Star Impedance using Delta Impedance Solution

STEP 0: Pre-Calculation Summary
Formula Used
Star Impedance Xmer = Delta Impedance Xmer/3
Zy(xmer) = Zd(xmer)/3
This formula uses 2 Variables
Variables Used
Star Impedance Xmer - (Measured in Ohm) - Star Impedance Xmer is defined as the impedance Of star connected network.
Delta Impedance Xmer - (Measured in Ohm) - Delta Impedance Xmer is defined as the impedance of delta connected network.
STEP 1: Convert Input(s) to Base Unit
Delta Impedance Xmer: 20.22 Ohm --> 20.22 Ohm No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Zy(xmer) = Zd(xmer)/3 --> 20.22/3
Evaluating ... ...
Zy(xmer) = 6.74
STEP 3: Convert Result to Output's Unit
6.74 Ohm --> No Conversion Required
FINAL ANSWER
6.74 Ohm <-- Star Impedance Xmer
(Calculation completed in 00.004 seconds)

Credits

Created by Urvi Rathod
Vishwakarma Government Engineering College (VGEC), Ahmedabad
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8 Transformer Sequence Impedance Calculators

Leakage Impedance for Transformer given Zero Sequence Current
Go Leakage Impedance Xmer = (Zero Sequence Voltage Xmer/Zero Sequence Current Xmer)-3*Fault Impedance Xmer
Neutral Impedance for Star Connected Load using Zero Sequence Voltage
Go Fault Impedance Xmer = ((Zero Sequence Voltage Xmer/Zero Sequence Current Xmer)-Star Impedance Xmer)/3
Positive Sequence Impedance for Transformer
Go Positive Sequence Impedance Xmer = Positive Sequence Voltage Xmer/Positive Sequence Current Xmer
Negative Sequence Impedance for Transformer
Go Negative Sequence Impedance Xmer = Negative Sequence Voltage Xmer/Negative Sequence Current Xmer
Leakage Impedance for Transformer given Positive Sequence Voltage
Go Leakage Impedance Xmer = Positive Sequence Voltage Xmer/Positive Sequence Current Xmer
Zero Sequence Impedance for Transformer
Go Zero Sequence Impedance Xmer = Zero Sequence Voltage Xmer/Zero Sequence Current Xmer
Delta Impedance using Star Impedance
Go Delta Impedance Xmer = Star Impedance Xmer*3
Star Impedance using Delta Impedance
Go Star Impedance Xmer = Delta Impedance Xmer/3

Star Impedance using Delta Impedance Formula

Star Impedance Xmer = Delta Impedance Xmer/3
Zy(xmer) = Zd(xmer)/3

What is the advantage of Delta Connection over star connection?

An advantage of the Delta connection is higher reliability. If one of the three primary windings fails, the secondary will still produce a full voltage on all three phases. The only requirement is that the remaining two phases must be able to carry the load.

How to Calculate Star Impedance using Delta Impedance?

Star Impedance using Delta Impedance calculator uses Star Impedance Xmer = Delta Impedance Xmer/3 to calculate the Star Impedance Xmer, The Star Impedance using Delta Impedance formula is defined as the frequency domain ratio of the voltage to the current of the star-connected network. Star Impedance Xmer is denoted by Zy(xmer) symbol.

How to calculate Star Impedance using Delta Impedance using this online calculator? To use this online calculator for Star Impedance using Delta Impedance, enter Delta Impedance Xmer (Zd(xmer)) and hit the calculate button. Here is how the Star Impedance using Delta Impedance calculation can be explained with given input values -> 6.74 = 20.22/3.

FAQ

What is Star Impedance using Delta Impedance?
The Star Impedance using Delta Impedance formula is defined as the frequency domain ratio of the voltage to the current of the star-connected network and is represented as Zy(xmer) = Zd(xmer)/3 or Star Impedance Xmer = Delta Impedance Xmer/3. Delta Impedance Xmer is defined as the impedance of delta connected network.
How to calculate Star Impedance using Delta Impedance?
The Star Impedance using Delta Impedance formula is defined as the frequency domain ratio of the voltage to the current of the star-connected network is calculated using Star Impedance Xmer = Delta Impedance Xmer/3. To calculate Star Impedance using Delta Impedance, you need Delta Impedance Xmer (Zd(xmer)). With our tool, you need to enter the respective value for Delta Impedance Xmer and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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