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In SI, the unit of dielectric strength is volts per meter (V/m). In U.S. customary units, dielectric strength is often specified in volts per mil.
In physics, dielectric strength 2 meanings:
- Of an insulating material, the maximum electric field that a pure material can withstand under ideal conditions without breaking down.
- For a specific configuration of dielectric material and electrodes, the minimum applied electric field that results in breakdown.
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What is the dielectric breakdown strength?
This depends on the particular dielectric. Each has a different breakdown strength.
For an insulating material dielectric strength and dielectric loss should be respectively high or low?
For an insulating material dielectric strength and dielectric loss should be respectively high or low
What happens to Dielectric strength when heated?
it decreases in strength in meany ways for different materials for exsample, with gases if there is an increase in humidity, then it decreases the dielectric strength
Difference between insulation resistance and dielectric strength?
INSULATION RESISTANCE: The insulation resistance is a measure of the capability of a material to withstand leakage of current under a Vdc potential gradient. DIELECTRIC STRENGTH: The dielectric strength is a measure of the ability of the material to withstand a large field strength without electrical breakdown, and is usually expressed in volts per mil (.001') or volts per cm of dielectric.
How does humidity affect the dielectric breakdown strength of air?
Generally, dielectric breakdown strength decreases with increasing humidity. In air, exact relationships between dielectric strength and humidity are hard to derive, due to the numerous other variables compounding the relationships (e.g. electrode size and shape, air temperature and pressure). Sources: http://www.scienceforums.net/topic/37206-dielectric-strength-of-air/ http://en.wikipedia.org/wiki/Dielectric_strength
For an insulating material dielectric strength and dielectric loss should be respectively?
For an insulating material dielectric strength and dielectric loss should be respectively
What is the dielectric breakdown strength?
This depends on the particular dielectric. Each has a different breakdown strength.
Why is the dielectric strength of vacuum infinite?
The dielectric strength of vacuum is infinite because there is no molecule in the vacuum.
For an insulating material dielectric strength and dielectric loss should be respectively high or low?
For an insulating material dielectric strength and dielectric loss should be respectively high or low
What happens to Dielectric strength when heated?
it decreases in strength in meany ways for different materials for exsample, with gases if there is an increase in humidity, then it decreases the dielectric strength
For an insulating material dielectric strength and dielectric loss should be what?
high and high
Is dielectric strength the same as dielectric constant?
No, these are two unrelated properties of a material.
What is dielectric breakdown?
The dielectric breakdown strength is 3,000 volts per millimeter.
Which is another name for dielectric strength test?
ASTM D149 - 09 Standard Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies
How can you test the dielectric strength of oil of transformer?
dielectric strength is tested by transformer dielectric strength oil testing machine. at first, oil which is to be tested is pour near the two electrode. both the electrode should be dipped in oil . then adjust the distance between the electrode .now start the machine.when a sound came from machine then note down the dielectric strength of the oil.
How does the moisture and temp effect the breakdown strength solid dielectric?
Generally, increased moisture levels will lower breakdown strength, especially if the dielectric readily absorbs water. Increasing temperature generally decreases breakdown strength of solid dielectrics. The dielectric strength of some materials may increase with temperature within limited temperature ranges. However, dielectric strength eventually begins to decrease at higher temperatures.
Where is the knowledge of dielectric strength helpful?
One field in which this is helpful is in the manufacture of insulating materials. Dielectric strength determines the strongest electric field an insulator can withstand before it fails. For example, if the insulation around a wire melts or breaks, the insulator's dielectric strength is compromised.
