to Quantify

... connectors, and the load's impedance. The signal's AC voltage will be the same from end to end since it passes through without interference. In real systems, however, mismatched impedances cause some of the power to be reflected back toward the source (like an echo). Reflections cause constructive a ...
optimal location of capacitors and capacitor sizing in a
optimal location of capacitors and capacitor sizing in a

... The krillherd algorithm is implemented on the 10 and 85 IEEE radial test system. The software program is developed in the MATLAB 2009a environment and executed on Intel Core processor i3 – 2120 CPU with 3.30GHz. The results are enlightened below in detail. Case 1: 10 bus system 23kV RDS has 10 buses ...
Lecture 10 - UCF Physics
Lecture 10 - UCF Physics

Distribution High Impedance Fault Location Using Localized Voltage
Distribution High Impedance Fault Location Using Localized Voltage

Abstract - The University of Texas at El Paso
Abstract - The University of Texas at El Paso

Dual Schottky Barrier Diode, 15 V, 2 A
Dual Schottky Barrier Diode, 15 V, 2 A

... rise to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redu ...
Aalborg Universitet
Aalborg Universitet

Full paper template_PEMD
Full paper template_PEMD

... Figs. 12(a) and 12(b) show the input voltage and current of the proposed switching power supply at full load during low-line and high-line inputs, respectively. Figs. 13(a) and 13(b) depict the inductor currents, including the input inductor current, the output inductor current, and the summation of ...
Nonideal Op Amps
Nonideal Op Amps

... the logical high voltage on the mbed), inverting amplifiers should not be used because at least half of the signal will be lost. • Consider non-inverting amplifiers and difference amplifiers. ...
A Novel 20Hz Power Injection Protection Scheme for Stator Ground
A Novel 20Hz Power Injection Protection Scheme for Stator Ground

... motor field is applied to bring it into synchronism with the generator. So there has not low frequency zone because excitation is not existed at the beginning of start-up. In SFC start, synchronous start and wound rotor induction motor start, excitation is required to provide full field at zero spee ...
RGB LED Color Controller
RGB LED Color Controller

... or better cabling. Do not install low-voltage wiring in the same wire run as AC power. If AC and low-voltage wires cross, keep them at 90-degree angles. If you are unclear as to how to install and wire this device, contact a qualified electrician. ...
KENDRIYA VIDYALYA LAITKOR PEAK, SHILLONG JABAL Physics
KENDRIYA VIDYALYA LAITKOR PEAK, SHILLONG JABAL Physics

... A transformer is an electrical device which is used for changing the A.C. voltages. A transformer is most widely used device in both low and high current circuit. As such transformers are built in an amazing strength of sizes. In electronic, measurement and control circuits, transformer size may be ...
Homework #1 - Instructure
Homework #1 - Instructure

... b. What have you heard about this class? (Haven't heard anything about it yet? Check out: https://utah.instructure.com/courses/245932/wiki/resources-what-students-should-know-about-the-flippedclassroom) c. How do you like to learn things? (Lectures, Interactive Software, Web research, Reading (textb ...
Phase Control Using Thyristors
Phase Control Using Thyristors

... A relaxation oscillator is the simplest and most common control circuit for phase control. Figure AN1003.7 illustrates this circuit as it would be used with a Thyristor. Turn-on of the Thyristor occurs when the capacitor is charged through the resistor from a voltage or current source until the brea ...
fast pulser for high-altitude ignition research
fast pulser for high-altitude ignition research

... circumference of the core, and C0 is the capacitance per stage. In this equation, we assume that the load is a capacitor with a capacitance equal to the upstream capacitance; this gives an effective capacitance that is half that of a single capacitor. The approximation assumes that the saturated per ...
Capacitor Circuits
Capacitor Circuits

... • Determine the charge and voltage across any chosen capacitor in a network when given capacitances and the externally applied potential difference. ...
Capacitor Circuits
Capacitor Circuits

... • Determine the charge and voltage across any chosen capacitor in a network when given capacitances and the externally applied potential difference. ...
Electrical Motor Starters
Electrical Motor Starters

... surge current reduces as the motor accelerates up to its running speed. Induction motors can be Direct-on Line (DOL) started in this way. The starting current will not cause damage to the motor unless the motor is repeatedly started and stopped in a short space of time. This is called ‘fast cycling’ ...
LM193/LM293/LM393/LM2903 Low Power Low Offset Voltage Dual
LM193/LM293/LM393/LM2903 Low Power Low Offset Voltage Dual

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Electrical substation



A substation is a part of an electrical generation, transmission, and distribution system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Between the generating station and consumer, electric power may flow through several substations at different voltage levels.Substations may be owned and operated by an electrical utility, or may be owned by a large industrial or commercial customer. Generally substations are unattended, relying on SCADA for remote supervision and control.A substation may include transformers to change voltage levels between high transmission voltages and lower distribution voltages, or at the interconnection of two different transmission voltages. The word substation comes from the days before the distribution system became a grid. As central generation stations became larger, smaller generating plants were converted to distribution stations, receiving their energy supply from a larger plant instead of using their own generators. The first substations were connected to only one power station, where the generators were housed, and were subsidiaries of that power station.
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