Asked in Uncategorized
What is a voltage limiter?
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Asked in Electrical Engineering
Are the terms voltage limiter and voltage regulator interchangeable?
What and where is the voltage limiter on a 1989 ford f 250 4x4?
Asked in Dodge
What does the instrument cluster voltage limiter do on a 1977 Dodge van?
Asked in Electrical Engineering, Electronics
What is voltage limiter?
Sometimes called a snubber. It often consists of a zener diode wired so that some voltage or other cannot exceed the zener voltage. Others use transistors or FETs in more active topologies. The ultimate is a crowbar limiter which simply shorts out a power supply if it exceeds a certain voltage, thus rupturing the supply fuse. (I sometimes refer to them as Sayonara circuits.)
Asked in Electronics Engineering
How does a positive limiter differs from a negative limiter?
Can yo use a 19v dc power supply for a 6v dc load?
What is the difference between a positive limiter and a negative limiter?
What is diode limiter?
AC, or alternating current, is when the current's voltage varies as a sine wave, say alternating from 120 V to -120 V with a period typically on the order of microseconds. Some devices, however, have a maximum current, typically much less than 120 V. In this case, a "diode limiter" is used. The diode limiter is essentially a circuit that does nothing when the voltage is between 0 V and whatever the maximum specified voltage is, but "clips" or "limits the voltage above that. So after, say, 20 V, the sine wave flattens out and is a straight line until it starts to decrease down to -20 V, at which point it becomes a flat line again. Such circuits are made by diodes (hence the name), which are primarily used for turning AC current into DC current.
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Asked in Jeep
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What is the purpose Sheath Voltage Limiter in high voltage Under groung cabling?
A sheath voltage limiter is an arrester that is used to clamp the voltage induced on the sheath of an underground high or medium voltage cable during a fault on the system. It is common practice when applying underground cable to only ground the cable sheath at one end of the cable, and leave the other end open. Leaving one ungrounded reduces circulating currents and losses during steady state operations. IEEE standard 575-1988 indicates that typically distribution arresters can be used for this function. IEC Application guide 60099-5 soon to be published offers a formula to use to determine the voltage rating of the arrester, but does not offer any guidance regarding the energy handling rating.