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What is the voltage value between one leg of a 208 volt system and the ground wire?
Wiki User
∙ 16y ago
Well if you are talking about phases, it would be half of 208V.
Wiki User
∙ 16y ago
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Why 1.732 value is include in three phase calculations?
It is the square root of 3. Multiply 1.732 to 120v. and you get 208. which, on a three phase system, is the voltage from line to ground.
What is rms value in ac system?
The r.m.s. value of an alternating current or voltage is the value of direct current or voltage which produces the same heating effect.
What is under-voltage tripping?
The Voltage of the power supply system is rated at its designed value. If this voltage goes down predetermined set value a under voltage relay can sense the change and then trips off the circuit.
What is RMS Peak value and average value?
RMS is used to determine the average power in an alternating current. Since the voltage in an A/C system oscillates between + and -, the actual average is zero. The RMS or "nominal" voltage is defined as the square root of the average value of the square of the current, and is about 70.7% of the peak value.************************************************************The r.m.s. value of an alternating current or voltage is the value of direct current or voltage which produces the same heating effect.Fo a sine wave, the r.m.s. value is 0.707 x the peak value.The average value is different; for a sine wave it is 0.636 x the peak value.
How much voltage in phase to phase?
First of all, the correct term is 'line to line', not'phase to phase'. The line to line voltage is called a line voltage, and its value depends on the electrical standards in your country, and the point in the electrical tranmission/distribution system where it is measured. In the UK, for example, its value could be between 400 kV (high-voltage transmission line) and 400 V (low-voltage distribution line).
Does line to ground voltage always half the value of line to line voltage?
Line to Ground voltage = line to line voltage / 1.73AnswerIt depends what configuration is being measured. In the case of the secondary of a split-phase distribution transformer used to supply residences in North America, the answer is yes. In the case of a star (wye) connected secondary distribution transformer used to supply residences in Europe, no: the line to ground voltage will be as described in the first answer.
Why rectified output is more than ac input voltage?
It is not. It is just a matter of interpretation. When you measure an AC voltage, you normally measure its average, or RMS, value. In a typical 117 VAC system, for instance, the voltage is alternating between +165 V and -165 V in a sinusoidal form. If you rectify that with a diode, and then filter it with a capacitor, the voltage will be 165 VDC. (Less, of course, by the forward bias drop of the diode.) That is simply the peak value of the original voltage.
Mega test value for 240 volt marine system?
There should be at least 2 meg-ohms between the current carrying conductors and between current carrying conductors and ground.
Why we use binary system?
Computer understands the changes in voltages. To be more precise, a higher voltage and a lower voltage determines the action the computer takes for an input. And to make it more simple for programmers, a higher voltage is given the value 1 and a lower voltage is assigned the value 0.
What is called an effective voltage in Alternating current and if you mention 115 V ac 3 phase means peak voltage is 115 or it is an effective voltage?
115 is the RMS voltage. The actual voltage is a sine wave from -167 to +167 relative to ground. RMS stands for root-mean-square, and it a way of saying that 155 Volts of DC would do the same work on the same sized load. There can be up to 3 phases, and they are the sine wave, shifted by a part of the curve. In most houses, there are 2 phases, and the voltage to ground for each is 110 to 120 V RMS. The voltage between the 2 is 230-240VRMS. 3 phase gets very complex. Each phase is 115 to ground or neutral. 3 PHASE 115V AC EACH PHASE IS 120 DEGRES PHASE SHIFTED THE EFFECTIVE VALUE IS .639 X 115 THE PEAK VALUE OF PHASE IS 1.41X RMS VALUE.
What is positive and negative voltage value?
generally we calculate voltage difference not absolute voltage but we say it voltage so if V(AB) is positive then V(BA) will be negative.V(AB) means voltage difference between A and B.
What is transient voltage?
A transient voltage is a time varying voltage value. Transient says that the voltage value changes, especially from a steady state, to a new value, then back again.
