0
To calculate X/R, you must know what X and R are, then simply divide. The transformer test report should provide this information, and if not, there are ANSII standard values that can be used as estimates.
The X value, or the % impedance are usually given explicitly in the test report (sometimes both, but not always). The R value may be given as load loss at the base MVA rating. To find % R, take the load loss (in watts or kilowatts), and divide by the base MVA.
The % impedance is = %R + j%X, so you may need to do some (vector) math to get %X if not explicitly given.
What else can I help you with?
Where you r not apply ohms law?
in transformer
What is x r ratio?
x/r ratio is reactance/resistance where reactance is impedance * frequency (60 hz)
What formula calculates the current drawn by the transformer for mains electricity?
p=r*i
Where can someone purchase Transformer figurines?
Transformer figurines can be purchased at many retailers. Online Transformer figurines can be purchased at Amazon, Toys 'R' Us, eBay, Craigslist, Toy Wiz and others. In local markets, Transformer figurines can be purchased at Walmart, K-Mart, Toys 'R' Us, Target and comic book stores.
Where are some places the Transformer game can be purchased at?
Transformer video games can be purchased at Game, HMV, Argos, WHSmith and most large supermarkets. Transformer Lego sets can be purchased again at most supermarkets, Argos, toys shops like Toys R' Us and The Entertainer, and Amazon.
What r the primary to secondary turns ratio in the isolation transformer?
a: 1:1 ratio its only purpose is to isolate
What is distribution transformer?
Distribution transformers change the feeder voltage to utilization voltage required by the consumer. they are essentially step down transformer which changes the voltage to standard service voltage. their rating is about 200KVA. since these transformers are operated throughout a day, eventhough they r not carrying load r not, it should hav a good ALL DAY EFFICIENCY .
When calculating subcooling with R-407C?
4 * pi * r * r15 Fby subcooling20The formula for calculating the area of a circle - is Pi x r x r
Where you r not apply ohms law?
in transformer
Formula for calculating the area of sphere?
The formula for calculating the surface area of a sphere is 4πr², where r is the radius of the sphere. This formula represents the area covered by the curved surface of the sphere.
What is the formula for calculating the resistance in an electrical circuit?
The formula for calculating resistance in an electrical circuit is R V/I, where R is the resistance, V is the voltage, and I is the current.
What is the formula for calculating the power (p) in a system when the velocity (v) and radius (r) are known, given that p v2/r?
The formula for calculating power (p) in a system is p v2/r, where v represents velocity and r represents radius.
What is the equation for calculating the area of a circle?
The equation for calculating the area of a circle is A r2, where A represents the area and r is the radius of the circle.
What is the max voltage formula for calculating the maximum voltage in an electrical circuit?
The formula for calculating the maximum voltage in an electrical circuit is V I R, where V is the voltage, I is the current, and R is the resistance.
What is the area in cm2 of a circle?
The formula for calculating the area of a circle - is Pi x r x r... where r is the radius.
What is x r ratio?
x/r ratio is reactance/resistance where reactance is impedance * frequency (60 hz)
What is the formula for calculating the resistance of a capacitor?
The formula for calculating the resistance of a capacitor is R 1 / (2 f C), where R is the resistance in ohms, f is the frequency in hertz, and C is the capacitance in farads.
