j500 j501 j502 j503 j504 j505 j506 j507 j508 j509 j510 j511 current
... Absolute maximum ratings are limiting values above which serviceability may be impaired. ...
... Absolute maximum ratings are limiting values above which serviceability may be impaired. ...
Using Digi Products in the Real World: Issues of
... added to the line. Avoid using the MOV in data communications where it affects the signal. MOV also has a tendency to progressively leak more current after every surge handled. 2.1.5 RS-232 and Surge Management Since RS-232 runs the ground directly through the cable, proper surge protection is diffi ...
... added to the line. Avoid using the MOV in data communications where it affects the signal. MOV also has a tendency to progressively leak more current after every surge handled. 2.1.5 RS-232 and Surge Management Since RS-232 runs the ground directly through the cable, proper surge protection is diffi ...
University of North Carolina-Charlotte Department of Electrical and Computer Engineering
... b) Home If you leave the secondary open-circuited and connect the primary to an impedance meter, what is the impedance that you would measure? Provide an expression in terms of the parameters in the circuit above. To answer this problem, you should know that an impedance meter places a sinusoidal vo ...
... b) Home If you leave the secondary open-circuited and connect the primary to an impedance meter, what is the impedance that you would measure? Provide an expression in terms of the parameters in the circuit above. To answer this problem, you should know that an impedance meter places a sinusoidal vo ...
Power It! 8-Outlet Safety Power Strip, 12
... Its bright yellow color alerts you and others that power cords and tools are in use. OSHA color guidelines, outlined in Document 1910.145, alert users to hazardous situations, which may cause minor or moderate injury. This Tripp Lite product complies with those guidelines. ...
... Its bright yellow color alerts you and others that power cords and tools are in use. OSHA color guidelines, outlined in Document 1910.145, alert users to hazardous situations, which may cause minor or moderate injury. This Tripp Lite product complies with those guidelines. ...
Three-Phase Supply - Electrical Division
... supply in any premises. Comparing single-phase and three-phase supplies, the latter has quite a number of merits. Since the three-phase supply is an integration of three single-phase supplies, hence it delivers more power to drive larger loads. Each single-phase supply has a return conductor. A thre ...
... supply in any premises. Comparing single-phase and three-phase supplies, the latter has quite a number of merits. Since the three-phase supply is an integration of three single-phase supplies, hence it delivers more power to drive larger loads. Each single-phase supply has a return conductor. A thre ...
Effects of GIC Neutral Blocking Devices (NBDs) on Transmission
... system zero sequence network should be expected to result in an amplification of neutral current and voltage across the blocking ...
... system zero sequence network should be expected to result in an amplification of neutral current and voltage across the blocking ...
There are occasions where changes may need to be
... changed to provide acceptable protection for busbars while the busbar protection system is out of service. At the request of the supplier to update the settings on the equipment. This could, for example, happen on Current Differential Protection setting following the changes to the telecommunication ...
... changed to provide acceptable protection for busbars while the busbar protection system is out of service. At the request of the supplier to update the settings on the equipment. This could, for example, happen on Current Differential Protection setting following the changes to the telecommunication ...
For those who want to break into the field of power quality, the Fluke
... knowledge to investigate distribution systems containing electronic (nonlinear) loads. “Poor power quality” is any deviation in the electrical supply to equipment that results in its mis-operation or reduces its reliability. Such deviations may occur for only milliseconds or less, are often caused b ...
... knowledge to investigate distribution systems containing electronic (nonlinear) loads. “Poor power quality” is any deviation in the electrical supply to equipment that results in its mis-operation or reduces its reliability. Such deviations may occur for only milliseconds or less, are often caused b ...
Training Slides
... Standard Surge Withstand Capability (SWC) Tests for Protective Relays and Relay Systems Applies to a system and not individual components SPDs will help comply to the standard ...
... Standard Surge Withstand Capability (SWC) Tests for Protective Relays and Relay Systems Applies to a system and not individual components SPDs will help comply to the standard ...
43 Power quality improvement by using multi converter unified
... network rather than control the power flow of a single line by, for instance, a UPFC. 2. Power Quality With increasing applications of nonlinear and electronically switched devices in distribution systems and industries, powerquality (PQ) problems, such as harmonics, flicker, and imbalance have beco ...
... network rather than control the power flow of a single line by, for instance, a UPFC. 2. Power Quality With increasing applications of nonlinear and electronically switched devices in distribution systems and industries, powerquality (PQ) problems, such as harmonics, flicker, and imbalance have beco ...
Design Guide
... noise, and provide shielding between internal circuits and the environment. Good design practices apply throughout the entire design, not just to the LXT971A device, and include the following: ...
... noise, and provide shielding between internal circuits and the environment. Good design practices apply throughout the entire design, not just to the LXT971A device, and include the following: ...
PUB-NP-279 Q. Describe Newfoundland Power’s protective relaying criteria (standard design
... The principle of bus differential protection is based on the engineering rule that the total amount of electricity entering an electrical node must exactly equal the amount of electricity leaving the node. For substation buses, if this rule fails because the electricity flow on transmission lines in ...
... The principle of bus differential protection is based on the engineering rule that the total amount of electricity entering an electrical node must exactly equal the amount of electricity leaving the node. For substation buses, if this rule fails because the electricity flow on transmission lines in ...
High Impedance Fault Detection on Distribution Systems
... bar to make contact with the fallen wire and create a ground fault. The ground fault created will cause conventional overcurrent protection to operate. Sagging conductors that do not come in contact with earth or a grounded object could be detected by this mechanical method. The installation and mai ...
... bar to make contact with the fallen wire and create a ground fault. The ground fault created will cause conventional overcurrent protection to operate. Sagging conductors that do not come in contact with earth or a grounded object could be detected by this mechanical method. The installation and mai ...
2N5195
... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notic ...
... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notic ...
FINAL POSTER
... The characteristic drop across a MOSFET is used along with a current mirror to provide a stable reference for output. The output changes slightly with temperature, but not enough to make a significant difference at normal operating points. ...
... The characteristic drop across a MOSFET is used along with a current mirror to provide a stable reference for output. The output changes slightly with temperature, but not enough to make a significant difference at normal operating points. ...
(b) DAC0808
... A negative reference voltage may be used if R14 is grounded and the reference voltage is applied to R15 as shown in Figure 8 . A high input impedance is the main advantage of this method. Compensation involves a capacitor to VEE on pin 16, using the values of the previous paragraph. The negative ref ...
... A negative reference voltage may be used if R14 is grounded and the reference voltage is applied to R15 as shown in Figure 8 . A high input impedance is the main advantage of this method. Compensation involves a capacitor to VEE on pin 16, using the values of the previous paragraph. The negative ref ...
Quad-80 Technical Data Guide - AW
... Removing Quad-80 sensor: Loosen the 3 hex bolts (2) using a 9/64” hex key. Carefully lift the sensor housing (1) to expose the two pairs of embedded sensors (3). If the ground wire (5) is attached to the housing, loosen the screw (6) using a 3/32” hex key and remove ground wire from under the screw. ...
... Removing Quad-80 sensor: Loosen the 3 hex bolts (2) using a 9/64” hex key. Carefully lift the sensor housing (1) to expose the two pairs of embedded sensors (3). If the ground wire (5) is attached to the housing, loosen the screw (6) using a 3/32” hex key and remove ground wire from under the screw. ...
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.