What is the high voltage and insulation tests for transformers ?
How we can generate full-wave...
What is the high voltage and insulation tests for transformers ?
How we can generate full-wave ,chopped-wave and switching wave
voltages in Marx generator for (Lightning and switching impulse
tests )?
Company A is a high voltage equipment manufacturer. They
produced high voltage
transformers rated 300 kV and above. All high voltage tests such as
AC, DC and
impulse have been conducted to the equipment. However, they have
been
penalized due to non-compliance issue. Justify the root cause of
this problem and
support with relevant facts.
The controlled full wave rectifier is connected to the grid. The
rms grid voltage is 230 Volt at 50 Hz. 24 Volt battery will be
charged with 15A. An inductor, which is series connected to the
battery, is used to limit the current ripple. Only The second
harmonics of the output voltage is taken into account. The inductor
R/L ratio is 50. The current ripple is allowed to be 4 amp peak to
peak. Determine the firing angle and R...
For a power supply with full wave bridge rectifier, input
voltage is 230 V and required output voltage
is 12 V DC Load resistance is of 100 . Determine output rms
voltage, dc current, rms current, power, ac power, efficiency of
the rectifier, form factor, ripple factor, transformer utilization
factor,
and size of the transformer Draw complete diagram of the supply
circuit
Demonstrate in Multisim a full wave bridge rectification which
produces a negative voltage at the output. With input voltage set
as 10sin(80*pi*t). Take RL=5.7kΩ. Show the desired output in
oscilloscope with proper scaling. Also perform filtration with
capacitor having the value 50 uF.
Derive the expressions of the average load voltage and current
in single-phase full-wave controlled rectifier (bridge rectifier)
and resistive load. Draw the waveforms of supply voltage, output
voltage, output current and thyristor current.
In a single-phase full-wave controlled rectifier (bridge
rectifier) and resistive load, it is desired to get an average load
voltage of 50 V. Determine the firing angle if the ac supply
voltage is 150 V. If the average load power is 300W, calculate the
average load...
how can we be certain the EM wave we receive from space tell us
all about the composition and the source temperature why, or why
not?
How the location and dynamics of celestial objects affect the
observation of space?