stepping up electrical safety practices
... requires electrical systems to be de-energized prior to conducting any electrical upgrades or maintenance work. These steps will be followed in this facility to ensure that potential electrical hazards associated with 347-volt system ballasts are managed. (mark those that apply to your facility with ...
... requires electrical systems to be de-energized prior to conducting any electrical upgrades or maintenance work. These steps will be followed in this facility to ensure that potential electrical hazards associated with 347-volt system ballasts are managed. (mark those that apply to your facility with ...
Unit-7Lecture 47 Calibration of Discharge Detectors Partial
... Another method of calibration is to use a secondary standard, consisting of a point-hemisphere electrode system of specified dimensions (refer to LE. Publication 270,1968 (reference no. 8)). This method is more accurate and is easily reproducible. With an over voltage of 10-20% applied above the dis ...
... Another method of calibration is to use a secondary standard, consisting of a point-hemisphere electrode system of specified dimensions (refer to LE. Publication 270,1968 (reference no. 8)). This method is more accurate and is easily reproducible. With an over voltage of 10-20% applied above the dis ...
Fault Current
... 600-V class switchgear (with power circuit breakers or fused switches) and 600 V class switchboards Maximum of 35 kA short-circuit current available; maximum of up to 0.5 sec (30 cycles) bolted-fault clearing time; working distance 18 inches ...
... 600-V class switchgear (with power circuit breakers or fused switches) and 600 V class switchboards Maximum of 35 kA short-circuit current available; maximum of up to 0.5 sec (30 cycles) bolted-fault clearing time; working distance 18 inches ...
APLLP Data Sheet/Manual (obsolete - for reference only)
... 3. Never run Signal or Control cables in the same conduit or raceway with AC power lines, conductors feeding motors, solenoids, SCR controls, and heaters, etc. The cables should be run in metal conduit that is properly grounded. This is especially useful in applications where cable runs are long and ...
... 3. Never run Signal or Control cables in the same conduit or raceway with AC power lines, conductors feeding motors, solenoids, SCR controls, and heaters, etc. The cables should be run in metal conduit that is properly grounded. This is especially useful in applications where cable runs are long and ...
AN1213
... on the measurements. Anyway it is important to pay attention because even when using a current probe it is really easy to couple additional noise, and of course the result consists in the achievement of lower immunity levels than the right ones: the fast transients should be coupled only thanks to t ...
... on the measurements. Anyway it is important to pay attention because even when using a current probe it is really easy to couple additional noise, and of course the result consists in the achievement of lower immunity levels than the right ones: the fast transients should be coupled only thanks to t ...
CODEC Printed Circuit Board Layout Considerations
... Because of the wide dynamic range and the typical environment in which the CODEC is used, PC board layout is very important. It is important with any mixed-signal device but CODECs are often in very “noisy” environments with many digital, and radio frequency (RF) signals, running about the board. So ...
... Because of the wide dynamic range and the typical environment in which the CODEC is used, PC board layout is very important. It is important with any mixed-signal device but CODECs are often in very “noisy” environments with many digital, and radio frequency (RF) signals, running about the board. So ...
- Lotus Live Projects
... microcontroller. The attractiveness of the project is to develop the sinusoidal pulse width modulation (spwm) by using the microcontroller. The microcontroller is able to store all the commands to generate the necessary wave forms to control the frequency of the inverter through proper design of the ...
... microcontroller. The attractiveness of the project is to develop the sinusoidal pulse width modulation (spwm) by using the microcontroller. The microcontroller is able to store all the commands to generate the necessary wave forms to control the frequency of the inverter through proper design of the ...
Wireless Electricity Transmission Based On Electromagnetic
... coupling occurs when the magnetic fields of one object [5]. An electric transformer is a device that uses magnetic induction to transfer energy from its primary winding to its secondary winding, without the windings being connected to each other. It is used to "transform" AC current at one voltage t ...
... coupling occurs when the magnetic fields of one object [5]. An electric transformer is a device that uses magnetic induction to transfer energy from its primary winding to its secondary winding, without the windings being connected to each other. It is used to "transform" AC current at one voltage t ...
TM and TE electromagnetic beams in free space
... can interact with the electromagnetic field of the mode. Applications of this situation are well known in the microwave range, in which the guided waves of linear accelerators deliver energy to electron beams. The idea of using an optical laser cavity as an electron accelerator ...
... can interact with the electromagnetic field of the mode. Applications of this situation are well known in the microwave range, in which the guided waves of linear accelerators deliver energy to electron beams. The idea of using an optical laser cavity as an electron accelerator ...
electronic packaging
... transistors were very insensitive to static charges because of their size and sheer bulk. As the size of these components came down and speed became a factor in their operation, the idea of static sensitivity became known but not yet fully necessary. The progression of transistors to metal oxide ver ...
... transistors were very insensitive to static charges because of their size and sheer bulk. As the size of these components came down and speed became a factor in their operation, the idea of static sensitivity became known but not yet fully necessary. The progression of transistors to metal oxide ver ...
Electromagnetic Waves
... speed of light, was the most dramatic prediction of Maxwell’s equations, published in 1864. These equations represent a complete and consistent set of fundamental physical laws for electricity and magnetism and show that these two disciplines are fundamentally connected or, better, unified. We shall ...
... speed of light, was the most dramatic prediction of Maxwell’s equations, published in 1864. These equations represent a complete and consistent set of fundamental physical laws for electricity and magnetism and show that these two disciplines are fundamentally connected or, better, unified. We shall ...
Conductors Conductors shall be selected with sufficient
... continuous operating condition where no loss of conductor strength will occur. Emergency operation refers to a short-duration time period where the normal current rating is exceeded to meet temporary changes in system operating conditions. Conductors shall be selected so they will not lose more than ...
... continuous operating condition where no loss of conductor strength will occur. Emergency operation refers to a short-duration time period where the normal current rating is exceeded to meet temporary changes in system operating conditions. Conductors shall be selected so they will not lose more than ...
Electromagnetic compatibility
Electromagnetic compatibility (EMC) is the branch of electrical sciences which studies the unintentional generation, propagation and reception of electromagnetic energy with reference to the unwanted effects (electromagnetic interference, or EMI) that such energy may induce. The goal of EMC is the correct operation, in the same electromagnetic environment, of different equipment which use electromagnetic phenomena, and the avoidance of any interference effects.In order to achieve this, EMC pursues two different kinds of issues. Emission issues are related to the unwanted generation of electromagnetic energy by some source, and to the countermeasures which should be taken in order to reduce such generation and to avoid the escape of any remaining energies into the external environment. Susceptibility or immunity issues, in contrast, refer to the correct operation of electrical equipment, referred to as the victim, in the presence of unplanned electromagnetic disturbances.Interference mitigation and hence electromagnetic compatibility is achieved by addressing both emission and susceptibility issues, i.e., quieting the sources of interference and hardening the potential victims. The coupling path between source and victim may also be separately addressed to increase its attenuation.