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What voltage would be produced if two different 240 volt transformers were wired on two separate primary phases of a 3-phase system and had their their secondaries wired in series?
In U. S. household wiring the two primary phases of 110 to 120 volts rms are 180° out of phase with each other which is why the voltage measured from line 1 to line 2 is double that of each line measured to the common return. The outputs of two identical transformers would therefore be additive if connected in series and in phase and subtractive if out of phase. Please note that if the phase relationship of the inputs is unknown, such as that coming from two independent portable generators, for example, the summed output voltage will be unpredictable.
Why 1.73 to be taken for kva to amps conversion in 3 phase?
1.73 is the square root of the whole number 3, (rounded off to two decimals), and is used in virtually all 3 phase calculations.
Can a low pass filter be used as an integrator?
When a low pass filter is used with a sine wave input, the output is also a sine wave. The output will be reduced in amplitude and phase shifted when the frequency is high, but it is still a sine wave. This is not the case for square or triangular wave inputs. For non-sinusoidal inputs the circuit is called an integrator.
What are the two classifications of inputs?
Digital (numeric)Analog (voltage or current)Discrete (individual switch/relay closures)Analog (frequency or phase)SerialAnalog (polyphase syncro or servo)etc. application specific classifications of input
What is the phase relationship between the input and output signals of the common collector amplifier?
Common emitter is the only transistor configuration that has an 180 degree phase difference between input and output. Common base and common collector outputs are in phase with the input.***********************************That is incorrect.The output of the common emitter is inverted, there is no phase shift.
What are two outputs of the Technology Maturation and Risk Reduction (TMRR) phase?
the development request for proposal and the reliability. Avilability, and maintainability cost report (Ram_c)
What is one major phase in a project?
milestone In addition, the crucial phase in any project is Planning. Some of the outputs are project organization and workplan.
What is difference between a phase and a phase transition?
a phase is a region with homogeneous (uniform) properties and a conversion between states is called a "phase transition"
What is conversion of 4.6kva to kw?
Single-phase, 2.5 amps; three-phase 1.443 amps.
What is ripple frequency of 50 Hz 3 phase full ac supply?
A single phase half wave rectifier outputs ripple the same frequency as the input. A single phase full wave rectifier outputs ripple fundamental twice the input frequency (assuming balanced recitfiers). A three phase full wave rectifier outputs ripple fundamental six times the input frequency. So 50 Hz input would yield 300 Hz ripple. See Sources and Related Links for more information.
What is the need of single phase to three phase conversion?
There is no need of single phase to three phase conversions. Both service types are available from the local utility company.
What are the inputs to the close project or phase process?
-Organizational process assets -The project management plan -Accepted deliverables
What is mobile and stationary phase in Chromatography?
In chromatography, the mobile phase is the solvent that carries the sample through the stationary phase. The stationary phase is the material that interacts with the components of the sample, causing separation based on differences in their affinity for the stationary phase.
Conversion of a solid directly to a gas is defined as?
The direct conversion of a solid to a gas is called sublimation. In this process, the solid phase skips the liquid phase and transforms directly into a gas when heated.
What inputs are usedduring the Close Project or Phase process?
Org process assets Accepted deliverables The project management plan
Why 3 phase to 2 phase conversion is done in Scott connection of transformers?
Because that is the simplest, cheapest and most efficient way to do it.
What are two outputs of the technology maturation and risk reduction phase?
the development request for proposal and the reliability. Avilability, and maintainability cost report (Ram_c)
