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When lightning disturbance directly strikes on transformer terminal and flashover occur forming chopped wave. To confirm this situation, Chopped wave needed.
Mahendra Soni
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∙ 11y ago
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What is impulse votage?
Sudden rise in Voltage is called Impulse voltage.
What is insulation coordination?
Lightning impulse withstand voltage
What does BIL basic insulator level really mean and its differences with Impulse withstand voltage and power frequency withstand voltage?
BIL is basic insulation level as per you or in other words it would be "basic impulse level" which implies the limit up to which an insulator could withstand impulse due to lightning strikes. Impulse is generated on the insulation due to the high voltage surges and spikes due to lightning strikes. BIL is generally much higher as compared to power frequency withstand voltage. In other words BIL is lightning Impulse withstand voltage. Impulse withstand voltage is the voltage that is generated due to switching operation and it's much higher than power frequency withstand, but BIL or the lightning withstand voltage is a the voltage level that an insulation can withstand during surge or lightning strikes.
Why negative impulse is applied during Impulse voltage test?
The lightning phenomena is occurred on transmission lines or sub-stations due to which a negative wave is generated hence definitely destroy the power apparatus. So for impulse voltage testing of any power apparatus one must produce a negative impulse.
What is the meaning of rated lightning impulse withstand voltage?
That is the voltage rating the product can stand up to. If the lightning withstand voltage was 100,000,000V, that means the item could get struck by lightning that is up to 100,000,000V without damaging it.
Define rated impulse voltage?
Simply, the voltage which is withstand by the test object as an impulse is called as rated impulse voltage.
What is impulse votage?
Sudden rise in Voltage is called Impulse voltage.
What is chopped wave in impulse test?
csACaca
What is insulation coordination?
Lightning impulse withstand voltage
What does BIL basic insulator level really mean and its differences with Impulse withstand voltage and power frequency withstand voltage?
BIL is basic insulation level as per you or in other words it would be "basic impulse level" which implies the limit up to which an insulator could withstand impulse due to lightning strikes. Impulse is generated on the insulation due to the high voltage surges and spikes due to lightning strikes. BIL is generally much higher as compared to power frequency withstand voltage. In other words BIL is lightning Impulse withstand voltage. Impulse withstand voltage is the voltage that is generated due to switching operation and it's much higher than power frequency withstand, but BIL or the lightning withstand voltage is a the voltage level that an insulation can withstand during surge or lightning strikes.
What would happen to the voltage impulse value and the magnet is inserted in and withdrawn from the coil?
the voltage will be decreased
What is critical impulse flash over voltage?
This is the peak voltage for a 50% probability of flashover or disruptive charge.
Why negative impulse is applied during Impulse voltage test?
The lightning phenomena is occurred on transmission lines or sub-stations due to which a negative wave is generated hence definitely destroy the power apparatus. So for impulse voltage testing of any power apparatus one must produce a negative impulse.
Distance between ehv lines?
The distance between high voltage lines is governed by either a switching impulse voltage or lightning impulse voltage. The distance between lines, or lines and tower must have a high enough dielectric strength to avoid flashover at these voltage. Air can withstand a voltage of 3kv/mm.
What does BIL stand for in electrical high voltage?
Basic Impulse Level...
What is impulse voltage?
impulse generator equation is a difference of two exponential functions V0 = Vs/k (exp-at - exp-bt)
Is an action potential necessary for a nerve impulse to occur?
Yes, an action potential is needed for a nerve impulse to occur.
