Simulation Analysis of a Power System Protection using Artificial
... voltage and current variables to calculate the impedance of the line.Looking from the relay A during a fault is like a Thévenin circuit with ZFA as the Thévenin impedance. When a fault occurs, the Thévenin impedance will decrease. The magnitude of impedance varies as the location of the fault change ...
... voltage and current variables to calculate the impedance of the line.Looking from the relay A during a fault is like a Thévenin circuit with ZFA as the Thévenin impedance. When a fault occurs, the Thévenin impedance will decrease. The magnitude of impedance varies as the location of the fault change ...
DC684A - Linear Technology
... NOTE: The OPEN and PWRGD pins are provided with separate supplies to facilitate connection of the PWRGD to a DC/DC power converter which may require a different voltage than the system processor which would monitor the OPEN state. Connect a suitable load to the VOUT and GND turrets. This load can be ...
... NOTE: The OPEN and PWRGD pins are provided with separate supplies to facilitate connection of the PWRGD to a DC/DC power converter which may require a different voltage than the system processor which would monitor the OPEN state. Connect a suitable load to the VOUT and GND turrets. This load can be ...
Spark Testers.indd - De Dietrich Process Systems
... not be allowed to remain in contact with the one spot for a long time, but it should be moved continuously to prevent possible damage. While 6000 volts at 0.2 MHz and low amperage is considered non-lethal, direct contact with the spark should always be avoided, as it may produce an involuntary refle ...
... not be allowed to remain in contact with the one spot for a long time, but it should be moved continuously to prevent possible damage. While 6000 volts at 0.2 MHz and low amperage is considered non-lethal, direct contact with the spark should always be avoided, as it may produce an involuntary refle ...
DEM 130 Electrical and Electronic Fundamentals Revised
... Condition Statement: Unless otherwise indicated, evaluation of student’s attainment of objectives is based on knowledge gained from this course. During performance evaluations, students will be provided necessary tools, equipment, materials, specifications, and any other resources necessary to accom ...
... Condition Statement: Unless otherwise indicated, evaluation of student’s attainment of objectives is based on knowledge gained from this course. During performance evaluations, students will be provided necessary tools, equipment, materials, specifications, and any other resources necessary to accom ...
PE3503 - Peregrine Semiconductor
... the same precautions that you would use with other ESD-sensitive devices. Although this device contains circuitry to protect it from damage due to ESD, precautions should be taken to avoid exceeding the rating specified in Table 3. ...
... the same precautions that you would use with other ESD-sensitive devices. Although this device contains circuitry to protect it from damage due to ESD, precautions should be taken to avoid exceeding the rating specified in Table 3. ...
application note uc3842/3/4/5 provides low-cost current
... As mentioned earlier, noise on the current sense or control signals can cause significant pulse-width jitter, particularly with continuous-inductor-current designs. While slope compensation helps alleviate this problem, a better solution is to minimize the amount of noise. In general, noise immunity ...
... As mentioned earlier, noise on the current sense or control signals can cause significant pulse-width jitter, particularly with continuous-inductor-current designs. While slope compensation helps alleviate this problem, a better solution is to minimize the amount of noise. In general, noise immunity ...
higher harmonics analize in led diode lamps used to illumination
... The use of electronic systems with a view to stabilizing operation of the lighting diodes, apart from its many advantages has one important fault – it generates higher harmonic component. The systems of diode lamps emit higher order harmonics to the network, giving rise to important hazard. This phe ...
... The use of electronic systems with a view to stabilizing operation of the lighting diodes, apart from its many advantages has one important fault – it generates higher harmonic component. The systems of diode lamps emit higher order harmonics to the network, giving rise to important hazard. This phe ...
S.T.A.R. Faulted Circuit Indicators
... and reliable performance over the entire specified temperature range, -40 °C to +85 °C, per IEEE Std 495™-1986 standard. ■■ High/Low Trip Rating: Allows for simplified trip rating selection based on the primary amperage rating of the system. For example, select low for 200 A systems, and high for 60 ...
