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Type your answer here... it is used to find the insulation break down of the conductors from turns to turns and layers to layers.it is aninsulation test for the Transformers
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What is the Ripple frequency of full wave voltage doubler?
It's double the frequency of the power source.
Frequency depends on voltage or current?
Frequency doesn't depend on either voltage or current.
What is the effect of low frequency on the voltage?
The frequency would decrease the gain and increase the output voltage
What is voltage sweep generator?
A: Sometimes a spectrum of frequency must be analyzed a voltage to frequency converter can be used to sweep a range of frequency just by changing some DC level.
What will happen to the transformer if double the rated voltage is applied to the winding during the open circuit test?
no voltage will be induced on the secondary side of the motor as the windings will become saturated.
What is the Ripple frequency of full wave voltage doubler?
It's double the frequency of the power source.
What is power frequency withstand voltage test?
A test done on a transformer. The voltage at the power frequency is ramped up to verify the transformer is capable of handling the stresses due to switching and natural phenomena (lighting strikes).Withstand Voltage:The voltage which has to be applied to a test object under specified conditions in a "withstand test" is called the "withstand voltage".
Why dvdf test is required in transformer?
The DVDF (double voltage double frequency) test is an overvoltage withstand test. It is performed by applying a higher than nominal voltage (2 times) to the transformer for a relatively short period of time (usually 1 minute). Since a prolonged (significant) overvoltage will cause the transformer to overexcite, the volts per hertz are kept constant by applying a higher than nominal frequency (2 times in this case).
What is a sweep test?
A sweep test is a method that determines the frequency response of a cable by its generation of RF voltage. This frequency should be varied at a rapid constant rate.
When modulation frequency is double the modulation index is halF and the modulating voltage remains constant the modulation system is?
frequency modulation..
What is relation between frequency and voltage of that frequency?
voltage and frequency both are different quantity.. don't mix it...
Frequency depends on voltage or current?
Frequency doesn't depend on either voltage or current.
What is the effect of low frequency on the voltage?
The frequency would decrease the gain and increase the output voltage
What are the test instruments used in electronics?
Some test instruments used in electronics are:Multimeter - Used to measure voltage, ampere and resistanceOscilloscope - Used to measure frequency and oscillations
What is the mains voltage and frequency used in the united kingdom?
The mains voltage is 230 volts, and the frequency is 50Hz.
What is the voltage and frequency used in US and why?
the voltage and frequency are 110v and 50(or)60hz because the devices which are invented in us are work at that voltage and it is efficient for that devices.
How can the frequency and voltage of an alternator be changed?
The frequency is changed by varying its speed, and the the voltage is changed by varying its field current.
