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In electrical engineering, the percentage impedance of a transformer is the voltage drop on a full load, which is expressed as a percentage of the specified rated voltage. It's measured by conducting a short circuit test.
When doing per unit analysis, voltage and power are normally the independent values, while impedance and current are normally dependent. Check and see what voltage your generator is producing, and follow it through any transformers, converting it accordingly and write it down in each zone. Any time the voltage changes level, you have to recalculate what your per unit current and impedance are. Choose some X amount of power to be constant throughout the entire system. Z = impedance; V = voltage; S = complex power; I = current. (Z base) = (V base)^2 / (S base) (I base) = (V base) / (S base)
The load current will lag the supply voltage by an angle called a 'phase angle', determined by the values of resistance and inductive reactance. The magnitude of the load current will be determined by the impedance of the circuit, which is the vector sum of the resistance and inductive reactance.
The current will drop. Y??See it this way - resistance is something that opposes current flow. Voltage is the one that helps the current to get across the resistance. So if u have a high resistance, u need a high voltage to get the same current across.But all the values are solely dependent on the output required.Hope that helps.
What it means is that those rated values may not be exceeded, they are the maximum that the machine can take.
if your looking for current (I) = voltage ./. resistance voltage (v) = current x resistance resistance (r) = voltage ./. current plug in your values calculate them then use meter to see if they match!
What is the significance of negative values of voltage and current?Negative values show direction and that is the significance
In electrical engineering, the percentage impedance of a transformer is the voltage drop on a full load, which is expressed as a percentage of the specified rated voltage. It's measured by conducting a short circuit test.
When doing per unit analysis, voltage and power are normally the independent values, while impedance and current are normally dependent. Check and see what voltage your generator is producing, and follow it through any transformers, converting it accordingly and write it down in each zone. Any time the voltage changes level, you have to recalculate what your per unit current and impedance are. Choose some X amount of power to be constant throughout the entire system. Z = impedance; V = voltage; S = complex power; I = current. (Z base) = (V base)^2 / (S base) (I base) = (V base) / (S base)
I think it's only two types. Resistance, the real part of impedance, and reactance,the imaginary part. All possible values of impedance can be made from suitable amountsof each of these.If you absolutely must have three types, then you'll be relieved to hear that reactancecan be positive (inductive, voltage leading) or negative (capacitive, voltage lagging).
The values of Rs and Rl in a circuit impact the current and voltage levels within the circuit. Rs represents the source resistance affecting the input impedance, while Rl represents the load resistance affecting the output impedance. A variation in these values can cause changes in signal attenuation, power dissipation, and overall circuit performance.
For a voltage standing wave ratio (VSWR) of 1.0, the source impedance, load impedance, and transmission line characteristic impedance must be matched. To calculate actual VSWR, you need to know these three values. You're question only supplies one (50 ohm line). Review wikipedia's writeup on "standing wave ratio" to glean an understanding of what you're asking about.
We will always calculate rms value only since the average value of ac current or voltage is zero. So we are using rms values in the ac circuit to calculate the power and to solve an ac circuit.
Yes, in accordance with Ohms law. Accross a given resistance, current will increase directly proportional to the increase in Voltage. Voltage(Volts) = Current (in Amps)x Resistance(in Ohms) You can transpose the formula to find the unknown, given 2 of the values.
The significance of negative values of voltage and current in the digital VOM is to show the accurate and full power that a particular device or equipment has in the result.
The load current will lag the supply voltage by an angle called a 'phase angle', determined by the values of resistance and inductive reactance. The magnitude of the load current will be determined by the impedance of the circuit, which is the vector sum of the resistance and inductive reactance.
Voltage divided by the resistance of what ever you want to measure the current in.