... and reliable performance over the entire specified temperature range, -40 °C to +85 °C, per IEEE Std 495™-1986 standard. ■■ High/Low Trip Rating: Allows for simplified trip rating selection based on the primary amperage rating of the system. For example, select low for 200 A systems, and high for 60 ...
Sniff-It - Triplett Test Equipment
... Checking Telephone and Cablevison Wires for Unexpected Voltage Telephone and cablevision wires normally do not have dangerous voltages on them. However, under certain circumstances, hazardous voltages may appear on the wires, even though the telephone or cablevision works correctly. The voltages are ...
... Checking Telephone and Cablevison Wires for Unexpected Voltage Telephone and cablevision wires normally do not have dangerous voltages on them. However, under certain circumstances, hazardous voltages may appear on the wires, even though the telephone or cablevision works correctly. The voltages are ...
High Accuracy Ultralow I , 300 mA, anyCAP Low Dropout Regulator
... A very high gain error amplifier is used to control this loop. The amplifier is constructed in such a way that at equilibrium it produces a large, temperature-proportional input offset voltage that is repeatable and very well controlled. The temperature proportional offset voltage is combined with t ...
... A very high gain error amplifier is used to control this loop. The amplifier is constructed in such a way that at equilibrium it produces a large, temperature-proportional input offset voltage that is repeatable and very well controlled. The temperature proportional offset voltage is combined with t ...
16890_chapter-06-elect-measurements-meters
... – Describe how to connect a voltmeter to an electrical circuit – List safety precautions for connecting a voltmeter to a circuit – Describe how resistance values are measured using an ohmmeter – Define continuity check ...
... – Describe how to connect a voltmeter to an electrical circuit – List safety precautions for connecting a voltmeter to a circuit – Describe how resistance values are measured using an ohmmeter – Define continuity check ...
I56-3326 MIX-M502MAPA
... NOTICE: This manual should be left with the owner/user of this equipment. General Description The MIX-M502MAPA Interface Module is intended for use in intelligent, two-wire systems, where the individual address of each module is selected using the built-in rotary decade switches. This module allows ...
... NOTICE: This manual should be left with the owner/user of this equipment. General Description The MIX-M502MAPA Interface Module is intended for use in intelligent, two-wire systems, where the individual address of each module is selected using the built-in rotary decade switches. This module allows ...
RL Circuits
... the coil, the configuration of the coil, and the material that fills the coil. A henry is a large unit of inductance. More common units are the mH and the µH. A steady current through a perfect inductor (no resistance) will not produce a voltage across the inductor. The sign of the voltage across an ...
... the coil, the configuration of the coil, and the material that fills the coil. A henry is a large unit of inductance. More common units are the mH and the µH. A steady current through a perfect inductor (no resistance) will not produce a voltage across the inductor. The sign of the voltage across an ...
T ; DC P
... Connect a red wire to the +6V output terminal and a black wire to the COM output terminal. Now connect a resistor of around 800 Ω to the output. How much current is DC power supply measuring? Imeasured = ______________________ ...
... Connect a red wire to the +6V output terminal and a black wire to the COM output terminal. Now connect a resistor of around 800 Ω to the output. How much current is DC power supply measuring? Imeasured = ______________________ ...
Physcial Science-Electricity and Magnetism
... Practice problems for calculating variables in Ohm’s law. Demonstrate electromagnet and electroscope Project Goals and Description of Unit: This unit demonstrates the relationship of electricity and magnetism. By the end of this unit students will be able to: -identify series and parallel circuits; ...
... Practice problems for calculating variables in Ohm’s law. Demonstrate electromagnet and electroscope Project Goals and Description of Unit: This unit demonstrates the relationship of electricity and magnetism. By the end of this unit students will be able to: -identify series and parallel circuits; ...
Common Mode Noise The Often Neglected Tenth Power Problem
... to the voltages required by the CPU and supporting hardware. How are semiconductors affected by common mode noise? The semiconductors used in today’s products can be very sensitive to noise and transients. In some cases, just touching a semiconductor can result in permanent damage. Further, many of ...
