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This occurs due to a sudden "cut-off" or suspension, or release of voltage. Sometimes this can even cause a breaker to trip, or a GFI unit to trip, due to the sudden spike.
A2.) As a magnetic field collapses it induces currents in conductors nearby.
The faster the field collapses the higher the voltage.
This applies to inductive circuits. Although an inductor (coil) may not be physically present in any particular circuit, there is always inductance present, by the very wires themselves.
All electrical circuits have reactive components - parts of the circuit that hold charge, such as inductors and capacitors. When switching these elements out, the charge they are holding cannot instantly go to zero; it's released in the form of a spike. When switching these elements into a circuit, a sag can result due to these elements attempting to absorb power. Switching in can also result in spikes due to the capacitive and reactive elements creating a "tank" circuit (the voltage will sag slightly, then spike). At their resonant frequency, the reactive and capacitive elements will cause voltages to spike signficantly (for more information, look up LC tank circuits). Similarly, switching out can result in the trapped energy between capacitive and reactive elements to pass back and forth at a resonant frequency, spiking the voltage.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoVoltage is energy per charge, specifically, joules per coulomb. Ultimately, charge is an imbalance of electrons between two points so, loosely interpreted, electrons cause voltage.
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What is impulse votage?
Sudden rise in Voltage is called Impulse voltage.
What are power system transients?
Power system transients are voltage or current spikes, sudden and brief increases or decreases in the supplied power. These can be harmful for some types of electronic devices, and can be seen by a brief flicker of either dimmer or brighter light from light bulbs.
What do you mean by Computers are susceptible to sudden surges or drops in electrical line voltage?
Computers are sensitive electronic devices violent voltage fluctuations can burn up individual components or corrupt your data.
What causes sudden voltage drop in houses incase of ac?
Often, this is due to a sudden increase in the load current due, for example, to the the starting current of a motor which has been switched on -this causes a temporary increase in the voltage drop along the line, which is often noticed when the lights in a property temporarily dim. Other causes could be due to external sources, such as a neighbour operating welding equipment.
How does a choke work in a tube light circuit?
The choke works in conjunction with a starter . When you turn on the light , voltage is applied to the choke, and when the switch opens after a few seconds, it creates a high voltage across the contacts at each end of the tube. This starts the ionization of the gas , which glows. Once ionized, it continues producing light even when the voltage applied is only 120 VAC, the power line voltage.
What does computer SPIKE mean?
A Spike is a sudden increase in voltage that lasts for a very short period and exceeds 100% of the normal voltage on a line. Spikes can be caused by lightning strikes, but can also occur when the electrical system comes back on after a blackout.
What is impulse votage?
Sudden rise in Voltage is called Impulse voltage.
What is the function of shunt reator?
it is electrical device connected with high voltage current grids in order to protect the system from sudden drop or sudden change is voltage.
What is surge voltage?
Surge voltage means sudden big voltage. Surge voltage is of two types lightening surge and switching surge or in electrical engineering, a voltage rise that endangers the insulation of electric equipment. A correct calculation of voltage surges is of great economic and practical importance in the selection of insulation and of measures for power supply system protection, particularly for voltages above 10kilo-volts(kV). There are two types of voltage surges lightning surges and system generated surges.
What protects equipment against sudden changes in power levels such as spikes from lightning strikes?
A surge protector.
Protects equipment against sudden changes in power level such as spikes from lightning strikes?
Surge protectors.
What are power system transients?
Power system transients are voltage or current spikes, sudden and brief increases or decreases in the supplied power. These can be harmful for some types of electronic devices, and can be seen by a brief flicker of either dimmer or brighter light from light bulbs.
Which condition refers to a sudden increase in voltage?
That would be 'spiking'
Which condition refers to a sudden and dramatic increase in voltage which usually caused by lightning?
Surge voltage, voltage step, voltage spike
What are common causes of transient voltage?
Sudden starting of large inductive loads..
What is spike in electricity?
Spike current is mostly caused by lightning, it means a sudden rise and fall in the supply voltage, and can cause damage by breaking through insulation material that is designed for the normal supply voltage and it will most of the time leave behind a thin layer of copper that will cause a short in the circuit
What is spike current?
A spike is a sudden rise in current that then goes back to normal. Usually caused by a sudden increase in voltage that could be caused by a lightening strike, for example.
