Relaying Short Lines - GE Grid Solutions Online Store
... example, a tree fault, or a fault to ground through a fire can have a very large resistive component relative to the arc resistance. The effect of infeed on this component is to magnify the resistance as well as to shift it in phase angle. Primarily because of the magnification, ground distance func ...
... example, a tree fault, or a fault to ground through a fire can have a very large resistive component relative to the arc resistance. The effect of infeed on this component is to magnify the resistance as well as to shift it in phase angle. Primarily because of the magnification, ground distance func ...
Surge protection - Phoenix Contact
... complete protection against surge voltages. An imaginary circle is drawn around the devices, plants or systems to be protected. Surge protective devices that correspond to the nominal data of the relevant power supply or signal type should be installed at all points where cables intersect this circl ...
... complete protection against surge voltages. An imaginary circle is drawn around the devices, plants or systems to be protected. Surge protective devices that correspond to the nominal data of the relevant power supply or signal type should be installed at all points where cables intersect this circl ...
Diode Applications
... ratings, temperature range, and voltage versus current curves. It is sometimes a very valuable piece of information, even for a technician. There are cases when you might have to select a replacement diode when the type of diode needed may no longer be available. ...
... ratings, temperature range, and voltage versus current curves. It is sometimes a very valuable piece of information, even for a technician. There are cases when you might have to select a replacement diode when the type of diode needed may no longer be available. ...
Sub-1.0 pF Quad ESD Array
... ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any partic ...
... ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any partic ...
Analog Devices Welcomes Hittite Microwave Corporation
... The circuit board used in the final application should use RF circuit design techniques. Signal lines should have 50 ohm impedance while the package ground leads and backside ground slug should be connected directly to the ground plane similar to that shown. A sufficient number of via holes should b ...
... The circuit board used in the final application should use RF circuit design techniques. Signal lines should have 50 ohm impedance while the package ground leads and backside ground slug should be connected directly to the ground plane similar to that shown. A sufficient number of via holes should b ...
comment form
... Any single secondary AC voltage source and/or related input to the Protection System when such voltage inputs are needed excluding the complete loss of an entire CCVT, VT, or similar device with multiple secondary windings. 116-390 Village Boulevard Princeton, New Jersey 08540-5721 609.452.8060 | ww ...
... Any single secondary AC voltage source and/or related input to the Protection System when such voltage inputs are needed excluding the complete loss of an entire CCVT, VT, or similar device with multiple secondary windings. 116-390 Village Boulevard Princeton, New Jersey 08540-5721 609.452.8060 | ww ...
XCS LED Recessed Petro Canopy, CI362X01
... This luminaire must be installed in accordance with the NEC and your local electrical code. If you are not familiar with these codes and requirements, consult a qualified electrician. This luminaire must be supported by building structure that is capable of supporting luminaire weight. This luminair ...
... This luminaire must be installed in accordance with the NEC and your local electrical code. If you are not familiar with these codes and requirements, consult a qualified electrician. This luminaire must be supported by building structure that is capable of supporting luminaire weight. This luminair ...
PCS100 AVC-20 Technical Catalogue
... Industrial and commercial operations need to maximize their use of floor space. The PCS100 AVC 20’s small footprint with industry leading power density means there is no requirement to build additional floor space. It also requires no additional cooling, further reducing the space required to site t ...
... Industrial and commercial operations need to maximize their use of floor space. The PCS100 AVC 20’s small footprint with industry leading power density means there is no requirement to build additional floor space. It also requires no additional cooling, further reducing the space required to site t ...
PolySwitch Mini terminal Bladed Device Helps Protect
... switching temperature (Tsw) either from high current through the part or from an increase in the ambient temperature, the crystallites in the polymer melt and become amorphous. The increase in volume during melting of the crystalline phase separates the conductive particles resulting in a large nonl ...
... switching temperature (Tsw) either from high current through the part or from an increase in the ambient temperature, the crystallites in the polymer melt and become amorphous. The increase in volume during melting of the crystalline phase separates the conductive particles resulting in a large nonl ...
