Arc Flash Hazards
... flash hazard analysis. In addition, IEEE Std. 1584-2002 applies to a wider range of available fault currents (from 700A to 106kA) compared to current issue of NFPA 70E (from 16 to 50kA). Bussmann® was an active participant in the development of IEEE Std. 1584, NFPA 70E, and arc flash hazard testing. ...
... flash hazard analysis. In addition, IEEE Std. 1584-2002 applies to a wider range of available fault currents (from 700A to 106kA) compared to current issue of NFPA 70E (from 16 to 50kA). Bussmann® was an active participant in the development of IEEE Std. 1584, NFPA 70E, and arc flash hazard testing. ...
Bus Edison High Speed Fuse Application
... In general for these applications fuses are only exposed to AC fault conditions and the fuse voltage rating is selected to be equal or greater than the supply line-to-line voltage. In the case of the three phase double Wye (star) arrangement with interphase transformer, the voltage rating of the fus ...
... In general for these applications fuses are only exposed to AC fault conditions and the fuse voltage rating is selected to be equal or greater than the supply line-to-line voltage. In the case of the three phase double Wye (star) arrangement with interphase transformer, the voltage rating of the fus ...
Power Point
... – More voltage is needed to “reignite” the arc after each current zero than a DC arc. – This effect is somewhat cancelled, however, in inductive circuits, as a voltage appears across the gap during a current zero. ...
... – More voltage is needed to “reignite” the arc after each current zero than a DC arc. – This effect is somewhat cancelled, however, in inductive circuits, as a voltage appears across the gap during a current zero. ...
Phono Stage - Classic Valve Design
... each board in series and powers them with higher voltage and lower current. The reason for this is simple – the PAS has limited space and the PA-211 power transformer had to fit in. To have made the 12V winding for the current required by all the tube heaters, would have required a core larger than ...
... each board in series and powers them with higher voltage and lower current. The reason for this is simple – the PAS has limited space and the PA-211 power transformer had to fit in. To have made the 12V winding for the current required by all the tube heaters, would have required a core larger than ...
Micro sem i
... Voltage measurements to be performed 15 seconds after application of dc current. 1N821, 1N823, 1N825, 1N827, and 1N829 also have qualification to MIL-PRF-19500/159 by adding the JAN, JANTX, JANTXV, or ...
... Voltage measurements to be performed 15 seconds after application of dc current. 1N821, 1N823, 1N825, 1N827, and 1N829 also have qualification to MIL-PRF-19500/159 by adding the JAN, JANTX, JANTXV, or ...
BH4201396402
... provides excellent dynamic performance because it It has been recognized that the steady-state acts quickly and an inherent peak current limiting transmittable power can be increased and the voltage capability is also provided. Park’s transformation is profile along the line controlled by appropriat ...
... provides excellent dynamic performance because it It has been recognized that the steady-state acts quickly and an inherent peak current limiting transmittable power can be increased and the voltage capability is also provided. Park’s transformation is profile along the line controlled by appropriat ...
DN561 High Voltage, High Efficiency Positive to Negative Converter
... Design Note 561 Victor Khasiev Introduction Positive to negative conversion (inverting output) is widely used in LCD devices, OLED displays, audio amplifiers, industrial machinery, semiconductor manufacturing process control equipment, measurement tools, testing systems, LED drivers and battery char ...
... Design Note 561 Victor Khasiev Introduction Positive to negative conversion (inverting output) is widely used in LCD devices, OLED displays, audio amplifiers, industrial machinery, semiconductor manufacturing process control equipment, measurement tools, testing systems, LED drivers and battery char ...
File - Go ELECTRONICS
... In high power application diode are connected in parallel to increase the current carrying capability to meet the desired current requirements .Where current sharing of diode would be in accord with their respective forward voltage drop uniform current sharing can be achieved by providing the equ ...
... In high power application diode are connected in parallel to increase the current carrying capability to meet the desired current requirements .Where current sharing of diode would be in accord with their respective forward voltage drop uniform current sharing can be achieved by providing the equ ...
EE442 FE Spr 98-99 - faraday - Eastern Mediterranean University
... 2-) In the resonant-pulse commutation circuit shown below, assume that the initial capacitor voltage is Vo = Vs . (a) The maximum load current to be commutated is Ia = 15 A. Find the maximum tq of the main thyristor T1 . (b) For Ia = 10 A, find the overvoltage on the capacitor after the commutation ...
... 2-) In the resonant-pulse commutation circuit shown below, assume that the initial capacitor voltage is Vo = Vs . (a) The maximum load current to be commutated is Ia = 15 A. Find the maximum tq of the main thyristor T1 . (b) For Ia = 10 A, find the overvoltage on the capacitor after the commutation ...
LED level meter driver, 12–point, VU scale, dot or bar display
... for the relationship between the value of this resistor and the current value. The recommended value is 27kΩ for green LEDs, and 39kΩ for red LEDs. If the LED current is set too high, the allowable power dissipation of the package may be exceeded, so exercise due caution. (2) Input coupling capacito ...
... for the relationship between the value of this resistor and the current value. The recommended value is 27kΩ for green LEDs, and 39kΩ for red LEDs. If the LED current is set too high, the allowable power dissipation of the package may be exceeded, so exercise due caution. (2) Input coupling capacito ...
Mercury-arc valve
A mercury-arc valve or mercury-vapor rectifier or (UK) mercury-arc rectifier is a type of electrical rectifier used for converting high-voltage or high-current alternating current (AC) into direct current (DC). It is a type of cold cathode gas-filled tube, but is unusual in that the cathode, instead of being solid, is made from a pool of liquid mercury and is therefore self-restoring. As a result, mercury-arc valves were much more rugged, long-lasting and could carry much higher currents than most other types of gas discharge tube.Invented in 1902 by Peter Cooper Hewitt, mercury-arc rectifiers were used to provide power for industrial motors, electric railways, streetcars, and electric locomotives, as well as for radio transmitters and for high-voltage direct current (HVDC) power transmission. They were the primary method of high power rectification before the advent of semiconductor rectifiers, such as diodes, thyristors and gate turn-off thyristors (GTOs) in the 1970s.