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It's unclear whether you are asking about frequency or voltage.
The frequency and voltage are specified in the relevant national standards, regulations, and legislation.
In North America, for example, the residential nominal voltage is 240/120 V at 60 Hz. In Europe, the residential nominal voltage and frequency is 230 V at 50 Hz.
By 'nominal', we mean 'named'. National regulations allow these values to vary within specified limits.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoThere is no such thing as 'power factor voltage'. There's power factor, and there's voltage -they are two different things.
By definition, power factor is the cosine of the angle by which a load current lags or leads the supply voltage in an a.c. circuit.
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What is the meaning of rated power frequency withstand voltage?
The r.m.s of sinusoidal power frequency voltage that the equipment can withstand during tests under specified conditions and for a specified time
What is the Ripple frequency of full wave voltage doubler?
It's double the frequency of the power source.
How do you figure out an appliance's power consumption if you have the voltage and Frequency and Current?
You just need the voltage and the current. Watts = Amps x Volts.
Advantage of a choke coil over a resistor in a power supply filter?
A choke is an inductor. For typical power frequency, an inductor will slightly change the power factor, but will not actively use much energy. An abnormal voltage spike on a power supply is equivalent to voltage at a much higher frequency. Inductors appear to be a much greater impedance to high frequencies. This allows the choke to pass "normal" power, while at the same time it blocks "abnormal" power.A resistor acts independent of frequency. It will limit the effects of the high frequency voltage spikes by dissipating their energy, but it will do the same for the normal power system frequency. In effect, it is always using power, when the choke only uses what you don't want to get to the power supply.
When electricity leaves the power plant it is measured in what unit?
There are lots of different units for electricity, depending what aspect you want to measure (power, energy, current, voltage, frequency, etc.).For a power plant, some relevant units include: * Volt, for voltage * Ampere, for current * Watt, for power * Hertz, for frequency
What is the meaning of rated power frequency withstand voltage?
The r.m.s of sinusoidal power frequency voltage that the equipment can withstand during tests under specified conditions and for a specified time
What is the Ripple frequency of full wave voltage doubler?
It's double the frequency of the power source.
Save power by lowering the CPU frequency and voltage?
P states
What is the frequency of the power waveform in capacitive circuit?
The frequency of the power waveform in a capacitive circuit, or for that matter, an inductive circuit, is the same as the input voltage or current. Its just that the current leads the voltage (capacitor) or lags the voltage (inductor) by a phase angle, the cosine of which is the power factor. It does not matter how many sine waves you have, or what their phase angle is; if they all have the same frequency, the resultant, by Fourier analysis, is still a sine wave of the same frequency.
What happens to the output in terms of real power of a generator when you change the voltage and frequency say from 220v 50Hz to 110v 60Hz?
The voltage and frequency ARE the output of the generator. If you change the fuel to the generator, it will change speed, and the voltage will change. Less fuel = less speed = lower frequency = lower voltage.
How do you figure out an appliance's power consumption if you have the voltage and Frequency and Current?
You just need the voltage and the current. Watts = Amps x Volts.
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".
What is relation between frequency and voltage of that frequency?
voltage and frequency both are different quantity.. don't mix it...
Power MOSFET is voltage controlled or frequency controlled device?
A Power MOSFET is a voltage controlled device http://www.profesores.frc.utn.edu.ar/industrial/sistemasinteligentes/UT1/Understandig%20Pwr%20Mosfets.PDF
Advantage of a choke coil over a resistor in a power supply filter?
A choke is an inductor. For typical power frequency, an inductor will slightly change the power factor, but will not actively use much energy. An abnormal voltage spike on a power supply is equivalent to voltage at a much higher frequency. Inductors appear to be a much greater impedance to high frequencies. This allows the choke to pass "normal" power, while at the same time it blocks "abnormal" power.A resistor acts independent of frequency. It will limit the effects of the high frequency voltage spikes by dissipating their energy, but it will do the same for the normal power system frequency. In effect, it is always using power, when the choke only uses what you don't want to get to the power supply.
When electricity leaves the power plant it is measured in what unit?
There are lots of different units for electricity, depending what aspect you want to measure (power, energy, current, voltage, frequency, etc.).For a power plant, some relevant units include: * Volt, for voltage * Ampere, for current * Watt, for power * Hertz, for frequency
Frequency depends on voltage or current?
Frequency doesn't depend on either voltage or current.