Conductance G of a resistance R is defined as the reciprocal of R, G
... walk along an element connected to it to move to another node, repeat this as often as necessary, and come back to the original node. The path you traced is a closed path or loop. Kirchoff ’s Voltage Law (KVL): The algebraic sum of all the voltages around any closed-path in a circuit equals zero. ...
... walk along an element connected to it to move to another node, repeat this as often as necessary, and come back to the original node. The path you traced is a closed path or loop. Kirchoff ’s Voltage Law (KVL): The algebraic sum of all the voltages around any closed-path in a circuit equals zero. ...
Lab 5: Simple Electrical Circuits
... of the lab will be to develop a model for electricity. A model is a clear mental picture that helps to explain how a physical system behaves and allows you to correctly predict what will happen in new situations. Note that a model is not a complete theory. A theory is a complete explanation in terms ...
... of the lab will be to develop a model for electricity. A model is a clear mental picture that helps to explain how a physical system behaves and allows you to correctly predict what will happen in new situations. Note that a model is not a complete theory. A theory is a complete explanation in terms ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... improving the voltage profile of some weak feeder pillars via the outputs of VAR compensating devices and saves cost by procuring strategies to carrying out security dispatch operation on the grid so as to cater for contingencies in the electrical grid when they occur. ...
... improving the voltage profile of some weak feeder pillars via the outputs of VAR compensating devices and saves cost by procuring strategies to carrying out security dispatch operation on the grid so as to cater for contingencies in the electrical grid when they occur. ...
MAX1472 300MHz-to-450MHz Low-Power, Crystal-Based ASK Transmitter General Description
... The crystal oscillator in the MAX1472 is designed to present a capacitance of approximately 3.1pF between the XTAL1 and XTAL2 pins. If a crystal designed to oscillate with a different load capacitance is used, the crystal is pulled away from its intended operating frequency, thus introducing an erro ...
... The crystal oscillator in the MAX1472 is designed to present a capacitance of approximately 3.1pF between the XTAL1 and XTAL2 pins. If a crystal designed to oscillate with a different load capacitance is used, the crystal is pulled away from its intended operating frequency, thus introducing an erro ...
An Improved Backward/Forward Sweep Load Flow
... sweep algorithm for three-phase load-flow analysis of radial distribution systems. In the backward sweep, Kirchhoff’s Current Law and Kirchhoff’s Voltage Law are used to calculate the upstream bus voltage of each line or a transformer branch. Then, the linear proportional principle is adopted to fin ...
... sweep algorithm for three-phase load-flow analysis of radial distribution systems. In the backward sweep, Kirchhoff’s Current Law and Kirchhoff’s Voltage Law are used to calculate the upstream bus voltage of each line or a transformer branch. Then, the linear proportional principle is adopted to fin ...
Power Electronic Devices
... When a negative voltage is applied across the collector-to-emitter terminal, the junction J1 becomes reverse-biased and its depletion layer extends into the N- drift region. The break down voltage during the reverse-blocking is determined by an open-base BJT formed by the P+ collector/ N- drift/P ba ...
... When a negative voltage is applied across the collector-to-emitter terminal, the junction J1 becomes reverse-biased and its depletion layer extends into the N- drift region. The break down voltage during the reverse-blocking is determined by an open-base BJT formed by the P+ collector/ N- drift/P ba ...
Distribution Lines Design
... 4. Spaced Aerial Cable: SAC In the area where installation of bare conduction is not possible due to limited space such as town on city, then SAC is a good solution. The cable is made of stranded aluminum covered with XLPE insulation. Thus, it can be compact by using spacer at a certain interval alo ...
... 4. Spaced Aerial Cable: SAC In the area where installation of bare conduction is not possible due to limited space such as town on city, then SAC is a good solution. The cable is made of stranded aluminum covered with XLPE insulation. Thus, it can be compact by using spacer at a certain interval alo ...
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.