... to the voltages required by the CPU and supporting hardware. How are semiconductors affected by common mode noise? The semiconductors used in today’s products can be very sensitive to noise and transients. In some cases, just touching a semiconductor can result in permanent damage. Further, many of ...
Large Scale Solar PV Investment Potential in Ontario 2010-2025
... • Somewhat similar to the SVC controller but connected in series with a transmission line. • The thyristor firing is synchronized with respect to the line current. • Filters are usually not used in this case, which lead to stringent limits on the firing angle α. • In steady state, the device control ...
... • Somewhat similar to the SVC controller but connected in series with a transmission line. • The thyristor firing is synchronized with respect to the line current. • Filters are usually not used in this case, which lead to stringent limits on the firing angle α. • In steady state, the device control ...
Embedded System - 123SeminarsOnly.com
... A parallel resistor short-cut If the resistors in parallel are identical, it can be very easy to work out the equivalent resistance. In this case the equivalent resistance of N identical resistors is the resistance of one resistor divided by N, the number of resistors. So, two 40-ohm resistors in pa ...
... A parallel resistor short-cut If the resistors in parallel are identical, it can be very easy to work out the equivalent resistance. In this case the equivalent resistance of N identical resistors is the resistance of one resistor divided by N, the number of resistors. So, two 40-ohm resistors in pa ...
ReMi Methods
... cables, a laptop, and a device called a DaqLink that digitizes electrical signals from the geophones. The geophones must be oriented in a straight line, not deviating in horizontal or vertical position from the line by more than 5% of total line length, placed in firm contact with the soil or rock a ...
... cables, a laptop, and a device called a DaqLink that digitizes electrical signals from the geophones. The geophones must be oriented in a straight line, not deviating in horizontal or vertical position from the line by more than 5% of total line length, placed in firm contact with the soil or rock a ...
A Quick Introduction to DC Analysis With MicroCap
... window shown in Figure 5 will appear. (The bottom of this window has been cropped.) Type in the desired DC voltage in the value field at the top of the window. (You may want to check the “Show” box just to the right of this field so that the value will be shown on the schematic.) A similar window wi ...
... window shown in Figure 5 will appear. (The bottom of this window has been cropped.) Type in the desired DC voltage in the value field at the top of the window. (You may want to check the “Show” box just to the right of this field so that the value will be shown on the schematic.) A similar window wi ...
Ground (electricity)
In electrical engineering, ground or earth is the reference point in an electrical circuit from which voltages are measured, a common return path for electric current, or a direct physical connection to the Earth.Electrical circuits may be connected to ground (earth) for several reasons. In mains powered equipment, exposed metal parts are connected to ground to prevent user contact with dangerous voltage if electrical insulation fails. Connections to ground limit the build-up of static electricity when handling flammable products or electrostatic-sensitive devices. In some telegraph and power transmission circuits, the earth itself can be used as one conductor of the circuit, saving the cost of installing a separate return conductor (see single-wire earth return).For measurement purposes, the Earth serves as a (reasonably) constant potential reference against which other potentials can be measured. An electrical ground system should have an appropriate current-carrying capability to serve as an adequate zero-voltage reference level. In electronic circuit theory, a ""ground"" is usually idealized as an infinite source or sink for charge, which can absorb an unlimited amount of current without changing its potential. Where a real ground connection has a significant resistance, the approximation of zero potential is no longer valid. Stray voltages or earth potential rise effects will occur, which may create noise in signals or if large enough will produce an electric shock hazard.The use of the term ground (or earth) is so common in electrical and electronics applications that circuits in portable electronic devices such as cell phones and media players as well as circuits in vehicles may be spoken of as having a ""ground"" connection without any actual connection to the Earth, despite ""common"" being a more appropriate term for such a connection. This is usually a large conductor attached to one side of the power supply (such as the ""ground plane"" on a printed circuit board) which serves as the common return path for current from many different components in the circuit.