Ratio Of Transformer Formula. The Transformer Ratio Formula for Voltage is as Follows K= V 1 V 2 Where V1 = Primary voltage V2 = Secondary voltage The Transformer Ratio Formula for Current is as Follows K= I 1 I 2 Where I1 = Primary current I2 = Secondary current Step Up Transformer Formula.
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The current ratio can be defined as the ratio of the current flowing through the secondary winding of a transformer to the current flowing through the primary winding of the same transformer In simple words we can say that the ratio of the secondary current to the primary current is known as the current ratio.
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kVA = transformer rating (kilovoltamperes) V = voltage (volts) Turns Ratio = N 1 / N 2 = V 1 / V 2 = I 2 / I 1 Where N 1 = number of turns on the primary N 2 = number of turns on the secondary V 1 = primary voltage V 2 = secondary voltage I 1 = primary current I 2 = secondary current Example A 50 kVA singlephase transformer has a 4000 V primary and a 400 V secondary.
Transformer Ratio (Voltage Ratio, Current Ratio & Turns
Assuming an ideal transformer and the phase angles ΦP ≡ ΦS Note that the order of the numbers when expressing a transformers turns ratio value is very important as the turns ratio 31 expresses a very different transformer relationship and output voltage than one in which the turns ratio is given as 13.
What is the transformer inductance ratio? How is it
The first number represents the primary’s relative number of turns while the second number represents the secondary’s relative number of turns The turns ratio of a transformer is calculated by applying the following formula N p N s N p N s where NP = number of turns in the primary winding NS = number of turns in the secondary winding .
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The general EMF Equation of the transformer is E= 444 N fФm ———– (7) Voltage Transformation Ratio of Transformer The ratio of the secondary turns to primary turns is known as the voltage transformation ratio of the transformer and it is denoted by letter ‘K’ Dividing equation (6) by equation (5) Es/Ep = 444 Ns fФm/ 444 Np fФm.
