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An Investigation of Short Circuit Analysis in Komag Sarawak
An Investigation of Short Circuit Analysis in Komag Sarawak

... An electrical power system is always planned, designed, constructed and commissioned and operated to ensure optimum reliability, safety and economic supply. However, even the most flawless designed system could not avoid the occurrence of short circuits. This could be due to factors such as lightnin ...
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... solutions (PQS) for many years. In the past, most consumer loads were linear, i.e. when they were connected to a sinusoidal voltage, the current was also sinusoidal. In the meantime, the use of power electronics has significantly increased. These devices are usually non-linear, i.e. when connected t ...
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VISHAY IL300 datasheet

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Reverse Voltage Behavior of Solid Tantalum Capacitors

... capacitors during normal operation. As the device operating temperature increases, the rated voltage needs to reduce to avoid excess voltage stress across the dielectric. Under reverse voltages, experimental evidence within AVX indicates that a component of the reverse leakage current flows in very ...
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... inputs are available such as a computer motherboard with an ATX style power supply that provides 5V and 3.3V to the board. One such application is the new graphic chip sets that require anywhere from 2.4V to 2.7V supply. The AP1186-ADJ can easily be programmed with the addition of two external resis ...
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self oscillating dimmable electronic ballast
self oscillating dimmable electronic ballast

... no electrical connection from one end to the other. To "strike the arc", a high voltage must be applied across the lamp which will ionizes the gas and this will instantly "cold start" the lamp and shorten its life by sputtering electronemitting material from its cathodes. However, if the cathodes ar ...
Chapter 13: Electric Circuits
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... The AP7217A is turned on by setting the EN pin high, and is turned off by pulling it low. If this feature is not used, the EN pin should be tied to IN pin to keep the regulator output on at all time. To ensure proper operation, the signal source used to drive the EN pin must be able to swing above a ...
MAX14571/MAX14572/MAX14573 Adjustable Overvoltage and Overcurrent Protectors with High Accuracy EVALUATION KIT AVAILABLE
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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.
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